[Diy_efi] formulas for CFM rates

[Alexei Pavlov]

In fact you are searching for the throttle body diam as function
of the HP.

Does anybody has here the A.G. Bell's 'Four stroke perf tuning' book ?
Otherwise you shoud be able to find this kind of info on the web.
I'll try to not forget looking in the Bell's book.

Alexei


> ozimmer at softhome.net wrote:
> 
> It's more complicated than just bore size, you need to consider
> changes in air velocity too.
> 
> I would guess somewhere around 600 CFM for a 75mm throttle body.  But
> again, other things influencing turbulence and air velocity will have
> the biggest impact here.
> 
> Oolan Zimmer
> ozimmer at softhome.net
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