The hiss you're hearing is the sound of a fairly open idle air control valve. Once the valve shuts, the hiss goes away. My MSD atomic EFI does the same thing. Totally normal!
+Rye Bread Yes, the IAC is used for fast idle purposes as well as to maintain curb idle when load is increased(such as when then engine fans or AC is engaged). It also comes into play for anti-stall and other reasons.
i may be running fitech on a weiand 174 set up on a 302, that way i can save some pennies and skip dyno tunning. and have a plug and play set up, roots style supercharger and efi still. cant wait!
+Rye Bread Sounds like fun. I'm running Atomic EFI on a 400ci small block. The biggest improvement vs my carbed setup was in the low and mid-range. Didn't notice much of anything on the top-end, but my QuadraJet was set up pretty well.. You'll still need to figure out where the best fuel and timing curves are for power, but if you have the FiTech controlling fueling and timing things will go a LOT faster - no need to open the carb or play with advance bushings/springs/weights/limiters. Good luck.
Thinking of buying this system for my 79 c10. I would like to install the hand held in the ashtray. I am wondering if the hand held has to be turned on each time I drive the truck.
I know I'm late to the party but I'm looking at the fitech tbi unit and I've got a few questions about your engine. Do you have anything done to the engine or is it stock. I noticed the perimeter bolt valvecovers so i know the heads aren't factory TBI and probably the whole engine. Is it an otherwise stock 350 engine? I've got a mild 350 with a set of trick flow heads and a comp 252xfi roller cam. 252/264 advertised, 202/212 @ .050, .550"/.546" lift. It's got a nice wide 113 LSA so the vacuum signal should be stable for self-learning fuel injection. I'm running a Performer Air-Gap dual plane intake with a 650 Holley. Long tube headers and y pipe to single 3" open exhaust. I'm mostly just checking on driveability of these things with dual plane intakes. I built my truck to have monster torque so i don't want to go to a single plane for the best fuel distribution. Do you think i should go port injection like you or go with TBI?
Eric Ernst It's completely up to you what you want to do. No this engine isn't stock. It's actually a GoodWrench crate engine. It's been almost 10 years since I've done it so I don't remember specs of all the stuff I changed. It's around the 220ish area of duration @50. Intake is an Edelbrock dual plane. Fitech fed this engine wonderfully. Fitech is nice but don't be afraid to look at a Holley Sniper either. Sniper has much higher resolution VE and spark tables as opposed to Fitech that interpolates and extrapolates everything between cells. Get whatever you feel most comfortable with.
This may sound stupid, but I dont see any extra injectors. I'm going to be swapping the GoStreet 400HP system onto my tbi 454 and on the FiTech site, they have a intake that will work but it appears to need injectors and rails. Are there injectors inside of the FiTech throttlebody somewhere?
Nice video on the truck what cables did you disconnect for it to run did you just disconnect the ecm/pcm from the truck harness is because I have a 1989 Chevy 2500 5.7 and I have problems with the wiring is burning the pick up coil in the distributor I thing that is the name and I ve taken the truck to de dealer mechanics, pep boys, and local mechanics and none of them have found the problem
Taylor Blanchard the stock fuel pump for these trucks is tied to the factory ecm. It turns off the fuel pump when it sees no oil pressure. It's a good safeguard. I'm going to keep that setup when i go fitech from my holley 650 carb. The oil pressure sending unit is on top of the block behind the intake manifold. It's about as big around as a big thumb and maybe 4 inches long.
Hey Malibu Jak, I've installed a Fitech on my Chevy 5.7 could. My valves are rattling pretty good so I believe its time to adjust the timing. Could you tell me what all I nned to do with this Setup. I've checked timing before but not when running a Fitech. Is there any wires I need to disconnect prior to clamping on to the number plug wire? Any help will be greatly appreciated.
Did you have to remove the old original fuel pump from the tank or will the new pump pull fuel through it? I’m thinking about putting this kit on my 87 TBI 1 ton.
you were lucky to get one that worked. I had two with issues right out of the box. I spent 2,000 bucks trying to get their junk to work. the fuel comand center failed and puked fuel after 2 hours of use, killed the car and left me sitting on the side of the road. I had enough all the fitech junk went on ebay. Went back to Holley, runs great. fitech made no effort to refund any money. Instead they offered a replacement to sell on ebay. F means something in fitech, I let you decide the word I mean....
I'm sorry to hear about your experience. I help run a group called Fitech Owners Group on Facebook. Ever need help you're welcome to join. I've heard alot of issues from the units and we've been lucky enough to help get several others back up and running.
Malibu Jak I am no longer a fitech owner as they couldn't get their product to work on my car. I had $3600 into a $1600 plug and play system. So I sold all the stuff and moved on to trying to let everyone know their product isn't really as cheap and easy as they make it sound. I would also hate to have anyone fall into the same trap I did. I bought a power adder unit for a supercharger to get away from the heat and tuning issues of a carb, only to not being able to even drive my car without a tow.....
