n/a build help

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07-18-2015, 02:16 PM

#21

s2000ellier

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So is it correct to say that generally, the closer to the head the butterfly valve is the smaller the ITB can be?

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08-02-2015, 09:12 AM

#22

Urge

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Quote:

Originally Posted by s2000ellier

So is it correct to say that generally, the closer to the head the butterfly valve is the smaller the ITB can be?

Sorry, I missed this question, but yes.

There is an optimal taper range to the runners and the distance away from the port will determine the throttle size.
Again 1-2" away from the port 50-55mm is best for road racing.
5-6"away from the port 60-65mm is best.

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