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Old 11-18-2008, 11:29 PM
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eschaider eschaider is offline
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Join Date: Feb 2006
Location: Gilroy, CA
Cobra Make, Engine: SPF 2291, Whipple Blown & Injected 4V ModMotor
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Default Cobra vs Viper

Thanks Greg,

When I modeled the car I used sea level as opposed to the 750 DA which makes your pass all the more impressive. You babied the car down the track and it still gave you an excellent 10.7 at 130. Very impressive!

Your observations about the FE engines coincides with my own observations. I am not entirely sure why the power drop off in an FE car is as great as it frequently appears to be. That type of behavior usually causes me to suspect the fuel system as not being able to keep up with engine demand.

Other than a correction for ambient air temperature in car power levels (after factoring about 15% for drivetrain losses) usually agree fairly well with engine dyno numbers unless there is some other issue. Usually that other issue is fuel delivery.

Good looking car, impressive pass!

Ed

<Begin Edit> p.s. My shifting comments were not to diminish your shifting speed. From the audio it sounded like you were trying not to abuse the trans. Computers are always better than ears and quarter second shifts are fast gear changes.<End Edit>
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Last edited by eschaider; 11-18-2008 at 11:36 PM..
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