edmond1129

Had some fun with my 996tt friend last night, we bought a G-Tech and tested some 0-100KM/H time. The best I could do is 4.67 which I need to spin the tyres first to get them warm up, otherwise will just about 5.1, and the 996tt with some mod can do 4.1X.

I am thinking that should I get LSD or change to 172 pulley, which benefit more ?

BBBSS

What tire are you on? Ever consider a drag radial?

What size pulley do you have now? A bigger one will make you spin the tires more easily. A LSD would help, but a good tire may be all you need. Do you drive this car every day? In rain or snow? How many miles or km do you put on the car in a year?

edmond1129

Stock pulley, with PLM headers, PLM HE with CM30, 2nd Cat & resonator delete with X pipe, EC tune. Running Michelin Pilot Super Sport, changed all about 4 months ago, Not drive everyday and about 15000KM a year

BBBSS

If you dont get caught in the rain often a LSD or drag radials like the nitto 555R tire would help lower your 0-60 times. I personally would look at tires first. Your looking at replacing them every half a year or so though. If your ok with that get the tires, if that bugs you get the LSD.

e500slr

I think the DEA can help you with that.....

e500slr

Seriously though YES, an LSD will help. I think this should be one of the first mods on this car.

munich55

Sorry for ot but how does the g-tech work???
Is it the ss or rr ?
Can you set 100-200 km/h ?
Thx

mrweelr

I agree. This car should have had an LSD from the factory. Will be my next mod, no question.

jcjmw

I have the quaife lsd and its great, but I would get the pulley AND bigger injectors first.

chiromikey

lsd didn't change my 60ft times at the track so if it's that important to you just get specialty tires.

JAYCL600

Hey old buddy:-)

This is my experience as well. LSD is for turns, it won't improve your straight line traction.

chiromikey

holy og batman...what's up!

listen to guys like this that have gone through all these trials years ago!

Sher Judge

Absolutely its for the excessive cornering at speed.

grantwoodtx

I can tell you from recently being on a race track that the LSD helps a lot running on the right tires too is crucial.

RaceHorse

What about for street driving straight line traction? Drag radials and track prep may be enough to prevent crazy wheel spin but wouldn't there be a big difference for normal street driving/ launches? Also didn't you snap an axle with the CL? Do you think an LSD could prevent that instead of loading up only one wheel with all the torque?

Hammer Down

It doesn't necessarily load up on one wheel the ecu tries to send the power to the opposite wheel when there is a overload on one wheel, then what happens is that you are on the verge of breaking the tires loose at lets say 100mph and you get a side to side wiggle. If you had LSD it will negate that side to side movement and send the power forward (so to speak) I hope that makes sense

JAYCL600

Now were are talking application specific:
On the 600/65 It depends on how you define traction. On the street there isnt anything thats going to give you more "traction" as defined by "make u spin less", unless you go to a stickier tire. With the amount of torque that these cars put down, nothing is going to help except a tire. On the street you should be able to lay a straight patch from the line, with out a one wheel burnout, that means an LSD isnt going to help you on the street.

OK now onto the strip. With sticky tires, while trying to do a burnout, it is IMPERATIVE that you make sure both wheels are spinning. If you hear a loud hum STOP. Multiple "one wheel burnouts" will grenade your rearend. Yes my rear popped but it was from the burnout procedure. The last 2 years of racing I had a spotter just to make sure both would spin in the water box. Now an LSD will cure this problem of a one wheel burnout and will save your rear. But it will not equate to a better 60ft or out of the hole traction, I hope this helps!

RaceHorse

Thanks for the advice, for the most part what you are saying makes sense. I did find myself having a tough time with a single wheel burn out at the track and that was with street tires. If you make it to MIR I may need your help getting them both to spin.

As far as the street the car feels as if it never spins both tires at either slow or faster speeds. My experience with other cars has always been that the back of the car would get sideways if you had a LSD assuming you were forcing the tires to break loose. To me the CL feels as if no matter what only one tire spins and the other 3 keep the car heading straight (this is driving with ESP off). I'm not expecting WOT from low speeds and no spin on the streets, just some better traction under 45 mph. I thought an LSD may give me a fighting chance but it seems your suggesting otherwise.

alextaylor29

Guys quick question, what's the best price you've found for an LSD and how much for professional install?

My next mod will either be this, fuel rails, TB or scoops tubes. Decisions, decisions!

pearlpower

The quickest E55 runs a LSD if that matters. Also keep in mind that on many cars a LSD can be a handful in a corner since both wheels are now spinning, traction control will not be as intrusive as it does not sense the wheel spin as stock, and you can 360 faster than you can blink. Read- know how to drive with it.