997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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Old Feb 21, 2017 | 09:19 AM
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Originally Posted by 996tt550hp
When I took my trans out by the shop the gears were worn with those brass syncros.

do you have a 997TT transmission?


because it is completely different than 996 inside to outside.
 
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Old Feb 21, 2017 | 09:23 AM
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Originally Posted by prodigymb
do you have a 997TT transmission?


because it is completely different than 996 inside to outside.
Correct! just wondering what was the difference in the 996tt trans? Are they stronger then a 996tt trans?
 
Old Feb 21, 2017 | 09:48 AM
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Originally Posted by 996tt550hp
Correct! just wondering what was the difference in the 996tt trans? Are they stronger then a 996tt trans?


- new case castings are stronger, less flex around diff
- stronger and slightly wider gear wheels
- every synchro is a triple gear steel synchro with carbon coating, triple synchros is the reason the 997TT trans is slightly longer than 996TT and cannot fit the GT2 gears.


i'm not saying these things are unbreakable, because they most definitely are .... but far less common than 996 3rd gear failure.
 
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997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
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Old Feb 26, 2017 | 11:04 PM
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Met the guy who just bought this car today at Shift sector he didn't get it shipped in time for the event, but says he will be at the next events in CA ,so should be nice to see it do some runs.
 


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