Cutting down an aluminum plate was genius, will look to try that on my next DE build. If you go to a pull apart place and yank one off a maxima it will run you $40 and concepts z sells the harness patch for $40 so it can be done for even cheaper thanks to everyone wrecking their maximas
MI installed the 75 mm throttle body and bored out the plenum to match 75 mm. I also sanded and polished the upper and lower plenum. I did a ECU reset and throttle idle learn However, still have a service engine soon. Notice light. I cle ared that and it came back ten minutes later. Does anybody know what I should try next. The only other thing I did was replace spark plugs withNGK Ruthenium plugs.
I just ordered a $65 adapter harness. Now, if you really want to hard wire it, I'd go hunting in an online junk yard for 2010 3.5 Maxima. They should be able to cut the connector off and you could even buy the used throttle body if you felt so inclined.
I installed the 75 mm throttle body and bored out the plenum to match 75 mm. I also sanded and polished the upper and lower plenum. I did a ECU reset and throttle idle learn However, still have a service engine soon. Notice light. I cleared that and it came back ten minutes later. Does anybody know what I should try next.
Hey, I am planning on upgrading the TB on my VHR G37 and was thinking of purchasing the EPS Big Bore TB but from looking in the pictures, EPS uses the same Hitachi TB used In 2012 Maxima. Although EPS states they use 70 mm TB while searching for the size of the Maxima TB it states as 75 mm. Any insight on this?!
You have 60mm throttle bodies now; so, yes they would be selling you 70mm throttle bodies. The VQ35DE also runs a 70mm throttle body. You could buy them off Amazon or even used ones off eBay. Jumping to 75mm would be too big though unless you're building a custom intake manifold for a high horsepower build. For reference, two 75mm throttles is the same cross sectional area as a single 106mm throttle body which would easily support over 1000 horsepower.
@@jonathanzl2944 Yes, it's the inner diameter. They look the same, but that's just because they're the same throttle body from the same manufacturer in different sizes. They come in 60, 70, and 75mm sizes.
@@jonathanzl2944 I'm not sure what their naming scheme is. They more focus on application, but it may list a size. It isn't a bridge I've had to cross.
Guess i need to do this soon. I got ported collector, lower mani. Heads,5/16 spacer. and poncams along with HR exhaust manis,test pipes megan HR Y pipe and 3inch single exit, trimmed stock HR pistons on Revup rods. paired with a uprev tune. It maybe worth while since i do rev it to 7200rpm on the regular and sometimes bump 7500 if i shift too late.
I’m planning on making my own adapter. Where’d you find the connecter that connects to the stock harness? I’m looking around and the 02 sensors seem to use the same plug.. might go cut one up and and just solder it but need to know for sure..
I got a tuned g37 with 3 inch intakes if I add the 75mm tb would I need couplings to fit can’t find them and will disconnecting the battery affect my tune
@@kev_g37x The cross sectional area of two 75mm throttle bodies would be the same as a 106mm single throttle body. That's enough for an engine with twice as much power and displacement. Plus, transitioning down to the factory plenum would be a real struggle.
Could I get away with doing a throttle relearn or will I have to get a tune? I have port matched my upper plenum, polished the internals to a mirror finish, installed a 4” intake to the 75 mm you suggested, and performed a bolt delete on the internal portion of the upper plenum. Also made my own 1” plenum spacer. Yeah, I’m sure you’re going to say get a tune 🤣
You're definitely going to need a tune, but before you do, I have a couple suggestions. I would compare a 1 inch spacer to a .5 inch spacer as well as a 3.5 inch intake to a 4 inch. I believe a 1 inch spacer and 4 inch intake will be too large.
@@350Z247 why is the least I could do without needing a tune? I obviously can’t undo porting and polishing the upper Plenum, if I just add the throttlebody do you think I could get away with it? I know this is a very subjective question I just don’t want to drop $1000 for a tune right now lol. I thought about having a 2nd ECU, as I can obtain that fairly cheap and drive the vehicle while I’m waiting. Response to above- the reason I was going that route was I have a twin turbo setup I’m installing in the spring. I wanted to push it to the highest limit I could NA before I go down that path. I’m installing them and mounting them in a very new way, that I’ve never seen before. Shooting for 500 BHP, as I want longevity and drivability. Last time I messaged you- I was talking about the break bias between four piston or two piston Brembos in the back. I ended up going with six piston in the front for piston in the back, And upgrading the entire braking system and also adding a brace to the master cylinder with solid plumbing and AN fittings. Your advice has been on point
@@350Z247 Just for experimental purposes, I’m gonna try it both ways on the Dino I think you’re right now that I look at it and I have talked to a few other people that have experience in that department. I honestly now think I need to get it cammed before I move to the twins. My goal is to do it because I wanna do it, I have a new way of doing it and I wanna prove myself I can make it happen. I want it to maintain drivability and also keep reliability. I will never get rid of this car. Everything I’ve done to the car has been 100% the highest quality I could do with my background in aviation. I have gotten started on carbon fiber components like you have, I really think you have an excellent build. Again thank you for your advice I really do appreciate it I will follow it.
