Quote:
Originally Posted by gsharapa
Actually wanted Air/Fuel to be a notch higher as when it went over 6,000 it went pretty rich falling to 12 and a bit below...Rob leaned it out a bit this am and ran it again and pretty consisent 13 across the band and it made 530 HP.
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Gary, your car is really done right, congratulations.
However, I have a question about the power figures. Your description says the motor made 681HP which at 1.38 HP/CI is very do-able.
I understand that the chassis dyno figures were compromised by the A/F ratio and the weather conditions. Assuming the car might make an additional 30 WHP (not sure about doing that) and assuming the 681 figure is accurate-that would mean you currently have a 22% drive train loss OR the motor is down 61HP in these conditions from it's dyno rating.
I have not seen such a loss ratio on a Cobra with IRS-my own is close to 17%. It follows that if 17% is accurate for you, your car will make 565WHP with the correct tune and decent weather. I'm uncertain if the weather and jetting will account for a 61 HP improvement.
Any thoughts?