I had so much casting flash on my intake manifold, had to sand smooth as far as I could reach by hand, did the plenum too. Would have ported but I'd rather top swap first. A.R.E. (American racing engines) also makes custom cams and even stroker kits for the 60°s. Looking forward to seeing the progress.
Thanks for this! Especially about running the bigger cams with a computer. Am working on “stroking” an iron 2.8 up to 3.1, and plan on running the larger Comp Cams setup. Finding it very difficult to locate programming options for these older TBI engines, but you’re giving me hope that I’ll see some improvement without for now while I research options.
The GM 3.1 has a lot of potential for performance upgrades believe it or not my 90 Grand Prix after a full top half rebuild with all performance and bored 60 over with a stroker kit no turbo yet I'm pushing a little under 500hp. Wasn't cheap but very well worth it. If anyone has a 3.1 plenum that says intercooled turbo on it the original one that came with the 3.1 I would pay good money for it to be delivered
I swapped my valve and springs from the originals to the valve springs and rockers out of a 95 so that I could get the extra lift. Would I torque those down to the 3.1 original specs or the 3100 specs. And what would be a good cam I can’t seem to find any decent ones I would like a choppier one. The car is ran at higher rpm’s very very frequently as it’s a derby car motor
Is it possible to add 50+ actual streetable HP on the 2.8 with double roller timing chain, headers, up graded distributer, towing and RV CAM, flow bench the head (port match intake and exhaust ports, equlize valve stem heights, largest valves that will fit, 3 angle valve job, roller tip rockers new valve springs etc...)? Do they make a hydrolic roller cam for the 2.8? If the 2.8 can be made to run normally I would be willing to give it a try. Sounds like a $3-4K project.
I just picked up an 89’ 2.7 Z24 Cavalier I’d love to mod at least a bit to get even a bit more than 135. As my old Fiero made 149 from what’s essentially the same engine.
You will gain a little with better flowing exhaust and cold air intake... but most gains will come from internal upgrades like cylinder heads and a camshaft.
My 3.1 v6 in a 1992 Pontiac Grand Prix will run until it gets to operating temp and then spider misfire and stall out. Then it will not start for a while. I changed plugs n wires and camshaft position sensor and a coil pack but still same problem. Any ideas? I’m ready to sell the car because I’m so tired of nothing working.. some say a vacuum leak which could be but I don’t have equipment to figure it out.
Sounds like a problem I had with one of my old Cavaliers, would work fine until it was up to operating temperature the start back firing/missing and would not start if you shut it off for at least 15-20mins... turned out to be a bad coolant temperature sensor, it would short out when up to temp, and read -40 on the scanner. Next time it won't start, try unplugging the coolant temperature sensor, and see if it will start for you! Or just put in a new sensor to rule it out, I don't think that they are too expensive!
Anything to know about on the 2.8s and 3.1s I just bought a 87 celebrity eurosport 2.8 and got it running&driving after 7 years it's all on my channel but it needs a timing chain kit bad cause it hits the cover u can hear the slack in it lol . She has like 235,000 miles . I also need to chnage trans fluid cause it slides into 2nd so that's not good
Wow, surprised it didn't jump if its hitting the cover! You should be able to use the LZ9 3900 timing chain tensioner on it if you wanted... I will have to check out your videos!
@@modeverything1 I bought a 89 celebrity but this one has the 2.54cyl 3speed auto an has 255,000 miles lol an trans kinda slips when gets hot and especially in hot summer days in alot stop and go traffic , car is also on my channel . not sure what im planned to do with the car yet
Throttle body upgrade is probably the simplest to do, or you can do the 65mm like I did in another video. Upgrade the exhaust to a 2.25" or 2.5" free flowing setup. Headers are great if you can still find them, and have someone with HP tuners do a custom tune on the pcm. Other than that your looking at porting and polishing, cam upgrade and turbocharging!
@@modeverything1 I too have a Century mine is an 88 though, what cam would I put in it and what turbos can I put on it, either model years I can salvage parts from or links to places that sell them would be appreciated!
