Any one here replace their stock throttle body with a larger one?

 

its not a true 70mil
it tapers in to stock bore size
hasnt this been covered?
do a search
peace

 

If you change the TB, you should port match the intake manifold to get the absolute maximum gains.

 

You wont have to port match with the spoon

 

goes from 70 to 62mm? quite the psuedo ram air effect...anyone use it? does it work?

does spoon sell an intake to match the intake dia?

 

I'm sure it yields a few hp, but is it worth the price? I doubt it.

 

It does make a difference, however not a large one If you had a B16 or GSR it is a nice upgrade instead of getting an ITR TB which is more $$$
I'm Going to do a few different dyno tests with the ones I have in stock.

 

Is it possible to bore the Itr throttle body to 67mm straight through?

 

I have not found anybody that can bore the ITR TB to 67mm throughout. The largest diameter that mine was able to be bored to was 65mm. Vernon at RaVer motor sports did a REAL nice job on it. If any body needs to have their TB bored call Vernon at 559-733-4711.

-kenji

 

I agree with Mike on this. Biggest gains would be on a b16 with cams. I have not tested on an ITR with cams, though and would like to do so. Any takers? I have one of these sitting around. Actually, the price is about what you would pay for a STOCK ITR TB, so its not a bad deal. Contact me if you want to guinea pig this. Of course for doing so, you would get a deal, too. Thanks!