Add these numbers to the fixed runner lenght. Short memory Jerry? :)
Max torque at a given RPM is max HP at that RPM.
Paul Lamar

"Weinstock, Rob" wrote:

What are the relevant equations for runner lengths?

Thanks,

Rob

There are some around. I don't have them however. What you see here has been verified
on a dyno. Just copy this exactly and you should get exactly the same HP.

Paul Lamar

Rob,

The velocity of the pulse depends on the temperature of the gases so it 
is a bit hard to calculate it.

The bible on this sort of thing is a book called the "Scientific Design of
Exhaust and Intake Systems. Plenty of formulas.


http://www.bentleypublishers.com


Paul Lamar
 
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