AWD Dyno Issue - 6SpeedOnline - Porsche Forum and Luxury Car Resource

Jan 4, 2012 | 02:36 PM

Sql_pl

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AWD Dyno Issue

Tried to dyno my 996tt today at my friend's AWD dyno (MAHA MSR500) without taking the driveshaft out and it did not work. Rear wheels were spinning and the fronts were standing still or were moving so slow that they could be stopped with a foot. Why is it like that? Is it even possible to dyno a 996tt with AWD components all in? We did not want to risk damaging anything so did not try to go high with rpms or gears...

Jan 4, 2012 | 02:41 PM

TMWTP

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I did it on a Dyno Dynamics AWD dyno. My tuner adjusted the torque bias to 70% rear, and it worked like a champ.

Jan 4, 2012 | 06:02 PM

02turbo996

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The rollers have to be locked together.

Jan 5, 2012 | 08:14 AM

Mark @ AIM Performance

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... or your front diff may already be shot.

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Jan 5, 2012 | 09:25 AM

XLR82XS

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I have a Mustang AWD dyno and have tested multiple 996tt without a problem including my personal 996tt.

Jan 5, 2012 | 09:57 AM

Tim941NYC

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Quote:

Originally Posted by Sql_pl

The MAHA MSR500 is listed as a two wheel dyno. As 02turbo996 said you need to lock the rollers. Your viscous coupling is not doing its job, not like they did a good job anyway.