Anyone got any views / first hand experience of non OEM diffs for a 996 GT2 used solely on the road ?

The OEM diff (with both OEM and cup plates) just isn't working well for me, its locking action is too harsh and too early under normal road driving.

Part of the issue is the sheer grunt of the engine causing the ramps to open and effectively lock the diff with the slightest application of the throttle. Pressing on its not too bad, but the diff dominates the car during normal road work.

 

I had a guards put in my "GT2 Converted" 996TT. I had it set up to 80/20 and had no issues on the street pushing over 650BHP.

Mike

 

I'd also like to know this as I want to change out my diff over winter but don't know which way to go.
Does anyone have any experience with carbonetics? I was told these are very good but don't know anyone who has tracked one a lot, so not sure on reliability and durability etc
Thanks

 

You guys should ping Matt from GT Gears. He is on this site. He can give you the skinny on a number of differential options.

 

If I was to choose alternative I would look at GT Gears.

 

Guard GT2 FTW!

 

Either Guards, or PMNA.
Stock LSD is worthless, I wonder how you feel it's too aggressive.

 

Sounds like you need some custom ramping and/or preload setup to alleviate the early locking action. I too would strongly suggest contacting Matt at Guard. You sound like you know what you're looking for and I think he'd be a good match for your needs. He's a magician with diffs....

 

+ Matt at Guard

 

Many thanks for all your answers.

We've now stripped the diff out of the car and measured the ramp angles.
They are 30 degree (power) 55 degree (overrun)... I need a steeper ramp on the power side - who can supply me with these?
As suspected, the shallow angle means the diff is locking under very small throttle applications due to the immense low down torque produced by the GT2.

 

Again, Matt at Guards (GT Gears).

Mike