Besides a little weight loss, are there any advantages to dropping the all wheel drive or is it just a preference? I think traction would outweigh the weight loss but I'd love to hear what people say who've done it...

 

Personally I found the awd better at our local race track and certainly on the street. I tested running the car in rwd with open diff, awd with open diff, rwd with LSD and awd with LSD. Awd was always significantly faster and I'm only running a bit over 500whp.

I only removed the center driveshaft but traction was significantly reduced in rwd, no LSD rwd was a joke.

I've tracked several turbos and 996/997.1/997.2/3.8 gt3s and prefer the turbo, but its a different style to drive, hammer vs knife.

why these cars never can with an LSD stock is beyond me.

 

If you want to crash and die. 996gt2 is the widowmaker because no stability or traction control. On my 997 gt2, I turned my stability/traction totally off, punched it at 50mph in 2nd gear and I almost slid into the center median 2 lanes over .

But the handling character feels so much better and natural to me. That is why the GT3's never come in AWD. Yes AWD is faster and easier to control but you sacrifice the feel and fun factor a little.

 

I did it. I have RWD now with LSD and it is hard to get traction and I have UMW's Stage 2b. I use to spin tires easily in the first 3 gears, now I spin them violently. The one big advantage to RWD in the Turbo is that you can still use PSM unlike the GT2 which has none(996). Of course, the psm shuts you down quick.

I think I preferred the car in awd more, but gonna give it sometime and some sticky tires before I change back. I kept all my old parts.

 

I have rwd and at first I just cut the stub axles for the front drive. Love it feels more in control but I really only go forward No turns. Now I have the GT2/3 upright in the car and all the needed bits I should be rolling in a few more weeks. In awd I did not like the front end sliding under power at all.

 

I have rwd and the car went 10's, I don't have a problem in turns as most assume you would...good tire goes a long way in rwd application. i love rwd

 

for me the negative is just power. Since all of it is directed to the rear, even if you didn't spin the tires much before, now you will. I spun tires a lot before, and now it is so much worse that I will get sideways in 3rd gear and and on a cold morning fagetabutit. I do enjoy how the car plows less now than it did before. I also like that fact that it weighs a lot less than before. I think I will just start running R888's and that should solve the problems with traction a bit more than now.

 

Sounds like you who have 2WD problems are running bald crappy tires or waaay more power than I have.

I have RWD with flashed K24 turbos at 1.1 bar. At that level there is no way to break traction unless I jam it and dump the clutch in first gear, then I will have wheel spin for some 20-30 yards if I milk it. Alt if I corner at the limit and then mindlessly mash the throttle - but do that in 4WD and you will push out of the turn so just a preference if you want to make the turn a little loose or go off with a push.

My tires are Hankook RS2 or Hankook RS3 depends on wheel size, both are sporty street tires.

Car in 2WD is A LOT faster bc it's lighter (no diff) and has less inertia losses. Anywhere the road or track starts to turn the car in RWD handles a lot better, it doesn't change the balance on you as a driver back and forth. The 4WD car will be a little dot in the mirror after a couple of turns, unless rain. I took appr 3.5 sec of the laptime at Buttonwillow going 2WD because balance finally wasn't shifting all the time, and I was quicker down every straight thanks to not having to drag the front diff weight around.

However I'd like to add that at 700hp and up AWD would start to make a bit more sense.

 

Tires are good. But sticky tires will be better.

 

Did you add LSD? I am trying to decide if I want to do rwd too.

 

Did you try running the car in awd with a LSD?

I do agree that stickier tires would help, I am running street tires for all of the testing, which was all recorded using traqmate. Fastest combination was LSD and awd by ~2 secs on a 1:23 lap time on a 2.2 mile track.

Awd with LSD doesnt push since you have to have both rear tires spinning to induce significant power transfer to the front. In the wet, absolutely no comparison, so much more stable.

 

I removed the entire system, half shafts, and assembly and corner balanced the car. Since you are taking over 80 lbs off the front of the car, it is imperative that you recorner balance the car and add some rake. As for the lsd, I like mine. It came off of a new GT2 and it works very well. Almost to well, as I can throw the rear end out easily, which is loads of fun. I definitely have more oversteer now than understeer, which I prefer. It feels more nimble. I wish I had tried the rwd conversion without the lsd first and then added the lsd later to see what kind of difference there is.

The RWD conversion is one of those love/hate things. Some people in here love it and others hate it and go back to awd. There are two well known and respected people in here in particular who are polar opposites on this issue. I have not run it long enough to know which I like better, but I have kept all my original parts to go back to awd if need be.

 

Yes. Carbonetic. Carbon disc LSD, low pre-tension bc carbon discs have higher friction, so makes it smoother than a metal disc diff and doesn't wear as fast.

 

Bring ear plugs for the R888s...

 

You have to have LSD if you go RWD otherwise you have a car putting power down to only one wheel. Performance in the twisties will suck.......