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Old 04-09-2014, 03:01 PM   #23 (permalink)
Jordo!
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Quote:
Originally Posted by Driftomodachi View Post
we all need to dyno on the same dyno you tested on with the same calibrations and settings
There is considerable consistency among dynojets -- no correction is perfect (as I have documented in some detail), but dynojet readings are all based on the rate that the known dimensions of a rotating drum are accelerated, so there are simply fewer fudge factors.

Other than that, I have found good evidence that (on NA cars) SAE corrections can be considered a "lower bound" while STD is more of an "upper bound".

On FI cars, even STD is conservative given that no correction adequately takes into account the actual temperature of compressed air.

Anyway, in short, dynojet numbers are highly consistent; values obtained from other dynos may be equally "correct", but they will be very difficult to compare meaningfully across dynos.
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Last edited by Jordo!; 01-04-2017 at 03:14 PM.
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