I understand. Not everyone has the same luck as everyone else. Out of the current 400 owners in the group with tech questions. 99% of the issues the team have dealt with have been tuning issues. Which will come with any Efi system really. But that other 1% have been failing Ecus, harnesses and what not. May be that's why I've been so lucky to get my own and several others back on the road because I know basic Efi terminology and such. But Fitech really needs to improve on marketing the product because they've lead people to believe this is a bolt on and go system. When no Efi system truly is. Once again I apologize for your experience.
No apologies needed. I was told they test every unit before it goes out the door, but I received 2 units with faults. Really, I must have the worst luck ever. What's next lightning? Cody from Fitech had me replacing wires, looking for leaks, replaced ignitions from a 6t to a 6al. Finally I just took the unit off and put my carb back off. The operation manager Mark Ward at Fitech said he would send me a unopened unit and I could sell it to reduce my loss. It sounds to me really shady. They know they have a issue but don't offer refunds or fix the miss marketing of this not plug and play model. It still irritates me when they told me "it works on our test motor and not on yours" then on their own test it was a bad ecu. How is that possible if they truly test every unit?
I know I've heard that also. I've talked to Cody a few times and he seems to be the only one truly willing to help. It's a shame. Everyone else there just seems more interested in publicity and selling the product.
So does the old ecm still control all it did before the fitech? What wiring needed to be done? I have an ebl flash system for tuning, do you know if the self tuning system will work with my ebl flash system?
Been a long time, you may not ever see this... you could let the original ECM control timing and knock retard and TCC on/off at the 4 pin on the trans. Could also keep VSS input to the DRAC module for the speedometer. Virtually everything else is out the window. I’m running a EP381 pump at 23psi with vacuum reference on my TBI managed by EBL. Wideband VE learns are the way to go. Just datalog it and let it learn VE from playing those back.
Hey man no problem. I actually wired the low speed through an 80 amp relay. I can't think of the pin out off my head but Google has a bunch of wire diagrams
So I have a 1994 Chevy k1500 5.7 tbi 350 that I'm rebuilding and im wanting to efi swap it, what would I be changing out parts wise do I have to get a whole new wiring harness? And would i have to get a new ecm or does that come with the fitec kit
I JUST WANT TO MAKE SURE I HAVE THIS RIGHT...IF I HAVE THE 700R4 HOW HARD IS THE PROCESS TO MAKE IT ALL WORK? MY TRUCK IS 1992 C1500 WITH THE 305. ALSO....HOW DO YOU RUN THE GAUGES?
Robert G. It worked very well. I never had any issues. I do believe Holley Sniper to be a superior product to Fitech though. For 2 reasons. The Software. And Tech support.
What is controlling your timing do you have that GM HEI distributor hooked up to the fiTech unit? I have the same setup on a 88 regular cab short box 4-wheel drive Silverado. I am using that onboard timing but I don't think it works worth a s***. How is yours wired up
Hey man nice ride, I have a blueprint 350 with same EFI kit. My question is how did you plumb the fuel lines? Are you using stock fuel pump and a fuel command center? If so what did you do with the return line? Thanks man for any info I’m losing my mind on this one
i'm in the process of installing a go street 400 on my 327. i have a taurus fan as well with a volvo relay and a bmw fan temp sensor. i'm ditching the bmw sensor and want the fitech to control the fan. where did you connect the yellow fan wire?
TalibanSlayer I have been asking this same question on all who have installed this kit and no one have answer yet , I even asked the manufacturer, still waiting for a reply.
Chris Nos difference being the 700 is hydraulic controlled. The 60e us electronically controlled. meaning it needs input from the throttle position sensor to function, the 700 does not. which is why i'm asking
TalibanSlayer. depends, I know 94 4l60e needs wheel speed, tach, and throttle position. summit has an adapter for the TPS to go to the factory computer TPS wires. use it to not void the warranty with Fitech. the tach is easy to find, you have a tach wire.wheel speed is already connected to your stock computer.
can i ask how u wired in your switched 12v for the efi, seeing as how u have hei you also need switched 12 volt for that as well so where did you run the wiring for both?
I know you ran an inline fuel pump but was that a have to or will the stock tbi fuel pump deliver enough fuel? I have an 89 camaro with the 305 tbi im going to put a 327 in and would like to use the fitech 400
hello I need your advice, purchase the Fitech efi 600 and fuel command center. the fcc requires a vent line and my mechanical fuel pump has a vent line connected to it. can I tee into the vapor return line running from the mechanical fuel pump and connect the fcc to it?
That's a really good question. I'm honestly not entirely sure. You may try and give their tech support a call. Thanks for asking though. I just don't wanna steer you wrong
did you have to delete the fuel pump in the tank? about to install a fitech on my truck in a few weeks and from reading the instructions it makes it seem like I have to delete it.
I probably should, but no I didn't. I just pulled the fuse so it doesn't get power. I don't think it's causing a restriction either because the fuel pump I have now is super quiet.
that's what I was wondering myself if it'd put the inline under a restriction. Guess that means I'll be going to pull a part and get a fuel pump assembly and modifying it. I'll let yall know how it goes.
sounds good man. When summer comes around I may put an intank Walbro 255 or Vortec pump in and ditch the inline. But got a to do list in the way first.
Thanks for your review, been looking for some, NOW it's April, are you still satisfied with the setup? You drive it each day? I'm considering it on a 5.0 with HEI, headers, Eld. Air Gap
Yes. Daily driven. Actually I believe I've drove it exactly everyday since the install. My fuel economy has improved. But my favorite part is the cold starts. It starts so much easier. And when I was carbed I had a slight hesitation off the line. It fixed that also. I'd recommend it to anyone whos looking at Efi
+Malibu Jak Thanks, that's the MAIN reason why I want to change, ALSO read another review where the fellow didn't have the UNBURNED fuel exhaust smell, did you notice that change also???
dude thats awesome...i have a 1995 TBI 350 and was looking to get a swap done but now that i saw this i might go with this set up. please get back to me with any recomendations or advise on this.
Edgar Cortez If it's just a bone stock build you're working with I would just leave your factory TBI where it is. But if you do go Fitech, my biggest piece of advice is don't use their Fuel command center. Use a nice inline or in tank pump like the Walbro 255 or one that meets your goals. As for timing control I could care less about that also.
Edgar Cortez Just a 350 TBI? A nice set of heads like Vortec for starters, a single plane intake, LS6 valve springs, comp retainers, LT4 Hot cam. Should make for a neat upgrade.
Actually yes. I have a 5.3 in the works as we speak. I've been swamped for time so I haven't made an update video about it but that will be my next one. Thanks for watching :)
No. No hidden MSD box. It's a GM HEI factory style distributor. Walked into O'Reilly and said hey need a distributor for a 79 Malibu with a 350. That's what they gave me and works wonderfully.
Hey man, nice vid. I just picked up an 87 F350 W/ 460-C6 trans. Ive been checking their site and I cant figure out if there is any hickups with using one of their systems and the C6 trans, like kick down connections or whatever. Any thoughts?
Hmm. Not sure man. I haven't worked on many Fords. Does the C6 have something similar to the 700r4 like a throttle valve cable? I bought an adapter for a Holley/Edelbrock carb. It fit right on after some grinding. Maybe Holley makes something similar?
+Malibu Jak Well Holley sells a Kick Down bracket for Ford Autos, but I don't have any experience with these EFI systems. So I wasn't sure if they worked the same.
+AirborneBadass If it has the push style kickdown rod you might need to convert to something like the lokar kickdown cable which pulls the lever on the transmission instead of pushes and attaches to the bottom of the throttle linkage.
I have been investigating do this same set up in my truck. I think i have everything I need except a intake. Does fi tech specify somewhere what they require for a intake or is a stock intake ok?
Q Thompson I don't think I follow you. Unless you have an electronic transmission (93 and up) and want to run a carb, you don't need the Ecu for anything.
Malibu Jak ok! Didn't truly know what was all hooked up to the ECU. Thanks! Have plans to swap heads, cam and intake so the efi upgrade was needed, cheaper than the ls swap.
Benjamin Johnson Use Casper Electronics Breakout Harness for the TPS. This will allow you to take Fitechs TPS signal and send it to your stock ECU so the trans will continue to shift.
Malibu Jak , ok. I'll look into that. As well as look into getting a new chip made for this truck that'd be nice to be able to tie all this together. Thanks.
Ehh hardest? Maybe trying to install push loc fittings when it's 10 degrees outside and the hose is half frozen lol. Nothing was really hard about it. Hot wire, ignition, tach signal, and fuel pump. Then wide band o2, and cts. You're golden
Lol well that's not to bad at all, I'm probably going to get it for my 400 small block. Do you know if the I will have trouble with the kickdown cable/linkage on my turbo 400?
okay cool!!! kickdown linkage when you hit 80% throttle, the carb tells the trans to shift down to increase acceleration. it probably has a more specific name but that's what I was taught to call it.
Being an 88. It didn't really use it for anything except run the engine. I just unplugged what I didn't use like injectors, sensors, etc. And cut the pigtails. You can pull the computer and harness altogether if you want. I'm just lazy.
Okay I have my fitech how would you run the in tank fuel pump 1991 k1500 I am running a 1997 c1500 it has the fuel pressure to run the fitech. and my next project is LS in my v8 Chevy Monza.
Terry Pikaart I was kidding. Sorry. Didn't realize you'd take that seriously. My apologies. Anyway, I knew that it was the IAC valve making that noise. My poor choice of words led to all this confusion with you and everyone else that's made the same comment a thousand times. When I referred to the sound as sounding like a vacuum leak I assumed people would take that as feedback of it sounding like a vacuum leak. Again my poor choice of words left some confusion. That sound isn't normal. It's a byproduct of poor machining of the bore for the IAC valve. Nobody wants to hear a snake hissing over their exhaust. Some time spent with a file to smooth out the sharp edges and turns will fix this issue right up.
After I priced out a 454 TBI, Harness, EBL flash, TBI distributor, map, knock, etc. My total price tag was around $800. That was using what used stuff I could come across. Not new. Didn't seem worth the time nor the effort to do. Especially since I knew from the get go this was an engine I wasn't keeping. This 350 isn't even in the truck anymore. Now if I had all of that. On hand already. Yes that would've been the route I took.