The water hose is not necessary; I cut the barbs off. There is an idle re-learn process on a forum somewhere, but I don't remember it. There's a pedal dance.
I made the plate myself, but you can also buy one. conceptzperformance.com/czp-75mm-hitachi-throttle-body-straight-adapter-v2-vq35de-nissan-350z-infiniti-g35-czp-75-adpt-kt_p_32077.php
The VQ35 uses a MAF sensor not a MAP, but no, you just use your stock MAF sensor and wiring. You will need an adapter harness for the throttle body, but that is completely separate. You can reuse your stock intake pipe if you wanted to though I would recommend one in a 3 or 3.5 inch diameter (4 inch is too large).
You can message me on Instagram or Facebook. For the 370Z, I would use the 70mm throttle bodies that are stock for the VQ35DE. They would be a big upgrade over the 60mm size you have stock. 75mm would likely be too big.
@@Bambledamble I think the 75mm would be too big to have two on a motor making less than 400 hp. For a big turbo build it could be good. Two used DE 70mm throttles would still be pretty big but could work.
@@Bambledamble two 70mm throttles are equivalent to one 100mm throttle roughly. That's enough for over 600hp without being a bottleneck. Two 75s would be huge.
I want to get this but I have a tune. Will this affect my tune? I plan on getting a 4inch intake and headers to almost complete full boltons and retune.
It shouldn't no. The car will adapt to it. I would use a 3.5 inch intake; 4 inch is too big for these cars. The bigger diameter can flow more air, but you'll lose a lot of velocity of that air.
350Z247 I saw some a video of a G vs a Z and one had the 3.5 and the other had the 4inch. The 4 inch won but probably different tuners 🤔 idk but I’m just stuck on which one to get
@@DARKWoLF52297 if your tuner is cool with it, you could always do both and just swap out the intake. Unless you're doing cams, over 7,200 rpm, and maybe some head work, I feel like 4 inch will be too big. I think 3.5 can support up to 350hp pretty easy.
@@DARKWoLF52297 yeah the 272 is a good all around cam. I would have a valve job done and some mild porting of the intake and exhaust runners done. Not necessary but they'll compliment each other well.
RUN A A VELOCITY STACK WITH YOUR INTAKE, I have a 3.8 v6 eclipse with a custom sri full exhaust ported 75mm TB vs stock 65mm w a velocity stack trust me running a velocity stack helps A LOT if your have ported Mani and TB I gained 7 peak hp and 10 peak tq with just the velocity stack, hoped I helped
I've never lived in California, but I see no reason why it would effect your emissions. However, to take full advantage of the larger throttle body, you will need a tune which may effect your emissions. It will also be pretty obvious to a cop that the throttle body isn't the original.
The two 60mm throttles on your HR are the same size as one 90mm throttle body which is more than plenty for even a super powerful HR. I wouldn't worry about it until you're running a full race motor or a bunch of boost
@@350Z247 and do you think a 3in tube to a 4in intake filter and 75 mm throttle body should i have new injectors on pump gas and do injectors add hp or just make air to gas ration right
I dont get it why put a bigger one on when there is already a big enouth stock throttle you proberly could tune it to get more air and fuel with a bit of other mods
The stock throttle body is a definite bottleneck, especially after all other normal bolt-ons have already been done. The HR's twin 60mm set up is 50% bigger than the single 70mm; so, I'd say Nissan agreed.
It takes more work to squeeze more air through a smaller hole. Motors are pumps, the easier it pumps the more power. It's not all AFR and ignition timing.
Thank you for explaining the throttle body MOD
Hope it helps!
Cutting down an aluminum plate was genius, will look to try that on my next DE build. If you go to a pull apart place and yank one off a maxima it will run you $40 and concepts z sells the harness patch for $40 so it can be done for even cheaper thanks to everyone wrecking their maximas
Gotta love lightly used parts!
