I made the switch to RWD a several months ago and love it so far. Pulled all parts related to front drive, feels lighter, more acceleration. Don't track the car, just 'spirited' street driving.

Question: Don't have the LSD installed, so am I just driving one rear wheel? If I were to do a burnout (which I won't) would there be only one tire mark? If so I may schedule the LSD addition, or reinstall the front drive components. I looked on the board and get mixed messages.

 

Yah you have an open diff. I'd go with a wavetrac LSD.

 

You're still driving both wheels, until they slip, hence the Limited Slip diff.

 

You could have some performance loss if you are spinning one wheel in corners and stuff, but if you like it and aren't spinning you can just roll with it.

 

I highly recommend the WaveTrac diff. Its not a "true LSD", but gets the job done on a budget.

 

Best for a dual duty car is either leave it awd or rwd with the addition of an lsd for the reasons mentioned. "Open diff" is no way to run the car if performance is the goal.

I also recommend the wavetrac and RWD

 

I've been RWD for 2-3 years now. I'm still waiting for some signs I need a LSD. My '99 996 C2 Cab had one, my last 2 Vette's had them too. I haven't found the need thus far.

I'm the type (now) that will find an area that needs attention and address it. I didn't like the AWD from the day I got my TT, and changed it after a few years to RWD. I didn't like my ride height, lowered it with coilovers. I didn't like the front end push, I went a heavier rear sway bar. I didn't like the long shift throws, installed a SSK. I wanted black wheels lighter than stock, got 'um. I'm an ex motorcycle road racer, so I like fast, especially entering turns, exiting them too. Compared to pusing a cycle at speed the car seems too easy. Anyway if I ever find a need for a rear LSD and the need keeps coming up, I'll put one in. I think I would have felt it already. Talked to a friend that tracks his 996TT all the time and he doesn't think I'll find I need one.

 

I just got my front diff back in the car. I loved the feel of the RWD for the 6 months I had it, but I see now that I'm much cockier with 4WD! Straight line doesn't matter too much but once you start pushing the corners, the 4WD gives you a sense of confidence and predictability that is not matched with RWD.

When I was RWD, I did test whether I had open diff when I had a chance in the snow. Definitely not open diff. The GT2 has a locking diff in the rear that is different from the turbo, but don't be too quick to go spending a few grand to get a different LSD unless you try it out in some slippery stuff first so you can see how it handles as is.

 

I think you'd really have to be pushing the car to notice. I do notice that when I put the rear into a slide and give it some gas that the front wheels pull me around the turn some. I don't know what that would be like with RWD and no LSD.

 

If you don't do burnouts and don't track the car, I see little point in adding a LSD because 99.99 % of the time under regular driving, or even under spirited driving, won't cause the wheels to slip. Besides LSD always require high maintenance because the clutch plates are the first to wear out. Now if you track the car, yes LSD indeed helps.

 

At 775HP and RWD my car would sometimes want to jump over a lane at WOT, the WaveTrac has helped with that enormously. Since he's got upgraded turbos, I imagine it would be the same for him.

 

I ran open diff RWD on quite high power for a few years.....

As far as performance... it was fine on twisties but I never got to the track.

I did get caught one night in a few inches of snow on my summer R888s... had to get home 32 miles from Easthampton... bloody terrifying even at 25-35 mph most of the way

 

 

Since i use my car on the track, i go LSD + AWD.