vq throttle body on qr

axles03ser · 2008-10-21 18:36:25

i was wondering since i have a full vq35 motor torn apart in my garage, does anyone know if the vq throttle body would work if i made a mount to bolt it to the qr intake mani? i know the throttle body plug is the same but thats it.

boogerboy72 · 2008-10-21 18:50:19

wont bolt on. to make it work you need to the throttle plate to close more. this can be acomplished by sevral ways, easiset is to grind some down behind the throttle rest.

nightrider45 · 2008-10-21 20:52:18

yes it will bolt right up if you make a throttle body plate adaptor, someone tried it awhile ago and it worked fine for the first 20mins but then it went into safe mode. why? idk. i guess the ECU didnt like the VQ TPS. But if u increase the TB side then u need to port out the IM side

spare201 · 2008-10-28 18:20:07

If I could find a VQ TB cheap I'd buy one to play with.

nightrider45 · 2008-12-09 19:16:14

bump.. ^^I'm working on it, hopefully i get my vq tb the 20th of this month. All i need is the adaptor to make it fit the QR manifold.

I wonder how and y other ppl failed at making this work. It's pretty straight foward with a lil wiring harness research.

darsondriss · 2008-12-09 19:19:10

its not the wiring thats hard as getting the ecu to adjust to wtf is going on. a qr TB open x* will flow alot less air then a vq TB at x*. so itll probably make it idle weird

nightrider45 · 2008-12-09 19:24:26

edit: the idea.

having X amount of air coming in is excuse, thats like switching a stock intake to a CAI, or from a stock manifold to a real good Flowing/ported IM. Yes more air is gonna come in and should not effect crazy idle unless there's a leak which should not happen.

Last edited by nightrider45 (2008-12-09 19:51:11)

nightrider45 · 2008-12-09 19:29:27

pimpsmurf wrote:
This is what I'm thinking about too. Maybe an adaptor and then a way to shut that sucker. hrms. Megasquirt could battle through it, but your idle fuel consumption would suck ass.

-JNY

thats y tunning it after the mode will be a plus

axles03ser · 2008-12-16 20:33:07

ive been playing around with the vq throttle body and came up with shaving the intake side of the qr intake mani with shaving a qr tbs to the size of the vq throttle body should work we will see

Black04SpecV · 2008-12-17 10:23:59

axles03ser wrote:
i was wondering since i have a full vq35 motor torn apart in my garage, does anyone know if the vq throttle body would work if i made a mount to bolt it to the qr intake mani? i know the throttle body plug is the same but thats it.

I have had a VQ35 throttle body on my car while back... I had a adapter plate, which I sold...

It worked fine, except the idle was gimpy as hell... It would rev by itself from 1200-1800rpm, than back to 1200rpm than it would rev to 1800rpm, and so on...

I couldn't get it to idle right. I tried idle relearn and all those other tricks, nothing worked...

It wouldn't go to safe mode... I had it on my car for few hours...

I believe the gap of the throttle in VQ35 tb is too big, making it idle shitty...

axles03ser · 2008-12-17 14:58:18

ill see what i can come up with and let everyone know if i get it to work right

nightrider45 · 2008-12-17 20:47:23

where did u guys get the adaptor plate from? i'm tring to work on this too.. i got everything i need besides to bolt it on lol.

axles03ser · 2008-12-23 16:57:04

you gotta fab up a mounting plate...im stilling working on it should be done soon... ill let everyone know if it works

spare201 · 2009-01-05 14:14:58

Post up whay your doing so others can work on this as well.

Mg82984 · 2009-01-05 17:47:52

it matched up with an safc II to correct for the amonut of air coming in under X amount of throttle should help the idle out. putting it on without any way of tuning....probably wouldnt do any good at all

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