MRL Performance 340, WOW!

stixx said

But it still doesn't take into account that on the dyno it is just the engine, often with an electric water pump etc. Installed in the car there is air cleaner, full exhaust, water pump, alternator and what not. It's like the endless discussion of gross and net horsepower. So it is much more than just 18% loss, realisitically.

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You're correct Stixx, but my problem is the cases where the dyno 2 dyno numbers are more than 1-2% off . IE Dyno 1 says 480 hp and same engine on Dyno 2 says 520 hp that's almost 8.5% difference. I am not saying that's the case here but if you watch this stuff like a hawk like I do you can find many examples. Always watch the tq/ci figure. There are 3 dyno shops in my area and the one that makes the customer the warmest and fuzziest is the busiest. Hint--It ain't mine. J.Rob