Internal Motor Modifications
RC, I have found only one person to date in the US who has performed internal modifications to the 996tt motor. Result-information is hard to come by. I have just started my project. We are knife edging the crank. Machining the heads to accept metal o-rings. Port/Polish the heads along with adding nickasil valve guides. New parts are GT1 oil pump, Ruf titanium conrods, GT3RS springs. May do something to the cam and pistons but no firm information as of yet. The car is a street car used rarely on any track. The car is currently producing just under 650 hp and almost the same amount of torque. Current gearing has the top end limited to 185 mph @ 7000 rpm's. The main purpose of these modificatiions are to maintain present acceleration while raising red line to 8000-8500 rpm's so as to bring the top speed up to about 210 mph.
RC, do you have any suggestions?
RC, do you have any suggestions?
There are two german Tuners who know A LOT about the 996 TT engine and even have access to classified information to a certain level: RS-Tuning and TTP (Turbo Technik Pietz). Most Tuners don't want to share information with others and/or in public and I can understand that. I wish I could help but I guess the only chance you have is to find a knowledgable Tuner who is willing to cooperate with you. Most Tuners out there try to offer stuff which isn't too expensive and delivers them maximum profit. This is nothing bad but you can't expect "exotic" tuning solutions.