Been running my 30002 FiTech for 3 years now on my daily driver and I absolutely love it. No issues whatsoever.
The hiss you're hearing is the sound of a fairly open idle air control valve. Once the valve shuts, the hiss goes away. My MSD atomic EFI does the same thing. Totally normal!
Ahh I see. I had no idea. Thank you for sharing :)
+Elucidus i would imagine the rpm drops a little bit as well when it closes?
+Rye Bread Yes, the IAC is used for fast idle purposes as well as to maintain curb idle when load is increased(such as when then engine fans or AC is engaged). It also comes into play for anti-stall and other reasons.
i may be running fitech on a weiand 174 set up on a 302, that way i can save some pennies and skip dyno tunning. and have a plug and play set up, roots style supercharger and efi still. cant wait!
+Rye Bread Sounds like fun. I'm running Atomic EFI on a 400ci small block. The biggest improvement vs my carbed setup was in the low and mid-range. Didn't notice much of anything on the top-end, but my QuadraJet was set up pretty well..
You'll still need to figure out where the best fuel and timing curves are for power, but if you have the FiTech controlling fueling and timing things will go a LOT faster - no need to open the carb or play with advance bushings/springs/weights/limiters.
Good luck.
finally I found a video of this.
Meto bro been searching like crazy ❤️
Fergalicious.... best part of the video.
Blake Heiner Lol
How’s fuel mileage?
Thinking of buying this system for my 79 c10. I would like to install the hand held in the ashtray. I am wondering if the hand held has to be turned on each time I drive the truck.
No. You don't even need it.
I just use it for gauges. You could use it for setup. Unplug it. And never touch it again
I know I'm late to the party but I'm looking at the fitech tbi unit and I've got a few questions about your engine.
Do you have anything done to the engine or is it stock. I noticed the perimeter bolt valvecovers so i know the heads aren't factory TBI and probably the whole engine. Is it an otherwise stock 350 engine?
I've got a mild 350 with a set of trick flow heads and a comp 252xfi roller cam. 252/264 advertised, 202/212 @ .050, .550"/.546" lift. It's got a nice wide 113 LSA so the vacuum signal should be stable for self-learning fuel injection. I'm running a Performer Air-Gap dual plane intake with a 650 Holley. Long tube headers and y pipe to single 3" open exhaust.
I'm mostly just checking on driveability of these things with dual plane intakes. I built my truck to have monster torque so i don't want to go to a single plane for the best fuel distribution.
Do you think i should go port injection like you or go with TBI?
Eric Ernst It's completely up to you what you want to do.
No this engine isn't stock. It's actually a GoodWrench crate engine. It's been almost 10 years since I've done it so I don't remember specs of all the stuff I changed. It's around the 220ish area of duration @50. Intake is an Edelbrock dual plane. Fitech fed this engine wonderfully. Fitech is nice but don't be afraid to look at a Holley Sniper either. Sniper has much higher resolution VE and spark tables as opposed to Fitech that interpolates and extrapolates everything between cells.
Get whatever you feel most comfortable with.
HOW MUSH THE HOLD SET UP COST AND DID U CHANGE THE CAM IN IT LET ME NO
This may sound stupid, but I dont see any extra injectors.
I'm going to be swapping the GoStreet 400HP system onto my tbi 454 and on the FiTech site, they have a intake that will work but it appears to need injectors and rails. Are there injectors inside of the FiTech throttlebody somewhere?
This system is their TBI unit.
I believe what you're asking about would be their MPFI unit. I never got to try their MPFI.
Im just adding one to my 93 Silverado . Thanks for the video .
How did you tune the transmission ? Im having a hard time with the shifting .
Nice video on the truck what cables did you disconnect for it to run did you just disconnect the ecm/pcm from the truck harness is because I have a 1989 Chevy 2500 5.7 and I have problems with the wiring is burning the pick up coil in the distributor I thing that is the name and I ve taken the truck to de dealer mechanics, pep boys, and local mechanics and none of them have found the problem
And one mechanic told me to add this the fitech or the Holley how hard is it and can you give a example of what you did
Ferber b I have another video on my channel explaining what I did to make this work.
Believe it's titled TBI to carb conversion.
The way you talked about the hiss on the vid, and not mentioning iac sounded like it was a mystery.. No problem.
Good to hear. Nice truck!
Robert G. thank you
That's a sweet truck man
How did you hook up dizzy to coil? Trying to install this now and need some help. If you can can you plz send me some pics of your dizzy and coil?
The hissing is the idle air control valve compensating for direct after start up idle inconsistency by bypassing air around
the throttle plates
Please refer to the comments below :)
I have one one my 406 and it runs great. Inline fuel pump is loud but it's ok.
What did you hook your pump wire up too? Please get back to me i have a tbi truck and swapped it with the fitech
Taylor Blanchard the stock fuel pump for these trucks is tied to the factory ecm. It turns off the fuel pump when it sees no oil pressure. It's a good safeguard. I'm going to keep that setup when i go fitech from my holley 650 carb. The oil pressure sending unit is on top of the block behind the intake manifold. It's about as big around as a big thumb and maybe 4 inches long.