I live in Poland and I have a Pontiac Grand Prix 3.1 LE from 1991. I would like to ask you about two things. There is oil collecting in my intake manifold, and the spark plugs are a strange color, they are not black, but the upper electrodes of the spark plug are white. When the engine is hot, it shakes slightly. Ignition coils, cables, plugs are new. I also installed a new timing chain. Compression on the cylinders is equal and amounts to 190 psi. When the engine is very hot and has been left for about 20 to 30 minutes, it runs erratically after starting. After 10 seconds it calms down and everything is fine. If my stop is shorter, for example 10 minutes, then everything is fine. Could this be a problem with the piston rings? I'm asking because after removing the PCV valve from the valve cover, the engine smokes a lot from this hole. If the valve is installed, everything is fine. I also checked the vacuum pressure on a warm engine. My meter read -17 inHg. I will be very grateful for any help. Greetings from Poland. Adam.
@modeverything1 Hello. I also replaced the ignition module, no difference :(( What should be the ignition advance angle at idle speed and a hot engine? I have another question about fuel injectors, because the original ones for the 3.1 LH0 engine have ...888 at the end of the serial number and I installed injectors from 2.8 engine, with the number ending ..536. Everyone writes that these injectors are interchangeable, but is it really so? The engine still shakes at idle, or maybe the fuel dose is too low?
I have a 1987 S10 Blazer 4X4 2.8 auto. I think 135HP 135TQ. 62K actual senior citizen garage kept Miles. It was an estate sale vehicle. Runs like new, BUT It is slower than a riding mower. How much HP can you get out of it? and would you do the work for me (I will pay for your time).
All depends on how much money you want to spend and how much power you want. You can get more power from the iron head 2.8 like you have but for same money you can swap to a 3400/3500 and have more power! Unfortunately I have too many projects on the go for this year to keep me busy lol
@@modeverything1 I have been told the 3.4 is as close to a drop in as you can get. I was also told there are popular hationwide builders that will do some mods (cam and head work) as part of the order for the motor. If I can source a built remanufactured 3.4 would you do the swap.
Depends on the year of the engine, but pretty much all the same things you can do on a 3400 in a Grand Am or Alero. PCM tuning helps alot, headers, exhaust, Throttle Body (56mm or 65mm). Then from there you can get into the engine with porting heads/intakes, and installing a performance camshaft!
Mod Everything engine year is 2003, been doing a lot of research for my 2003 Chevy Malibu, I’m not sure what pcm tunes to get and headers are quite hard to find especially for the tight fits
If I was going to do a budget set up for 300-350hp I would use a Ebay/Amazon gt3582 turbo, late 90s 3100 w-body exhaust manifold with a custom crossover or 2 front 3500 g6/Malibu manifolds. Then you would need larger injectors, pcm tuning and a intercooler! *little more involved than that but it gives you a start!
@@modeverything1 thanks for the nod in the right direction man 👍 time to hit the scrapyards. Anything else helpful I could rip from one of those g6s? Asking cause I’ve seen about a dozen or two of them in town at parts yards and I do need an ac compressor😅
Springs are the same from 1994/5 and up 3100/3400. Also the same on the non vvt 3500 (LX9) as for the valves 3500 LX9's are the best "drop-in" OEM but the valve seats will need to be cut to match the larger intake valves!
i can't imagine paying all that money for extrude honing and then still having to touch em up by hand. i was expecting a lot nicer results from the extrude honing but you can still see casting lines and everything.
They looked awesome in 2002-2003 when I first saw them, but I was just getting into performance on these engines. I believe they probably could have done another pass through with the abrasive, but I don't think its cheap, and I don't think it would have done much better.
The only thing you would be able to do on an iron head carb setup is use the better exhaust manifolds. Its been a long time since I have looked at the iron head stuff... but you may have to elongate a couple of holes on the manifolds to get them to line up correctly. You can do some porting on the heads but even after porting they are only slightly better than a stock 2.8/3.1 head.
