uh... I think that you're asking whether or not somebody has bored out their own throttle body. Is that it? I'm pretty sure nobody has, most people just purchase an aftermarket unit.
I've seen a few examples of Betas running custom built intake manifolds along with Honda CRV throttle bodies (I think they're something like 62mm or something?), but the cars were from foreign countries so there's a language barrier there... Would love to get some info from the owners.
y recive my big bore TB and y took out the intake manifold ported machted the best i can but there i noticed there two place you cant bore because of the wall of the intake manifold (hard to explan) any way it work good and growl beter 8D and for the TB shark racing there a passage for other type of engine idle in the TB that y plug that passage because it was open to out side unfilter air not good and MAF dont read it. if you planned to buy juste wacht for that and plug it
[Edited by snow freak 500 on Jan 12, 2006 8:22 PM]
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