SIR TEST RESULTS

[Andy Bettencourt]

This might be considered a dumb question but I'll risk that.

If there is so much riding on this testing and so much effort being put into it, why screw around w/ a chassi dyno? Although engine dynos are harder to get set up initially, they have much better ability to provide consistant numbers because of the environmental controls they can provide.

Get the SIR worked out on the engine dyno where its easy to make the changes, then do some pulls on different chassi dynos to show driveline losses & differences between dynos.

You can test forever, but if you don't cmpare apples to apples you are wasting your time.

Tell me where am I wrong in this idea.

Matt [/b]

Your not wrong Matt. That would be a perfect solution in a perfect world. It just may not be practical at this point.

AB

[gpeluso]

AB,
Don't ge me this perfect world shit. The SCCA should have the means and the know how to perform the test. We are not talking about thousands of dollars, and if we were the SCCA could/should do it. The Club members are paying for the ProRacing, how about some of that money come back to the club level. Some guys are spending $50,000 on cars to race. Even years ago SpeedSource wanted $36,000 for an ITS RX7. If you make rules don't act like its impossible to run tests to prove them. AB, is the SCCA a nickle and dime operation. The SCCA has the ability to reach out to many resources. The engine dyno question is a great one. Hell, put the other competitive car brands on it to show data. You form your opinions from what ever data you have, but in a PERFECT world we would have the apple to apple comparision . Don't act like this is impossible. Are you afraid that you are wrong?

Greg

Your not wrong Matt. That would be a perfect solution in a perfect world. It just may not be practical at this point.

AB
[/b]

AB,
If they have the same HP shouldn't they weight the same ?

Same crank and wheel hp for the BMW and RX-7...why is the BMW 'heavy'? If they are the same hp, do you agree or disagree that the BMW is still as good as the RX-7?


[/b]

[zracre]

AB,
Don't ge me this perfect world shit. The SCCA should have the means and the know how to perform the test. We are not talking about thousands of dollars, and if we were the SCCA could/should do it. The Club members are paying for the ProRacing, how about some of that money come back to the club level. Some guys are spending $50,000 on cars to race. Even years ago SpeedSource wanted $36,000 for an ITS RX7. If you make rules don't act like its impossible to run tests to prove them. AB, is the SCCA a nickle and dime operation. The SCCA has the ability to reach out to many resources. The engine dyno question is a great one. Hell, put the other competitive car brands on it to show data. You form your opinions from what ever data you have, but in a PERFECT world we would have the apple to apple comparision . Don't act like this is impossible. Are you afraid that you are wrong?

Greg


AB,
If they have the same HP shouldn't they weight the same ?
[/b]

good point...we pay for it...why skimp on dyno time...im sure thee are plenty of members willing to offer up their ride for dyno tuning time...IT is a bigger force than most national classes...