What transmission do you have now? 3spd or 4spd? I'm not to too sure on what is a direct bolt in but you could upgrade to a 4t65e or a 4t65e-HD if you are planning over 300hp!
@@modeverything1 not positive. But I believe it's the th125. Numbers on the the top of the bell housing are 739. Just looking to be able to tow my boat and trailer. Not sure on the weight of that until I get to the scrap yard. 18ft fiberglass center console. Dual axle homemade trailer. I can pick the tongue up with a bit of effort.
I would put a good size external cooler on it and try it. The 3t40 in my old lumina took a beating almost daily behind a 3500, and I loaded It up with parts for swap meets several times!
@@modeverything1 ok. I'll get it to the scale first. If it's under 2000 lbs I'll give it a try. Just not sure on strength of the transaxle. I just bought it. The car only has 105,000 on it and I just put a Cutlass engine into in with 98,000 miles. So the engine should be ok at least especially if I do a few of the upgrades like the injectors. I couldn't quite hear clearly but would the older 3.8 injectors fit also?
Yes you can swap to 3100/3400 heads but you have to use the matching intakes to the heads. The ports don't line up with the 3.1 heads. Push rods are also required and usually custom. I will try to do a video explaining this soon!
It is especially with a cam upgrade. You can use any 3400 top end, the only issues would be with the egr valves being different. Someone used to make egr adapters but they haven't made them in years.
I can make a little plate and delete the egr all together but that's crazy if your saying I can run a idk 2000 3400 top end on my 94 3.1 engine that's awesome n prolly worth doin gotta look into the push rods and how to measure them will be waiting for your videos
Ah even better then so I can find like a 2005 3400 sweet but the push rod thing you mentioned will be the confusing part im shocked I can use such new stuff on a old block
Would the 3.5 mate up to a 5speed manual? I have a 91 S10 it's a 2.8 2wd and it threw a rod thought about a 4.3 thought about a 305-350 but everyone does that haha
Yes it will bolt up but will need custom mounts, and some other work. There is a great write up on thirdgen.org for swapping a 3500 into a firebird/Camaro/RWD it should help lots! www.thirdgen.org/forums/v6/719344-3500-swap-how.html The 3.5/3.9 LZ4/LZ9 can be done too but require a bit more work due to the vvt.
@@modeverything1 I know it lol I didn’t think about the 3.4 until after. If I can’t find one for a reasonable price I’ma cam the 2.8 and put it back in until I can. I’ve been watching a lot of your vids and I’m m becoming inspired to build a 3.4 for sure.
@strange_waverly you could always get a 3.1/3.4/3100/3400 crank and 3.1 rwd pistons to put in the 2.8 block. That would at least give you some more torque
There is lots that you can do! I would start by making sure the tune up stuff is all good, spark plugs/wires, fuel filter... then look into higher flowing exhaust and air filter. After that you're moving into the engine with upgraded camshaft, cylinder heads, intake manifolds, throttle body... After all of that you will want to look into getting the PCM recalibrated for the improvements. Even if you just do exhaust and air filter a performance chip/ecm recalibration would help!
N/A with cam, ported iron heads, headers and throttle body upgrade you could probably get around 200 crank hp without going too crazy. If you went turbo you would be 240hp+. If you wanted to swap to 31/3400 heads and intakes you would pick up at least 25hp from the start before doing anything else!
There are a few things you can do, just depends how much you want to spend. Check out the v6 section on thirdgen.org forms, you will find lots of information and can see what kind of results you can expect from certain mods! Hope this helps for now, I may try to do some videos on the iron head engines down the road.
These engines were great on gas when they came out in the 80/90's, but won't be as good as a newer modern 4cyl. I found that they do great on the highway, but not as good in the city.
![Felix "Unfair" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/Oswujxm2Ag0/mqdefault.jpg)
Hate every car that these went in, but BRILLIANT engines that have a cool sound.
You hate fbodys?