Did you have a vacuum line issue where it sits on top of coil pack 4?
Nice man! I’ve been thinking of upgrading my tb because I want to add a 3 inch intake before tuning
I would recommend a 83 or 88mm intake tube. I have an 88mm and love it.
Always good info thanks bro
MI installed the 75 mm throttle body and bored out the plenum to match 75 mm. I also sanded and polished the upper and lower plenum. I did a ECU reset and throttle idle learn However, still have a service engine soon. Notice light. I cle ared that and it came back ten minutes later. Does anybody know what I should try next. The only other thing I did was replace spark plugs withNGK Ruthenium plugs.
Where did you buy male connector for wiring harness, can't find it anywhere? 😫
I just ordered a $65 adapter harness. Now, if you really want to hard wire it, I'd go hunting in an online junk yard for 2010 3.5 Maxima. They should be able to cut the connector off and you could even buy the used throttle body if you felt so inclined.
Then again, the adaptors harness linked in the description is on sale for $45. I would just do that.
I am in the UK, my question is the 2010 Maxima 75 mm throttle body in the USA the same as the 2010 Maxima in the UK
I am not sure. I would go off of the part number.
Love your channel been watching for a while just sucks more Nissan boyz aren’t that into technical side of things
Thanks man!
I installed the 75 mm throttle body and bored out the plenum to match 75 mm. I also sanded and polished the upper and lower plenum. I did a ECU reset and throttle idle learn However, still have a service engine soon. Notice light. I cleared that and it came back ten minutes later. Does anybody know what I should try next.
Hard to say, but good luck
What plenum manifold do you have installed?
I made it myself. I have a full playlist on it.
Hey, I am planning on upgrading the TB on my VHR G37 and was thinking of purchasing the EPS Big Bore TB but from looking in the pictures, EPS uses the same Hitachi TB used In 2012 Maxima. Although EPS states they use 70 mm TB while searching for the size of the Maxima TB it states as 75 mm. Any insight on this?!
You have 60mm throttle bodies now; so, yes they would be selling you 70mm throttle bodies. The VQ35DE also runs a 70mm throttle body. You could buy them off Amazon or even used ones off eBay. Jumping to 75mm would be too big though unless you're building a custom intake manifold for a high horsepower build. For reference, two 75mm throttles is the same cross sectional area as a single 106mm throttle body which would easily support over 1000 horsepower.
350Z247 From the pics ive seen EPS uses the exact same Maxima TB that is 75 mm. Although EPS states it as 70 mm, which would be a he inner diameter?
@@jonathanzl2944 Yes, it's the inner diameter. They look the same, but that's just because they're the same throttle body from the same manufacturer in different sizes. They come in 60, 70, and 75mm sizes.
350Z247 ahhhh makes sense, hitachi states the size of the TB right? For example it’ll state RME-70 for a 70 mm?
@@jonathanzl2944 I'm not sure what their naming scheme is. They more focus on application, but it may list a size. It isn't a bridge I've had to cross.
Guess i need to do this soon. I got ported collector, lower mani. Heads,5/16 spacer. and poncams along with HR exhaust manis,test pipes megan HR Y pipe and 3inch single exit, trimmed stock HR pistons on Revup rods. paired with a uprev tune. It maybe worth while since i do rev it to 7200rpm on the regular and sometimes bump 7500 if i shift too late.
You would almost definitely benefit from the bigger throttle body with all your supporting mods.
I’m planning on making my own adapter. Where’d you find the connecter that connects to the stock harness? I’m looking around and the 02 sensors seem to use the same plug.. might go cut one up and and just solder it but need to know for sure..
Added a link to the descriptions for others in the future
I got a tuned g37 with 3 inch intakes if I add the 75mm tb would I need couplings to fit can’t find them and will disconnecting the battery affect my tune
Your tune will be intact. Your throttle bodies are 60mm right now. 75 would be way too big. You would be better served by two 70mm throttle bodies.
@@350Z247 dam I already purchased the 75mm
@@kev_g37x The cross sectional area of two 75mm throttle bodies would be the same as a 106mm single throttle body. That's enough for an engine with twice as much power and displacement. Plus, transitioning down to the factory plenum would be a real struggle.
@@350Z247 I am also upgradings the upper and lower manifolds
@@kev_g37x Unless you are making more than 500hp naturally aspirated, they're too big.
