DIY_EFI Digest V4 #709

[William T Wilson]

On Tue, 21 Dec 1999, DIY_EFI Digest wrote:

> Can someone post or email me the calculation to convert ft/lbs at a given RPM
> into Horsepower - or the other way around.

HP= (RPM * torque) / 5252

> at redline?  After all, smaller venturis are used in carburetors for
> the lower RPM settings, I thought to keep the engine torque up by
> keeping the velocity of the airflow up.

It is a lot like a smaller venturi.  It will increase low RPM torque but
flow restriction decrease power at the high end, which in turn reduces
maximum HP.  It doesn't affect the numerical value of peak torque very
much, just where it occurs.