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Old 03-21-2008, 12:38 PM
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DavidVizard-GFN DavidVizard-GFN is online now
Director of Technical Writing
 
Join Date: Apr 2007
Location: Charlotte, NC
Posts: 776
Quote:
Originally Posted by 1989GTA View Post
I noticed that the crankshafts in the article were not of the aero-wing shape. At the rpm intended would you feel that the aero-wing on the couterbalance weights would add horsepower?

You are right on the aero wing score. That costs more money and we were more interested in having a crank that could take a lot of N2O if needs be. Got a super nice looking Scat crank for the 600 inch BB I am building but the cost was way more than this small block 3.75 stroker. AS far as aero cranks worth our dyno testing has shown that above about 3000 - 3500 rpm differences start to show. At 7500 this can be as much as 6-7 hp for a typical wet sump motor.

DV
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