Could I get away with doing a throttle relearn or will I have to get a tune? I have port matched my upper plenum, polished the internals to a mirror finish, installed a 4” intake to the 75 mm you suggested, and performed a bolt delete on the internal portion of the upper plenum. Also made my own 1” plenum spacer. Yeah, I’m sure you’re going to say get a tune 🤣
You're definitely going to need a tune, but before you do, I have a couple suggestions. I would compare a 1 inch spacer to a .5 inch spacer as well as a 3.5 inch intake to a 4 inch. I believe a 1 inch spacer and 4 inch intake will be too large.
@@350Z247 why is the least I could do without needing a tune? I obviously can’t undo porting and polishing the upper Plenum, if I just add the throttlebody do you think I could get away with it? I know this is a very subjective question I just don’t want to drop $1000 for a tune right now lol. I thought about having a 2nd ECU, as I can obtain that fairly cheap and drive the vehicle while I’m waiting.
Response to above- the reason I was going that route was I have a twin turbo setup I’m installing in the spring. I wanted to push it to the highest limit I could NA before I go down that path. I’m installing them and mounting them in a very new way, that I’ve never seen before. Shooting for 500 BHP, as I want longevity and drivability. Last time I messaged you- I was talking about the break bias between four piston or two piston Brembos in the back. I ended up going with six piston in the front for piston in the back, And upgrading the entire braking system and also adding a brace to the master cylinder with solid plumbing and AN fittings. Your advice has been on point
@@lukasethan6429 you can use the plenum and throttle body without a tune but the spacer and intake will be way too much for the stock tune
@@350Z247 Just for experimental purposes, I’m gonna try it both ways on the Dino I think you’re right now that I look at it and I have talked to a few other people that have experience in that department. I honestly now think I need to get it cammed before I move to the twins. My goal is to do it because I wanna do it, I have a new way of doing it and I wanna prove myself I can make it happen. I want it to maintain drivability and also keep reliability. I will never get rid of this car. Everything I’ve done to the car has been 100% the highest quality I could do with my background in aviation. I have gotten started on carbon fiber components like you have, I really think you have an excellent build. Again thank you for your advice I really do appreciate it I will follow it.
@@lukasethan6429 Good luck! Keep me posted!
Don't have a 350z..have a 370z but thanks for these cheaper alternatives man
Do you remember exactly how you wired up the harness I’m doing the same upgrade
Link to the adapter harness is in the description.
Do I need to connect the water hose to the body throttle. And how can I do idle relearn ?
The water hose is not necessary; I cut the barbs off. There is an idle re-learn process on a forum somewhere, but I don't remember it. There's a pedal dance.
Do you have the link for the throttle body on Amazon
It's a Hitachi ETB0021. Order wherever it's cheapest.
Do your idle increase from installing this?
No change
Where can i find the adapter plate
I made the plate myself, but you can also buy one. conceptzperformance.com/czp-75mm-hitachi-throttle-body-straight-adapter-v2-vq35de-nissan-350z-infiniti-g35-czp-75-adpt-kt_p_32077.php
Do you need a aftermarket harness for the map sensor if i put this throttle body on my g35?
The VQ35 uses a MAF sensor not a MAP, but no, you just use your stock MAF sensor and wiring. You will need an adapter harness for the throttle body, but that is completely separate. You can reuse your stock intake pipe if you wanted to though I would recommend one in a 3 or 3.5 inch diameter (4 inch is too large).
Does anyone have the identity of the two plugs that are used on the connection cable?
I'm not sure what their source is for the connectors. I would just pay the $60 and call it a day.
Did you cut the coolant lines of the throttle body?
No, I cut them off. They serve no purpose outside countries with brutal winters
Would this work for the 370Z and is their way we can discuss this plan on doing it to mines..
You can message me on Instagram or Facebook. For the 370Z, I would use the 70mm throttle bodies that are stock for the VQ35DE. They would be a big upgrade over the 60mm size you have stock. 75mm would likely be too big.
@@350Z247 so we would need to pick up 2 of those from an old DE. What about 75mm
@@Bambledamble I think the 75mm would be too big to have two on a motor making less than 400 hp. For a big turbo build it could be good. Two used DE 70mm throttles would still be pretty big but could work.
@@Bambledamble two 70mm throttles are equivalent to one 100mm throttle roughly. That's enough for over 600hp without being a bottleneck. Two 75s would be huge.
I want to get this but I have a tune. Will this affect my tune? I plan on getting a 4inch intake and headers to almost complete full boltons and retune.
It shouldn't no. The car will adapt to it. I would use a 3.5 inch intake; 4 inch is too big for these cars. The bigger diameter can flow more air, but you'll lose a lot of velocity of that air.