Hey man it’s been 8 years how’s it been? I hear a lot of pros n cons n I been debating to do this to my k5 vortec 350
Is that a 2 wire alternator? If so did you just hook both wires to the one wire alternator plug on the truck ?
Two or four barrel ? I have a 350 two barrel TBI
What do i need ?
Hey Malibu Jak, I've installed a Fitech on my Chevy 5.7 could. My valves are rattling pretty good so I believe its time to adjust the timing. Could you tell me what all I nned to do with this Setup. I've checked timing before but not when running a Fitech. Is there any wires I need to disconnect prior to clamping on to the number plug wire? Any help will be greatly appreciated.
Lyn Graham If Fitech isn't controlling timing just set timing like normal.
Did you have to do anything to the trans ? My silverado is not shifting properly .
Do you still have your truck?? 👍🏾👍🏾
How much is it for the part just got a 93 k2500 with a 5.7 350 small block and I wanna upgrade
Did you have to remove the old original fuel pump from the tank or will the new pump pull fuel through it? I’m thinking about putting this kit on my 87 TBI 1 ton.
you were lucky to get one that worked. I had two with issues right out of the box. I spent 2,000 bucks trying to get their junk to work. the fuel comand center failed and puked fuel after 2 hours of use, killed the car and left me sitting on the side of the road. I had enough all the fitech junk went on ebay. Went back to Holley, runs great. fitech made no effort to refund any money. Instead they offered a replacement to sell on ebay. F means something in fitech, I let you decide the word I mean....
I'm sorry to hear about your experience.
I help run a group called Fitech Owners Group on Facebook. Ever need help you're welcome to join.
I've heard alot of issues from the units and we've been lucky enough to help get several others back up and running.
Malibu Jak I am no longer a fitech owner as they couldn't get their product to work on my car. I had $3600 into a $1600 plug and play system. So I sold all the stuff and moved on to trying to let everyone know their product isn't really as cheap and easy as they make it sound. I would also hate to have anyone fall into the same trap I did. I bought a power adder unit for a supercharger to get away from the heat and tuning issues of a carb, only to not being able to even drive my car without a tow.....
I understand. Not everyone has the same luck as everyone else.
Out of the current 400 owners in the group with tech questions. 99% of the issues the team have dealt with have been tuning issues. Which will come with any Efi system really. But that other 1% have been failing Ecus, harnesses and what not.
May be that's why I've been so lucky to get my own and several others back on the road because I know basic Efi terminology and such. But Fitech really needs to improve on marketing the product because they've lead people to believe this is a bolt on and go system. When no Efi system truly is.
Once again I apologize for your experience.
No apologies needed. I was told they test every unit before it goes out the door, but I received 2 units with faults. Really, I must have the worst luck ever. What's next lightning? Cody from Fitech had me replacing wires, looking for leaks, replaced ignitions from a 6t to a 6al. Finally I just took the unit off and put my carb back off. The operation manager Mark Ward at Fitech said he would send me a unopened unit and I could sell it to reduce my loss. It sounds to me really shady. They know they have a issue but don't offer refunds or fix the miss marketing of this not plug and play model. It still irritates me when they told me "it works on our test motor and not on yours" then on their own test it was a bad ecu. How is that possible if they truly test every unit?
I know I've heard that also.
I've talked to Cody a few times and he seems to be the only one truly willing to help. It's a shame. Everyone else there just seems more interested in publicity and selling the product.
You still running the Fitech?
So is you factory ECM still connected for timing and is the factory ECM controlling TCC lockup?
So does the old ecm still control all it did before the fitech? What wiring needed to be done? I have an ebl flash system for tuning, do you know if the self tuning system will work with my ebl flash system?
Been a long time, you may not ever see this... you could let the original ECM control timing and knock retard and TCC on/off at the 4 pin on the trans. Could also keep VSS input to the DRAC module for the speedometer. Virtually everything else is out the window. I’m running a EP381 pump at 23psi with vacuum reference on my TBI managed by EBL. Wideband VE learns are the way to go. Just datalog it and let it learn VE from playing those back.
Did you wire that alternator direct to the old harness, I have heard you have to put a resistor inline to use ?
How did you connect your electric Fan? What kind of relay did you run? Thanks
Hey man no problem. I actually wired the low speed through an 80 amp relay. I can't think of the pin out off my head but Google has a bunch of wire diagrams
So I have a 1994 Chevy k1500 5.7 tbi 350 that I'm rebuilding and im wanting to efi swap it, what would I be changing out parts wise do I have to get a whole new wiring harness? And would i have to get a new ecm or does that come with the fitec kit
I JUST WANT TO MAKE SURE I HAVE THIS RIGHT...IF I HAVE THE 700R4 HOW HARD IS THE PROCESS TO MAKE IT ALL WORK? MY TRUCK IS 1992 C1500 WITH THE 305. ALSO....HOW DO YOU RUN THE GAUGES?
700r4 just needs the TV cable adjusted properly.
Gauges will still work. They're independent of the efi.
How is it running now? Thinking of going with Fitech instead of Holly.
Robert G. It worked very well. I never had any issues.
I do believe Holley Sniper to be a superior product to Fitech though.
For 2 reasons. The Software. And Tech support.
