Markski , Congratulations on your powerful TT. My question to you and to others with modified engines" it seems that trying to aqcuire those great times comes with breaking stuff, example: axles,rods,cams,mafs,plugs etc.
With your vast knowledge, to what point we can upgrade our car without breaking engine parts? I'm talking about modifying a powerful car but reliable in terms of holding that punch in the long run?
Thanks and good luck with your awesome car.
Divi

Stage 4 is completely safe.

we only broke the axles.... and probably because Im running stiff rear springs.... we never broke anything else... Plugs get fowled due to C16.. thats on any car...
to answer ur question: 700 crank HP is holding up on a bunch of cars..

mark

Thanks for the info. I just wanted to know up to what point I can safely modify my car and not have major issues.
Thank you and good luck to all you guys with those fast TT's.

Divi

I don't believe you would be breaking your axles if you were running a LSD.

I know lots pro dragster run 100/100 LSD lock up but that 's very dangerous if one the axle breaks.

That is what I think as well... I don't want to end up in a wall .
Im probably going to put on softer springs ( currently the rears are 671 lbs.)
Im thinking of one more try for the 9s and Im done. No more of this craziness...

Mark, are you running your AWD? Or have you removed the front dff?

He's RWD.....

Did he just disconnect the front drive shaft or delete the front diff also?

No the diff is gone too.

We removed our front driveshafts, front half-shafts and front diffs....and a different coverplate was installed on the tranny.

Heck, it's only money.

How does the overall handling charicteristics change with the removed
front diff, driveshafts etc?

That's essentially what a GT2 is. A 996TT without the front driveshaft, front axles, front diff, output shaft hole in the tranny capped off....along with a better suspension (among other things).

After I had a coil-over installed and the suspension professionally adjusted and corner-balanced (by the crew chief of a local Porsche race team)...it handles better than anything I've ever owned. Feels like a stock GT2 with better turn-in (crew chief agrees).