[Diy_efi] dyno comparison

[Nick Starai]

So I think we pretty thoroughly discussed the differences between inertial
and brake dyno's. So other then the friction loses, and possibly the
software, I don't see a huge disadvantage to using an intertial OTHER then
the 4 gas exhaust analyzer mentioned several times. (assuming the inertial
has the LOAD CONTROL OPTION). Now what I'm wondering is if it's a function
of law as to why you can't use a 4-gas on an inertial or is it that the
manufacturers simply don't integrate the device into their dyno's. Could
you simply purchase a 4gas analyzer and datalog it while using an
intertial with load control and get the same effect? It just seems to me
that the major advantage of the eddy was the 4gas. Also, I'm referring to
pump gas, so the extra hp you may will extract from a racing engine
on the eddy-brake would be negligable on a street car. (for me at least)

Nick Starai



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