What is controlling your timing do you have that GM HEI distributor hooked up to the fiTech unit? I have the same setup on a 88 regular cab short box 4-wheel drive Silverado. I am using that onboard timing but I don't think it works worth a s***. How is yours wired up
Fitech isn't controlling timing on this setup.
It's a factory ready to run distributor.
Is the gas mileage better.?
So what was wrong with the tbi setup 🤷🏻♂️
Hey man nice ride, I have a blueprint 350 with same EFI kit. My question is how did you plumb the fuel lines? Are you using stock fuel pump and a fuel command center? If so what did you do with the return line? Thanks man for any info I’m losing my mind on this one
Can u tell me how to set my cold start on it without having to pat the gas have the fi tech go 8 1200hp one on a sbc 434
Thanks for an honest review.
No problem man :)
does you die when you come to a stop mine just recently started dieing when
stoping
i'm in the process of installing a go street 400 on my 327. i have a taurus fan as well with a volvo relay and a bmw fan temp sensor. i'm ditching the bmw sensor and want the fitech to control the fan. where did you connect the yellow fan wire?
cyrus virus I used Fitech to switch the low side. AC to switch the high side.
what cam do you have in it...
im thinking about putting one on my 1990 k5 blazer
awesome video. i have the same truck just a bit newer(1996). Would this system still work and intall as easy wit ha 4L60e trans ?
TalibanSlayer
I have been asking this same question on all who have installed this kit and no one have answer yet , I even asked the manufacturer, still waiting for a reply.
Rey Perez apparently we would have to get an additional control for the trans.
m.summitracing.com/parts/HLY-534-202/
check this out
Chris Nos difference being the 700 is hydraulic controlled. The 60e us electronically controlled. meaning it needs input from the throttle position sensor to function, the 700 does not. which is why i'm asking
TalibanSlayer. depends, I know 94 4l60e needs wheel speed, tach, and throttle position. summit has an adapter for the TPS to go to the factory computer TPS wires. use it to not void the warranty with Fitech. the tach is easy to find, you have a tach wire.wheel speed is already connected to your stock computer.
Nice Looking truck!
What wheels (Rims) do you have on that truck?
can i ask how u wired in your switched 12v for the efi, seeing as how u have hei you also need switched 12 volt for that as well so where did you run the wiring for both?
The hissing is IAC open for the fast idle..
Terry Pikaart No way. You serious?
Didnt that truck come with fuel injection from the factory?
It did
everything is great... about to go outside and work on the truck..Almost done...
Sweet!! Keep me posted
I know you ran an inline fuel pump but was that a have to or will the stock tbi fuel pump deliver enough fuel? I have an 89 camaro with the 305 tbi im going to put a 327 in and would like to use the fitech 400
No. The factory TBI pump only puts out about 13 psi if you're lucky. The injectors in Fitech are rated at 58 Psi.
Can i use stock tbi distributor with fitech efi? Help me
what cam u have in it
How does it know what the temperature of your engine is to where it can turn your fan on/off?
The coolant temp sensor
+Malibu Jak okay thank you. I have a stand alone adjustable setup I may run. Nobody, not even the company, goes into full detail on installation.
Do you have an automatic? If so, does it make the computer freak out?
hello I need your advice, purchase the Fitech efi 600 and fuel command center. the fcc requires a vent line and my mechanical fuel pump has a vent line connected to it. can I tee into the vapor return line running from the mechanical fuel pump and connect the fcc to it?
That's a really good question. I'm honestly not entirely sure. You may try and give their tech support a call.
Thanks for asking though. I just don't wanna steer you wrong
+Malibu Jak ok thanks alot for the quick response
No problem. I'm sorry that I was no help
did you have to delete the fuel pump in the tank? about to install a fitech on my truck in a few weeks and from reading the instructions it makes it seem like I have to delete it.
I probably should, but no I didn't. I just pulled the fuse so it doesn't get power.
I don't think it's causing a restriction either because the fuel pump I have now is super quiet.
that's what I was wondering myself if it'd put the inline under a restriction. Guess that means I'll be going to pull a part and get a fuel pump assembly and modifying it. I'll let yall know how it goes.
sounds good man.
When summer comes around I may put an intank Walbro 255 or Vortec pump in and ditch the inline. But got a to do list in the way first.
Oh something else I forgot to ask but how many of your dashboard gouges still work
All of them
Thanks for your review, been looking for some, NOW it's April, are you still satisfied with the setup? You drive it each day? I'm considering it on a 5.0 with HEI, headers, Eld. Air Gap
Yes. Daily driven. Actually I believe I've drove it exactly everyday since the install.
My fuel economy has improved.
But my favorite part is the cold starts. It starts so much easier.
And when I was carbed I had a slight hesitation off the line. It fixed that also.
I'd recommend it to anyone whos looking at Efi
+Malibu Jak Thanks, that's the MAIN reason why I want to change, ALSO read another review where the fellow didn't have the UNBURNED fuel exhaust smell, did you notice that change also???
Yes. Exhaust fumes got real old real quick Lol
400 hp kit???
What sort of fuel economy are you getting?
so I'm trying to throw one on a dual carb 85 honda prelude. how will I do that?