350Z247 I saw some a video of a G vs a Z and one had the 3.5 and the other had the 4inch. The 4 inch won but probably different tuners 🤔 idk but I’m just stuck on which one to get
@@DARKWoLF52297 if your tuner is cool with it, you could always do both and just swap out the intake. Unless you're doing cams, over 7,200 rpm, and maybe some head work, I feel like 4 inch will be too big. I think 3.5 can support up to 350hp pretty easy.
350Z247 I plan on getting cams. Are the 272 good for NA setup. And what kind of head work would I need for cams?
@@DARKWoLF52297 yeah the 272 is a good all around cam. I would have a valve job done and some mild porting of the intake and exhaust runners done. Not necessary but they'll compliment each other well.
RUN A A VELOCITY STACK WITH YOUR INTAKE, I have a 3.8 v6 eclipse with a custom sri full exhaust ported 75mm TB vs stock 65mm w a velocity stack trust me running a velocity stack helps A LOT if your have ported Mani and TB I gained 7 peak hp and 10 peak tq with just the velocity stack, hoped I helped
Also car made 338 fwhp on 91 pump gas dyno
1. There is a velocity stack earlier in my intake
2. I don't believe for a second that you added over 100 hp to that V6.
What if the wires are not exactly the same colors.
You'll need to look up a wiring diagram for each car
350Z247 tried can’t seam to find anything pertaining to the throttle body wiring, but the pigtail I have has all solid color wires from the maxima.
@@aut0f22a6 I just bought an adapter harness. I never even looked into the wiring diagrams
Is the nwp carb legal, It won’t affect smog correct?
I've never lived in California, but I see no reason why it would effect your emissions. However, to take full advantage of the larger throttle body, you will need a tune which may effect your emissions. It will also be pretty obvious to a cop that the throttle body isn't the original.
So I’m wanting to upgrade my TB, my only question is is there a difference between the hitachi and NWP performance wise?
They are literally the same exact parts; the only difference is the price you pay.
And there both smaller and more expensive than a spectra premium tb that will both on
@@donaldgonzales2896 Do you have a link for this? Their site is awful.
I’m looking to do this on my hr, do you think this would work or beneficial? Thanks
The two 60mm throttles on your HR are the same size as one 90mm throttle body which is more than plenty for even a super powerful HR. I wouldn't worry about it until you're running a full race motor or a bunch of boost
350Z247 thanks!
350Z247 would you recommend the carbon fiber intake manifold for an HR or is that manifold and those throttle bodies enough ?
@@jordanalexander3117 I would just get the ported manifold that Z1 sells. Too complicated to make out of carbon
What plenum are you running there?
It's a custom carbon fiber plenum I made myself. I have a full video series on it here on my channel.
Do you have to get a tune after this install?
Nope; just make sure the battery is disconnected during the swap then do a throttle reset once you're done.
cant find the the throttle body
Try harder dude. Hitachi ETB0021
@@350Z247 thanks just wanted to know the part number saw they had injecter crap and didn't see on yours thanks
@@350Z247 whats the best hand held tool for gringing down the metal in plenum do you think
@@350Z247 and do you think a 3in tube to a 4in intake filter and 75 mm throttle body should i have new injectors on pump gas and do injectors add hp or just make air to gas ration right
@@Skerplord a dremel if you don't have something like an 80 gallon air compressor.
if i install this and a 3.5 intake will i need to get a retune?
The car will start and drive, but yes, a proper tune will be required for safe operation and maximum benefit.
I dont get it why put a bigger one on when there is already a big enouth stock throttle you proberly could tune it to get more air and fuel with a bit of other mods
The stock throttle body is a definite bottleneck, especially after all other normal bolt-ons have already been done. The HR's twin 60mm set up is 50% bigger than the single 70mm; so, I'd say Nissan agreed.
It takes more work to squeeze more air through a smaller hole. Motors are pumps, the easier it pumps the more power. It's not all AFR and ignition timing.
Sounds i super low on this video
Perhaps try headphones, but I can hear it just fine on my phone.
why are you whispering....volume is turned UP 100%. Sounds like, "you can't breathe" while talking in this video...🙄😏🤔
It's a free video man; watch it or don't. Maybe borrow some headphones...
Same thang , wax on wax off 🤔
Millimeter not cm. A grown man would fit through a 4000cm2 hole...
Obviously a simple mistake, but thank you for pointing it out.