Smoothe rev
I love the 2.8-3.1 engine family. Very underrated!
My man just gave me a reason to keep my spare old 2.8!
I had so much casting flash on my intake manifold, had to sand smooth as far as I could reach by hand, did the plenum too. Would have ported but I'd rather top swap first.
A.R.E. (American racing engines) also makes custom cams and even stroker kits for the 60°s.
Looking forward to seeing the progress.
Z24 3.1 ans 2.8s were pretty impressive little cars I remember them beating supercharged 3.8ls
Thanks for this! Especially about running the bigger cams with a computer. Am working on “stroking” an iron 2.8 up to 3.1, and plan on running the larger Comp Cams setup. Finding it very difficult to locate programming options for these older TBI engines, but you’re giving me hope that I’ll see some improvement without for now while I research options.
The GM 3.1 has a lot of potential for performance upgrades believe it or not my 90 Grand Prix after a full top half rebuild with all performance and bored 60 over with a stroker kit no turbo yet I'm pushing a little under 500hp. Wasn't cheap but very well worth it. If anyone has a 3.1 plenum that says intercooled turbo on it the original one that came with the 3.1 I would pay good money for it to be delivered
I swapped my valve and springs from the originals to the valve springs and rockers out of a 95 so that I could get the extra lift. Would I torque those down to the 3.1 original specs or the 3100 specs. And what would be a good cam I can’t seem to find any decent ones I would like a choppier one. The car is ran at higher rpm’s very very frequently as it’s a derby car motor
Is it possible to add 50+ actual streetable HP on the 2.8 with double roller timing chain, headers, up graded distributer, towing and RV CAM, flow bench the head (port match intake and exhaust ports, equlize valve stem heights, largest valves that will fit, 3 angle valve job, roller tip rockers new valve springs etc...)? Do they make a hydrolic roller cam for the 2.8? If the 2.8 can be made to run normally I would be willing to give it a try. Sounds like a $3-4K project.
2.8 iron head? Or 2.8 aluminum head Gen II? Its possible, but you will probably need more cam than an RV spec.
I just picked up an 89’ 2.7 Z24 Cavalier I’d love to mod at least a bit to get even a bit more than 135. As my old Fiero made 149 from what’s essentially the same engine.
You will gain a little with better flowing exhaust and cold air intake... but most gains will come from internal upgrades like cylinder heads and a camshaft.
@@modeverything1 fair enough
Just changing the muffler and porting the plenum made a good difference on my old 2.8 RS Cavalier. Would have been pretty quick if I ported the heads!
My 3.1 v6 in a 1992 Pontiac Grand Prix will run until it gets to operating temp and then spider misfire and stall out. Then it will not start for a while. I changed plugs n wires and camshaft position sensor and a coil pack but still same problem. Any ideas? I’m ready to sell the car because I’m so tired of nothing working.. some say a vacuum leak which could be but I don’t have equipment to figure it out.
Sounds like a problem I had with one of my old Cavaliers, would work fine until it was up to operating temperature the start back firing/missing and would not start if you shut it off for at least 15-20mins... turned out to be a bad coolant temperature sensor, it would short out when up to temp, and read -40 on the scanner.
Next time it won't start, try unplugging the coolant temperature sensor, and see if it will start for you! Or just put in a new sensor to rule it out, I don't think that they are too expensive!
Anything to know about on the 2.8s and 3.1s I just bought a 87 celebrity eurosport 2.8 and got it running&driving after 7 years it's all on my channel but it needs a timing chain kit bad cause it hits the cover u can hear the slack in it lol . She has like 235,000 miles .
I also need to chnage trans fluid cause it slides into 2nd so that's not good
Wow, surprised it didn't jump if its hitting the cover! You should be able to use the LZ9 3900 timing chain tensioner on it if you wanted...
I will have to check out your videos!