What intake
what part of Missouri are u in
did you have to run a return line to the fuel tank or did you plug the Return Outlet? THANKS
Yes you have to run a return line
dude thats awesome...i have a 1995 TBI 350 and was looking to get a swap done but now that i saw this i might go with this set up. please get back to me with any recomendations or advise on this.
Edgar Cortez If it's just a bone stock build you're working with I would just leave your factory TBI where it is.
But if you do go Fitech, my biggest piece of advice is don't use their Fuel command center. Use a nice inline or in tank pump like the Walbro 255 or one that meets your goals.
As for timing control I could care less about that also.
Malibu Jak cool, now i know i cant tune this engine but aside from bolt ons how can i get more power out of it
Edgar Cortez Just a 350 TBI?
A nice set of heads like Vortec for starters, a single plane intake, LS6 valve springs, comp retainers, LT4 Hot cam.
Should make for a neat upgrade.
Malibu Jak cool man, thanks alot
@@jacobdavis1979 what is wrong with fuel command centre
what is the mpg now?, I have the same truck and would only get 13 mpg with the TBI
Only 13? 2wd all stock?
When I had the TBI I was getting 18+.
This engine with Fitech gets around 11.5
Hey Malibu jack will you be doing a 5.3 swap in the c1500. Would love to see it done
Actually yes. I have a 5.3 in the works as we speak. I've been swamped for time so I haven't made an update video about it but that will be my next one.
Thanks for watching :)
+Malibu Jak ok thanks I have a 88 c1500 that I want to do the same
So you're just running the stock ignition and it runs that6 good? No hidden MSD box somewhere?
No. No hidden MSD box.
It's a GM HEI factory style distributor. Walked into O'Reilly and said hey need a distributor for a 79 Malibu with a 350. That's what they gave me and works wonderfully.
Is there anyway you can tell me what linkage I need in gonna do this on my 90 Tbi 350 with 700r4
Chris Sellers you ever find out? I have a 90 witha 700r4 and im putting a crate motor an a fitech on it
Great video as always bud!
Thank you my good sir :)
+Malibu Jak why am I always seeing your vids a month late? Lol let a brother know!! Haha
Is the fuel economy any better? I'm curious. And also, how's the drive ability and cold starts
Economy is a bit better.
The cold starts on the other hand are a huge improvement. Well worth the conversion just for that
Does this get better gas mileage then the carb
after some AFR tuning yes I saw an improvement.
Malibu Jak thanks
What would I need to run the guages and the cruise control on a 93-95 if I drop a fitech unit in with a 700r4 trans instead of the 60e
U ever figure out that to run with 700r4 I was wanting to know the same.on a truck of mine it's 93 tbi
Are you using any of the factory fuel lines from the fuel pump to the throttle body?
No. It's all factory unitl the pump. Then after the pump it's -6 with push loc fittings.
Hey man, nice vid. I just picked up an 87 F350 W/ 460-C6 trans. Ive been checking their site and I cant figure out if there is any hickups with using one of their systems and the C6 trans, like kick down connections or whatever. Any thoughts?
Hmm. Not sure man. I haven't worked on many Fords. Does the C6 have something similar to the 700r4 like a throttle valve cable?
I bought an adapter for a Holley/Edelbrock carb. It fit right on after some grinding.
Maybe Holley makes something similar?
+Malibu Jak Well Holley sells a Kick Down bracket for Ford Autos, but I don't have any experience with these EFI systems. So I wasn't sure if they worked the same.
+AirborneBadass If it has the push style kickdown rod you might need to convert to something like the lokar kickdown cable which pulls the lever on the transmission instead of pushes and attaches to the bottom of the throttle linkage.
+Ian Sather Oh I didn't think of Lokar, I will check that out. Thanks.
I have been investigating do this same set up in my truck. I think i have everything I need except a intake. Does fi tech specify somewhere what they require for a intake or is a stock intake ok?
Fitech uses a 4150 square bore flange.
They claim to work on spread bore but I haven't tried it.
So you used the 4150 square bore flange, and it all seemed to work well?
Yes. It sealed fine and ran very well.
Awesome, thanks for your help!
No problem. Gonna try and do another video soon.
I may add some Fitech stuff.
Is your check engine light on? If not what did you do to keep the lights off on the dash?
Q Thompson No it's not. I pulled the fuse for the ecu.
Malibu Jak so the ECU only runs the throttle body or you only removed a few fuses for certain things
Q Thompson I don't think I follow you.
Unless you have an electronic transmission (93 and up) and want to run a carb, you don't need the Ecu for anything.
Malibu Jak ok! Didn't truly know what was all hooked up to the ECU. Thanks! Have plans to swap heads, cam and intake so the efi upgrade was needed, cheaper than the ls swap.
Hey man!!!! Long time no see or hear...How's everything been...Awesome video...
Everything has been wonderful with magic and adventure! Lol how bout you
i to will be using a 700r4 and already have the correction link, where did you have to grind to get it to work out right?
If you're using Holleys geometry corrector it won't go onto Fitechs linkage. When you try to put it on you will see where it needs to be cut
+Malibu Jak ok good deal i have the eddy link. you notice and gain in mpg?
