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Originally Posted by PRAY
So awesome you guys have the capability to do that. Is the Mainline dyno the one you can roll away? I need to get a dyno.
My thoughts about the discrepancies is that the Industry standard is SAE for Manufactures. So as the motor will sit in the car with all the accessories and emissions and all of that. Most engine dyno's by "shops" are done with an EWP and not much attached to the motor like 4 cats and all of that junk. So there has to be a difference in numbers from the differences in testing procedures.
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No doubt...I remember back in the day a guy with a 04 GTO had a bolt-on setup with a set of AI ported stock castings and stock cam. it made like 390-400. he took the belt off for a Dyno pull and it made around 420. Big difference in power when the engine is not spinning any accessories.