I watch both of you guys’ videos, good shit
@@modeverything1 I bought a 89 celebrity but this one has the 2.54cyl 3speed auto an has 255,000 miles lol an trans kinda slips when gets hot and especially in hot summer days in alot stop and go traffic , car is also on my channel . not sure what im planned to do with the car yet
I have a 05 Buick century & I was wondering what could I do personally to make my car faster ? With 3.1L v6
Throttle body upgrade is probably the simplest to do, or you can do the 65mm like I did in another video. Upgrade the exhaust to a 2.25" or 2.5" free flowing setup. Headers are great if you can still find them, and have someone with HP tuners do a custom tune on the pcm. Other than that your looking at porting and polishing, cam upgrade and turbocharging!
@@modeverything1 preciate it 😎
@@modeverything1 I too have a Century mine is an 88 though, what cam would I put in it and what turbos can I put on it, either model years I can salvage parts from or links to places that sell them would be appreciated!
So whats the total hp an tq gains after all the mods?
I live in Poland and I have a Pontiac Grand Prix 3.1 LE from 1991. I would like to ask you about two things. There is oil collecting in my intake manifold, and the spark plugs are a strange color, they are not black, but the upper electrodes of the spark plug are white. When the engine is hot, it shakes slightly. Ignition coils, cables, plugs are new. I also installed a new timing chain. Compression on the cylinders is equal and amounts to 190 psi. When the engine is very hot and has been left for about 20 to 30 minutes, it runs erratically after starting. After 10 seconds it calms down and everything is fine. If my stop is shorter, for example 10 minutes, then everything is fine. Could this be a problem with the piston rings? I'm asking because after removing the PCV valve from the valve cover, the engine smokes a lot from this hole. If the valve is installed, everything is fine. I also checked the vacuum pressure on a warm engine. My meter read -17 inHg. I will be very grateful for any help. Greetings from Poland. Adam.
Hello! Did you happen to replace the ignition module too or just the coils?
@modeverything1 Hello. I also replaced the ignition module, no difference :(( What should be the ignition advance angle at idle speed and a hot engine? I have another question about fuel injectors, because the original ones for the 3.1 LH0 engine have ...888 at the end of the serial number and I installed injectors from 2.8 engine, with the number ending ..536. Everyone writes that these injectors are interchangeable, but is it really so? The engine still shakes at idle, or maybe the fuel dose is too low?
I have a 1987 S10 Blazer 4X4 2.8 auto. I think 135HP 135TQ. 62K actual senior citizen garage kept Miles. It was an estate sale vehicle. Runs like new, BUT It is slower than a riding mower. How much HP can you get out of it? and would you do the work for me (I will pay for your time).
All depends on how much money you want to spend and how much power you want. You can get more power from the iron head 2.8 like you have but for same money you can swap to a 3400/3500 and have more power! Unfortunately I have too many projects on the go for this year to keep me busy lol
@@modeverything1 I have been told the 3.4 is as close to a drop in as you can get. I was also told there are popular hationwide builders that will do some mods (cam and head work) as part of the order for the motor. If I can source a built remanufactured 3.4 would you do the swap.
All depends on where you are located and if you can wait until next spring/summer...
I have a 3100 in a Chevy Malibu, what can I do to be improving it
Depends on the year of the engine, but pretty much all the same things you can do on a 3400 in a Grand Am or Alero. PCM tuning helps alot, headers, exhaust, Throttle Body (56mm or 65mm). Then from there you can get into the engine with porting heads/intakes, and installing a performance camshaft!
Mod Everything engine year is 2003, been doing a lot of research for my 2003 Chevy Malibu, I’m not sure what pcm tunes to get and headers are quite hard to find especially for the tight fits
@@JuyBaba Go to the junkyard and try to pull the top end off of a similar year 3100 to get a feel for it. Then start porting to get a feel for it. Etc
@@modeverything1 what's pcm tuning could I contact you somewhere n learn about this 😅 I really wanna make extra hp out of that motor 😂
Any fitment advice/ part selection for 02 3100 in a Malibu? I’m looking to turbo eventually if that’s possible
If I was going to do a budget set up for 300-350hp I would use a Ebay/Amazon gt3582 turbo, late 90s 3100 w-body exhaust manifold with a custom crossover or 2 front 3500 g6/Malibu manifolds. Then you would need larger injectors, pcm tuning and a intercooler! *little more involved than that but it gives you a start!
