[Exist]

I have extra cash and some time and wanted to make some XB ITBS!

Has anyone done it yet?

I was thinking r1/gixxer throttle bodies, have my friend fab up a lil intake plenum and then fix the throttle cables.

I was going to use megasquirt to tune it.
If done correctly it should yield 10 - 15hp... (ya I know box is so slow)

anyone got any insight or maybe share your plans with me if you also wanted to do this =)

[PCH]

Is it for 1NZ?

[Exist]

1st gen, I accidently hit 2nd gen forum side by accident

[PCH]

They will still have to use common air inlet because all the intake air has to be metered by the MAF sensor. So a big air filter housing will need to be fabbed if you are to use stock fuel injection.

[Exist]

well I was debating of just a plenum or just straight cut manifold with tbs at the end and just megasquirt it.

[AAG]

You won't make power any power with ITBs on a 1st gen xB, I wouldn't be surprised if you actually lost power.

[PCH]

I think that's true. There will probably be torque loss at low and midrange. ITBs are usually done on racing cars that stay at 5K+ most of the time.

[sdsnybny]

Its been done already
here is the thread (pics missing but good info) i dont think its for sale and the OG poster has not been on since 07
Gauging Interest: 1nzfe w/ ITB

[PCH]

Yaris:



Or xA, i'm not sure.

[sdsnybny]

It was an xA, Motor FX's and it went almost all they way to production but did not seem to be enough interest.
Too bad it sure was nice to look at

[Exist]

Im not doing it to " race " my scion xb. I already have other cars for that. I just wanted to fab something up since Im bored and thought it might sound better.

3k for a itb kit is alot....
But I think your right about losing power since its already low enough but alot of the corolla guys run itbs on their 20vs etc.

[A_Snell]

stupid question....... what does ITB stand for???

[sdsnybny]

Individual Throttle Body (each cylinder)