Dynamometer testing is an increasingly popular option
at service and performance shops. Although there are several
different types of dynos,..they are all just tools for the
professional,. and as such,. require expertise and experience
to be fully utilized. Only data from the same make and model
dyno can be compared properly, .and then only if the operator
has applied the proper correction factors accurately. This, and
non-standardized oil temperatures,..is the biggest cause of
widely varying test results.
To de-bunk some popular myths: A dyno test is not nearly as
hard on an engine as a full throttle run thru the gears. (TRUE)
Dyno testing will NOT damage tires any more than normal use will.
(TRUE) You cannot properly set ignition timing on an inertial type
dynamometer.(TRUE) A dyno is a good substitute for road testing
drivability. (FALSE) Peak horsepower on a dyno test is the best
measure of performance. (FALSE)
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