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      05-26-2009, 06:02 PM   #278
RPIpower
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Drives: F97 X3M, G80 M3
Join Date: Aug 2007
Location: PA

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Quote:
Originally Posted by gogoevo View Post
Well, unless I'm reading it wrong, RPi claims a 30ft/lbs+ gain in torque. It appears to me that I gained 9?! Please keep in mind I am new to dyno testing and wish to learn. Any truth to the "computer needs to learn" statement?



I will see what I can do.
your computer does not need to learn. All it takes is a few hard pulls on the dyno. On a dynojet, if the straps are not tied down with the same tension, the hp/tq will change. For example, if they tied it down tighter after the exhaust was installed, the gains would be different. Also, on the dynojet, they hit the green button to start sampling or datalogging the acceleration of the dyno drum. How the runs are sampled will vary the graph outcome. That is one of the reasons why we do TONS of runs to develope consistent numbers before we compare them. How does the car feel? It it was only 9wtq, you wouldnt feel that much of a difference.
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