It's alittle better. You will have to fine tune the AFR tables to get everything perfect
what size trans you have in there
great video,question i just received my efi what inline fuel pump you using thanks
Mines a Bosch pump they recommended using. I don't remember the part number.
But I recommend the Walbro 255
+Malibu Jak that fuel pump loud huh
When summer time hits I'll be using an intank pump
Yes it's annoying lol
+Malibu Jak you should try the ac delco ep381. It should fit in your tank and it's good for up to 450hp. It's a quite pump.
I'm putting fitech on my car i ordered the TV cable and bracket from bowtie out of California for the right geometry
Hey jack, you think FiTech will be compatible with the 4L60E with my 95 z71? Since it's electronic shift.
Benjamin Johnson Use Casper Electronics Breakout Harness for the TPS.
This will allow you to take Fitechs TPS signal and send it to your stock ECU so the trans will continue to shift.
Malibu Jak , ok. I'll look into that. As well as look into getting a new chip made for this truck that'd be nice to be able to tie all this together. Thanks.
Benjamin Johnson
I'm on the same boat, I have a 93 blazer 4x4 and want to get an EFi system and keep my 4L60e
Rey Perez March 1st 2018 they should be coming out with a transmission controller.
so did u get worse mpg with the fitech or better and if so what the before and after mpg? I did really understand some comment below.
Yes. Fitech improved my MPG.
10 with the Edelbrock. 11 or so with Fitech
did you knotice any power differences?
felt like it had alittle more grunt off the line.
Is the 700R4 standard or a different than stock transmission?
Tim Travasos This body style had the 700R4 from 88 to 92. 4L60e onward.
Yes it is the original transmission to this truck. untouched.
How do you get it past swig inspection?
gary pease Not a thing here in Missouri.
What mpg your geting in that setup?
I had this configuration so long ago I can't remember for certain.
I want to say 10 mpg.
what was the hardest part of the install?
Ehh hardest? Maybe trying to install push loc fittings when it's 10 degrees outside and the hose is half frozen lol.
Nothing was really hard about it. Hot wire, ignition, tach signal, and fuel pump. Then wide band o2, and cts. You're golden
Lol well that's not to bad at all, I'm probably going to get it for my 400 small block. Do you know if the I will have trouble with the kickdown cable/linkage on my turbo 400?
kickdown? Nah. Should work good.
okay cool!!! kickdown linkage when you hit 80% throttle, the carb tells the trans to shift down to increase acceleration. it probably has a more specific name but that's what I was taught to call it.
No you're right. I've heard it called passing gear in the past also
What distributor did you use?
Q Thompson Hei from a 79 Malibu.
thanks for the video and also can you tell me did you keep the old computers and if not how did you bypass it
Being an 88. It didn't really use it for anything except run the engine.
I just unplugged what I didn't use like injectors, sensors, etc. And cut the pigtails.
You can pull the computer and harness altogether if you want. I'm just lazy.
Thanks again for the info I am calling Fitech and order one
No problem man glad to help
Okay I have my fitech how would you run the in tank fuel pump 1991 k1500 I am running a 1997 c1500 it has the fuel pressure to run the fitech. and my next project is LS in my v8 Chevy Monza.
How to connect 4l60e transmisión
thank you!
No problem at all :)
sweet vid
Thanks man :)
What type of fuel system are you running?
Walbro 255
Are you running the stock gm tbi distributor?
No.
GM HEI
Why you take the tbi unit off
Mr SS because I went multi port
Malibu Jak do you like that better than the tbi
Woooow..i want to install the holly sniper is it hard?
Joseph Roy Shouldn't be difficult at all. Fuel pump. Lines. 4 wires. Should be good to go.
Yes. Thats why its there and goes away, every time.
Terry Pikaart I was kidding. Sorry. Didn't realize you'd take that seriously. My apologies.
Anyway, I knew that it was the IAC valve making that noise. My poor choice of words led to all this confusion with you and everyone else that's made the same comment a thousand times.
When I referred to the sound as sounding like a vacuum leak I assumed people would take that as feedback of it sounding like a vacuum leak. Again my poor choice of words left some confusion.
That sound isn't normal. It's a byproduct of poor machining of the bore for the IAC valve. Nobody wants to hear a snake hissing over their exhaust.
Some time spent with a file to smooth out the sharp edges and turns will fix this issue right up.
That truck came stock with TBI injection. Why would you use this when you already had it???
Would've.
If I had it.
I honest to God would've used the stock stuff if I had it lol. That's why I think the original comment is so funny. Lol. He just assumed I had it lol.
You could have got at all at a junk yard for 100.00.
After I priced out a 454 TBI, Harness, EBL flash, TBI distributor, map, knock, etc. My total price tag was around $800. That was using what used stuff I could come across. Not new. Didn't seem worth the time nor the effort to do. Especially since I knew from the get go this was an engine I wasn't keeping. This 350 isn't even in the truck anymore.
Now if I had all of that. On hand already. Yes that would've been the route I took.
Just got the go port bbc oval on a 7.4l square crew cab, well see how it goes...... :p