Oh so all that time in between is for me to take KA for an extra long test drive?



Sorry I felt like dreaming for a couple seconds.

 

Actually Zippy,

When I ordered the bare heads from Gert at Carnawal they were only about $1,800. a pair.

 

Chad, you might be satisifed with the motor. The rest of the car, on the other hand, might go for a few changes to try to keep up.

 

Not really sure what else could be done short of flairing the fenders. The problem with this is there are not any larger tires we could go to that would stay within the awd requirements. This car has a pretty amazing undercarriage.

 

Back to limited slip differencials. Porsche MS has them available. Guard Transmissions also makes them. Doing a little research many of the dominate race teams install the Guard unit. The Guard unit is made using chrome molly material. It can be purchased in a 40/60 or a 50/80. The first number refers to lock up in percentage of acceleration while the second number refers to lock up in percentage of deacceleration.

If anyone has used the Guard LSD on a 996tt I would really like to hear your experiences as they relate to which differencial you were using.

 

Another bit of info. I understand the early 1973 Carrera RS's were equipt'ed with a 50/80 LSD.

 

certain mornings between 12:30am and 2:00am I make it point to not take out my 800hp plus cars.... a cab works much better to get me home...hehe

 

Do you mean that in terms of underbody aerodynamics?

Greg A

 

Chad,

What does your tt weigh now? I know you have tried to
lighten it, just curious.

 

We have the Techart panels. Have not installed yet.

 

The last time we checked she was 3,092 pounds. That was February 2004. We have performed some reductions like the crash bumper guards and replacing the absorbers with aluminum T bars since then.



We are still running the stock factory front seats (no rear seats). If we ever decide to replace them we can lose a few more pounds. We are looking at the Cobra Imola Technology seats.

 

We have made a small advancement. To date not much attention has been paid to the rear differencials and none to the front differencials, let alone the connection mechanicism transfering the power from the rear to the front.

Well, we have now modified and /or changed them all. Some of these parts were borrowed from the GT1 and the RSR. One of the parts was custom made from billet. Yes, a new front differencial. More on this later. I now venture to say there isn't a street legal 996tt that can compete on the twisties using similar qualified drivers. This unit is stronger than the stock unit and it puts the power down much differently in the twisties. Imagine having the front wheels independent going into the turn and progressively locking together coming out of the apex. It is to say at the least ................. an unfair advantage.

 

I'm looking forward to learning more about this new front differential.

Greg A

 

Greg,

This front differencial is much like a rear Bias Differencial as opposed to a Limited Slip Differencial. It is made from Chrome Molly so it is alot stronger than the small stock dif. This new front differencial allows the car to go into the turns using the brakes with the two axles rotating at a different speed (which is good). Once you have hit the apex and you want to accelerate............ it (through gearing ie. biased differencial) locks the two axles together (again this is good).

This front differencial in combination with a F1 type front transfer gear and the Porsche MS RSR billet LSD allows the 996tt to handle better than your wildest dreams.

 

Chad,

I thought of the "front torque transfer" differential that BAR F1 introduced when you first mentioned your new front diff. I believe its operation is similar to what you are describing here--obviously minus the 4wd aspect.

Am I reading you correctly?

Greg A