Chassis dynos are great tuning aids but....

[maveRick]

I ran across this pretty thorough article on Dyno numbers. The most notable statement is "Chassis dynos are great tuning aids but...."

Besides the dyno info, they have some great tech articles too.


Here's a link to the article(s):

http://www.sdsefi.com/techdyno.htm

[FE_rex]

I wish I had time to respond to this guy's article. There are several contradictions on the write-up. Maybe Otis can point them out. I'll post after I finish my Wed ISO audit

[maveRick]

I DID notice the links he referred to had different numbers (i.e. % loss due from flywheel to tires) but a lot of the stuff I firmly believe.

I watched first hand how a guy toyed with the 'calibration' of the dyno software between runs (after they'd sold the guy a "performace package"). It was total B.S.

Also, I would think that unless ALL the variables were the same on all runs (different days/time of day even), the numbers are not 'true'.

Bottom line: Dynos are more suited (not perfectly) for tuning rather than providing legit h.p./torque numbers.

It's all relative. (you can quote me on that ;) ).

[Timebomb]

A wise man once said: "We Don't Race Dyno's!"

:burnout: