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Originally Posted by Pretender
Oh Lord....170 is whp (wheel hp), not engine hp and should not be compared with declared engine hp. Even though 325i has 215hp on paper, it'll probably get below 200hp on the Dyno.
Again, it's been discussed before that even same brand of Dynos don't give the same result.
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What is the efficiency loss on the step and the manual gearboxes? Some of the cars I've dealt with in the past have as much as 25% loss. You need to know this in order to derive bhp from the dyno.
I haven't seen anyone post numbers for a 330i MT for instance. Once I get to 7000 miles on the odo I plan to do this myself. This will be the baseline number I will use in case I ever mod the car which is highly unlikely.