It's hard to hit the hammer with best throttle body for a B20, It all depends on how well you can get the air in there in the first place, ie - camshafts and intake manifold
In terms of single throttle design, a well designed/worked manifold with a 68mm throttle and capacity for the motor to breathe that hard is best. Otherwise 64mm could suffice.
well id rather a car that goes fast throughout the whole rev range. And dont B series motors love to breathe?...
If ive slapped in ITR cams what throttle body size?.....
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