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      09-28-2019, 11:00 AM   #270
HighlandPete
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Drives: BMW F11 535i Touring
Join Date: Mar 2007
Location: Scotland, Highland Region

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Quote:
Originally Posted by FIDDYgg View Post
I've only seen one youtube video where they back to back dyno on an AWD dyno and then a RWD dyno with x-delete enabled. The difference was about 25hp greater on the RWD dyno.
So what's happening to the front wheels during the RWD test? Figures mean very little if the front transmission is static. The drivetrain losses those components contribute once rolling, (they are not 'invisible' with a delete) must be calculated and subtracted, to get net gains.
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