Lightweight Flywheel
10-04-2019 | 11:15 AM
#16
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Why do think that is? Strength issue? The Turbo mechanicals produce too much torque for a GT3 crank to handle?
Last edited by Carlo_Carrera; 10-04-2019 at 12:08 PM.
10-04-2019 | 11:25 AM
#17
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It’s not a strength issue in my opinion. I’ve been using a GT3 crank for 5 years . Most likely it was cheaper at the time to manufacture the TT crank in the larger numbers required for the TT production market. Porsche probably figured the TT crank was sufficient for the lower rpms seen by the turbo engine and they were not designing a crank for racing conditions which necessitated some design changes to the crank to improve oiling capacity. For vast majority of users and applications, the TT crank is more than sufficient.
Last edited by powdrhound; 10-04-2019 at 12:05 PM.
10-04-2019 | 02:27 PM
#18
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It’s not a strength issue in my opinion. I’ve been using a GT3 crank for 5 years . Most likely it was cheaper at the time to manufacture the TT crank in the larger numbers required for the TT production market. Porsche probably figured the TT crank was sufficient for the lower rpms seen by the turbo engine and they were not designing a crank for racing conditions which necessitated some design changes to the crank to improve oiling capacity. For vast majority of users and applications, the TT crank is more than sufficient.
10-04-2019 | 02:53 PM
#19
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Both 76.4mm. The GT3 crank is a pound or two lighter if I recall. Can’t remember the exact number. I can weigh them when I get a chance as I have a TT, 7GT3, and the latest gen 991Cup crank at home.
10-10-2019 | 10:19 AM
#20
Burning Brakes
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I went with Sambo (ByDesign) suggestion: Clutch/LWFW GT3RS 4.0 and am a fan. As other say only get a bit of noise with AC in neutral. Push in clutch and goes away. It the rev is instantaneous- feels much quicker darting around.
10-10-2019 | 03:31 PM
#21
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I have Kevins GT3RS 4.0 version, a little chatter but I barely notice it.
In all my manual cars, and two diesel trucks, I have them.
Kevin's assessment with the 996tt is going with a lwfw would be akin to adding 30hp.
In all my manual cars, and two diesel trucks, I have them.
Kevin's assessment with the 996tt is going with a lwfw would be akin to adding 30hp.
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