dyno'd today

I dunno I think the email supports my views throughout this thread, that gear ratio is a facotr that can affect the outcome of a chassis dyno, which I think was the biggest arguing point.

It definately doesn’t support the idea that shorter gears will show more power, but I’m pretty sure that’s application specific, and it’s my guess he’s referring specifically to the Corvette gear swap, since the corvette community is so huge I’m sure they are all very aware of that specific case.

it seems wierd to me that he’d say 4th is always highest, because it’s practically common knowledge in the Honda community that dyno’ing in 3rd on a dynojet will net you higher numbers.

I’m debating whether to take him up on his offer and send him the source files for my 4 runs, I know I can get them from the Dyno shop if I wanted.

Please do send him those files if you can - it would help in explaining why 3rd gear would give out significantly different WHP measurements.

BTW - I did not mean to say that the email you attached proved you wrong.

It seemed everyone eventually agreed that 3rd gear DOES get different results from 4th gear on that particular dyno type, even though it shouldn’t. My understanding of physics is that it SHOULD NOT vary more than a few percent, at most. The Dyno rep was also perplexed about the WHP numbers you gave him – it could be a bug in their software, I dunno. Our arguments at this point are moot and we should really just wait for the Dyno folks’ explanation. :rockon: