[Dragncar]

Originally Posted by Formulajones

I've said it before, it's not that difficult at a glance and some quick math to see if a dyno sheet has some excessive correction and/or fudge factor going on, as long as they provide BSFC and LBS per Hour, which is all measured.

In fact there was a sheet posted on the forum here that was in question a while back where someone dyno'd out on the East coast, I think Connecticut or something like that, and it was November. So we are talking sea level conditions and cold weather to start with. Yet the sheet for some reason had something like a 7% correction factor. ?????

I agree to some degree that the track is a great place but the issue with that many times, especially with a street car, is that the car itself is very seldom optimized to take advantage of the new power plant. Whether that be a 500hp engine, 600 or even 700hp.
Everyone on the forum wants a tight converter, everyone wants 3.08 gears, everyone wants a quiet 2 1/2" exhaust system. You just aren't going to see the full potential of the car that way.
To make matters worse, we all deal with different DA conditions around the country and many don't like to use correction factors and they don't know the weight of the vehicle either, which is absolutely essential when comparing track times. I love it when someone brags about how quick they are with minimal parts and we eventually find out it's in a 3000 lbs. car, LOL
Without that data, it's almost pointless. At least with a dyno sheet that has the BSFC and LBS. per Hour fuel data points, we know what we are dealing with.

Fair enough. I would like to dyno one of my engines at some point, it would be a great experience. It would take a lot of effort and money to do it where I live.