Bigger Throttle Body...???

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07-15-2010, 04:10 PM

#16

Steve Nagata

Racer

Join Date: Aug 2003

Location: Canada

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I noticed a significant hp gain with the TB.
Supporting mods of course.
RS cams, RS intake and exhaust valves, ported polished heads to name a few.

The did the TB after those mods.

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07-15-2010, 04:42 PM

#17

NP993

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Quote:

Originally Posted by Fly911

For the NVR increase from 68mm to 71mm gives a 6% increase in throttle body area, and in theory a 6% increased air flow, that again in theory should give a 6% increase in HP as long as the air/fuel mix is still correct.

This is not how engines work, sorry.

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07-15-2010, 06:11 PM

#18

Rinty

Drifting

Join Date: Apr 2008

Location: Calgary, Alberta

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Quote:

...the guys at 9m noted [a] loss in power...RDS928S

Reminds me of when we were kids, and my neighbour bolted a 450 cfm carb to a small block Chevy or Ford, or something, and the thing ran slower than it before.

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