996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Dyno Shredder - DIFF ? and I am a Dufus

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Old Apr 28, 2014 | 12:41 PM
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Originally Posted by group.america
King james - I got my car back from my mate's garage today and jacked it up, both front wheels spin ok with no resistance so it it probably not the whole diff... but there is definitely some metal running around down there somewhere.......

I have one of the best guys from here I am taking it to this week.

Also, I was the 1st car at the dyno that day and was there early and watched them set up the dyno for AWD, TOLD THEM it was AWD with a predominance or rwhp and only 5-40% power to the front wheels. Anyway, they had to move the front roller back by unlocking it from the position it was in to fit the wheel base of my car and then locked it (I assume)... once again I cannot tell if both the front and back were spinning at the same speed..... and as it was my 1st ever dyno I woudnt know sheet from shinola...

BTW a few guys from here USE that same DYNO as I have seen their dyno sheets posted here and on other websites...

If I posted the only dyno run that went through it looks quite weird... anyway as you said I will not be going back


The diff is toast and based on that I'm almost 100% certain they ran the dyno uncoupled. Moving the dyno for the wheel base, and coupling the rollers so they have to spin together 100% are two totally different things. All they have to do is overlook it and boom goes the diff. Good news is your trans is fine.

So you either go RWD now, or put in a new diff.
 
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