997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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Turbo Acuator Overheating

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Old Jul 9, 2015 | 06:41 AM
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Turbo Acuator Overheating

I've been dealing with this issue for a while and hoping some brains could help out.

After 15-17 minutes of hard driving on the track, in particular, tracks that have stretches that the turbos are working hard. They shut off, no CEL but the turbos go into a limp mode. Car actually drives good till but no boost. The codes through durametic tells me the driver side acuator is overheating.

Dealer replaced acuator last summer and it happened with 2 different actuators. They recommended some heat shield tape to protect acuator from engine.

The driver's side acuator is near the exhaust manifold, where as the passenger side is on top, hence I think there is more heat.

I put some heat shield tape on this past week at Mt Tremblant but not sure I'm knowing how to effectively put that on. I do know that when I took the tape off, some sections were burnt on the glue side, so I know this area is getting really hot.

Questions:
1. Should I even have this problem? Other turbo owners who track their car, do you have any issues running really hard on hots for times longer than 20 minutes? Don't seen any posts about it
2. This area is getting really hot, there are 4 components in this area, exhaust manifold, the turbo, the actuator, the side of the motor and a few heat shields. How do you find out which component is causing the excessive heat? Would a problem with a turbo cause excessive heat? The actuator rod does move freely prior to sessions and the car runs great right up til the overheat scenario.


3. Should I create some kind of air scoop to cool area? Anybody else ever create cooling ducks for the turbos.

My car details are below, I do have an EPL tune, exhaust but no other engine mods.


Any help would be appreciated
 

Last edited by Winnilaker; Jul 9, 2015 at 06:44 AM.
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