Wavetrac diff.
 

Does anyone have any experience with these - good bad or otherwise?

Wavetrac® Differential - A torque biasing differential with a difference

TIA

Mark

:o errr - ummm Ok. Must remember to engage brain before keyboard...:D

Lots of good infor thanksSmileWavy

I ordered one to supposedly fit a relatively early 901 trans, only to find it wouldn't fit and had to be returned. They said they were going to update their product information because of that situation, but buyer beware.

Got one this off-season for 914-6. All I know is that now I can autocross
without lighting up the inside tire coming out of a corner.

What year did you find does not fit. I am looking at these for my'70 911-01 trans.

SmileWavy

I have a Wavetrack in my VW GTI. It is necessary for higher HP front drive cars since the traction is moe equal. I think it is fine and have had no problems but you do have to get used to it and not try to accellerate from a stop in tight corners. It pulls strong out of turns and seems to give the car more balance. I was thinking of getting one for my 911.

Works great on the front axle of my Mitsubishi Evo. I use a Guard for my 911 though...

We've got one for your Evo, FYI.

You see common lore suggesting a TBD for FWD cars but I think that is mostly because they've never seen an LSD that was designed specifically for a FWD car. APR in Grand Am and 3Zero3 Motorsports in World Challenge cannot get over how much faster their cars got when they installed our LSD in their Jettas and GTis.

Many thanks for your reaponses. If I interpret this correctly:

GT is the goto diff for track-oriented cars - better/newer tech than older factory LSD etc. And it's available with great customer service!

GT or Quaife (and others) TBD operate much the same as each other? although from other threads it seems that Quaife is prone to self-destruction in high-power applications?

FWIW, I have a Quaife in my 914/6 GT rally car which works well for Autocross and rally with 200HP. For sure I've run into it's limitations on the track...

From Wavetrac's blurb - "During the transition from accel to decel, where you have near zero torque on the axle, even if the wheels are on the ground, the typical diff is unable to begin applying drive torque until AFTER the zero torque condition is over. While this condition is generally short-lived, the fact that most diffs can do nothing during that time means that there will be a delay once the zero torque condition stops - creating a reaction time in the driveline." - which is precisely what you experience with a TBD or open diff and it's very noticeable.

Then Wavetrac goes on to explain how they are different. The question is how effective are these putative differences? Does anyone here have any real-world comparative experience re LSD vs TBD vs Wavetrac? One oft-touted benefit of a TBD is that it's more or less maintenance free. Could this be said of a Wavetrac and, if not, how would it's maintenance regime compare with that of (say) a GT LSD?

TIA

Mark

This was for my 69 with an aluminum case 901.