@@modeverything1 thanks for the nod in the right direction man 👍 time to hit the scrapyards. Anything else helpful I could rip from one of those g6s? Asking cause I’ve seen about a dozen or two of them in town at parts yards and I do need an ac compressor😅
I'm goin to junk yard tomorrow what year for valve springs and valves themselves
Springs are the same from 1994/5 and up 3100/3400. Also the same on the non vvt 3500 (LX9) as for the valves 3500 LX9's are the best "drop-in" OEM but the valve seats will need to be cut to match the larger intake valves!
Hey hey I'm actually building a 90 cavalier z24 but I'll be doing a turbo add on u got any extra parts for.3.1
What kind of parts are you looking for? I have some stuff kicking around lol
send me an email modeverything1@gmail.com
When r u going back to the twin turbo 260 oldsmobile, when is the next video
Next video won't be for a few more weeks, just got back to work so I should be able to weld up the gas tank soon!
i can't imagine paying all that money for extrude honing and then still having to touch em up by hand. i was expecting a lot nicer results from the extrude honing but you can still see casting lines and everything.
They looked awesome in 2002-2003 when I first saw them, but I was just getting into performance on these engines. I believe they probably could have done another pass through with the abrasive, but I don't think its cheap, and I don't think it would have done much better.
Can some of these mods be done to a FWD HO Carbie ??
The only thing you would be able to do on an iron head carb setup is use the better exhaust manifolds. Its been a long time since I have looked at the iron head stuff... but you may have to elongate a couple of holes on the manifolds to get them to line up correctly. You can do some porting on the heads but even after porting they are only slightly better than a stock 2.8/3.1 head.
@@modeverything1 would there be anything that could be done with the intake on the carbie ??
Think Edelbrock made an Intake manifold for them years ago, but they are getting hard to find now. IIRC it was setup to run a small 4bbl carb!
@@modeverything1 it would be nice to wake the old H.O. up. 130 HP ain't enough. Lol.
I have a caddy 2.8l 2007 and I want atleast 300whp or 400whp Wht should I do
Turbo or supercharger would be the easiest way to get there! I don't know too much about those engines to give you an exact parts list.
I have a 95 buick century special wagon with the 3.1. is there and upgrade for the transmission? Will other trans bolt in?
What transmission do you have now? 3spd or 4spd? I'm not to too sure on what is a direct bolt in but you could upgrade to a 4t65e or a 4t65e-HD if you are planning over 300hp!
@@modeverything1 not positive. But I believe it's the th125. Numbers on the the top of the bell housing are 739. Just looking to be able to tow my boat and trailer. Not sure on the weight of that until I get to the scrap yard. 18ft fiberglass center console. Dual axle homemade trailer. I can pick the tongue up with a bit of effort.
I would put a good size external cooler on it and try it. The 3t40 in my old lumina took a beating almost daily behind a 3500, and I loaded It up with parts for swap meets several times!
@@modeverything1 ok. I'll get it to the scale first. If it's under 2000 lbs I'll give it a try. Just not sure on strength of the transaxle. I just bought it. The car only has 105,000 on it and I just put a Cutlass engine into in with 98,000 miles. So the engine should be ok at least especially if I do a few of the upgrades like the injectors. I couldn't quite hear clearly but would the older 3.8 injectors fit also?
@@modeverything1 or what was that third injector you mentioned in the video
Are there any engines you can swap the lower intake with and then heads etc or just port and polish
Yes you can swap to 3100/3400 heads but you have to use the matching intakes to the heads. The ports don't line up with the 3.1 heads. Push rods are also required and usually custom. I will try to do a video explaining this soon!
Hmm I'm sure the power increase would be 100% worth it but finding a 3400 that's a 1994 or 1995 may be hard to do unless the newer 1 will work
It is especially with a cam upgrade. You can use any 3400 top end, the only issues would be with the egr valves being different. Someone used to make egr adapters but they haven't made them in years.
I can make a little plate and delete the egr all together but that's crazy if your saying I can run a idk 2000 3400 top end on my 94 3.1 engine that's awesome n prolly worth doin gotta look into the push rods and how to measure them will be waiting for your videos
Ah even better then so I can find like a 2005 3400 sweet but the push rod thing you mentioned will be the confusing part im shocked I can use such new stuff on a old block
Would the 3.5 mate up to a 5speed manual? I have a 91 S10 it's a 2.8 2wd and it threw a rod thought about a 4.3 thought about a 305-350 but everyone does that haha
Yes it will bolt up but will need custom mounts, and some other work. There is a great write up on thirdgen.org for swapping a 3500 into a firebird/Camaro/RWD it should help lots!
www.thirdgen.org/forums/v6/719344-3500-swap-how.html
The 3.5/3.9 LZ4/LZ9 can be done too but require a bit more work due to the vvt.
I had a 82 S10 wanted to install a Supercharger 3.8 Buick motor in it. The Gen II had 260 hp.
I have a 1991 Isuzu trooper with a 2.8l v6. It’s slow going up hills. I need some help
Is it still stock? A camshaft upgrade would probably be what I would do.
@@modeverything1 I’m trying to find. 3.4 to go in it otherwise I believe a cam will do it
I only suggested the cam in case you were not interested in an engine swap. A 3.4 with a cam would be even better!
@@modeverything1 I know it lol I didn’t think about the 3.4 until after. If I can’t find one for a reasonable price I’ma cam the 2.8 and put it back in until I can. I’ve been watching a lot of your vids and I’m m becoming inspired to build a 3.4 for sure.
@strange_waverly you could always get a 3.1/3.4/3100/3400 crank and 3.1 rwd pistons to put in the 2.8 block. That would at least give you some more torque
Question: I'm not a racing fan but I have a 86 pontiac fiero stock but I want to stay with the same engine what can I do to it to improve hp
There is lots that you can do! I would start by making sure the tune up stuff is all good, spark plugs/wires, fuel filter... then look into higher flowing exhaust and air filter.
After that you're moving into the engine with upgraded camshaft, cylinder heads, intake manifolds, throttle body...
After all of that you will want to look into getting the PCM recalibrated for the improvements. Even if you just do exhaust and air filter a performance chip/ecm recalibration would help!
@@modeverything1 how much power could it take with it all said and done? I also have a 2.8 V6 surprising I know
N/A with cam, ported iron heads, headers and throttle body upgrade you could probably get around 200 crank hp without going too crazy. If you went turbo you would be 240hp+. If you wanted to swap to 31/3400 heads and intakes you would pick up at least 25hp from the start before doing anything else!
@@modeverything1 I got a 1986 Pontiac Firebird with the 2.8 mpfi how much horsepower or faster I can make her run
Is it possible to put 3100 or 3400 heads on a 3.1?
Yes it is but requires a few things to be done in the swap like custom length push rods. I will be putting together a video explaining this swap soon!
Backyard youtube machinists
Ay how can I make my 2.8 mpfi in my 1986 Pontiac Firebird faster
There are a few things you can do, just depends how much you want to spend. Check out the v6 section on thirdgen.org forms, you will find lots of information and can see what kind of results you can expect from certain mods! Hope this helps for now, I may try to do some videos on the iron head engines down the road.
those outdated tech engines even for the 90s, with push rods.. just gas guzzlers
Did you have a 2.8 or a 3.1?
@modeverything1 i had a cuttlas ciera 3.1 in mexico... gas is too expensive here in mexico,, had to sell it
These engines were great on gas when they came out in the 80/90's, but won't be as good as a newer modern 4cyl. I found that they do great on the highway, but not as good in the city.