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Removing rev limiter on 7MT models

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Old Sep 10, 2023 | 09:03 AM
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Default Removing rev limiter on 7MT models

As some of you may know, on the manual transmission models, you can’t launch and or spin wheels because the standing idle is limited to 3500 RPMs.

Anyone know how to get rid of this limitation? I’m assuming doing so would void warranty so considering doing it at conclusion thereof.

Thanks.
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Old Sep 10, 2023 | 12:22 PM
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Tune via m engineering.
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Old Sep 10, 2023 | 08:12 PM
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The limiter goes away as soon as you begin to release the clutch. You can absolutely spin the tires and launch the car. You need to slip the clutch.
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Old Sep 10, 2023 | 11:15 PM
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Originally Posted by readydiverone
As some of you may know, on the manual transmission models, you can’t launch and or spin wheels because the standing idle is limited to 3500 RPMs.

Anyone know how to get rid of this limitation? I’m assuming doing so would void warranty so considering doing it at conclusion thereof.
Porsche does these things for a good reason. Their engineers know the car better than you do.

I have never had one issue in four water-cooled cars. I have had to fix a few air-cooled cars due to former owner negligence.
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Old Sep 11, 2023 | 02:55 PM
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The MT's are not designed to be dragsters.The extra RPM and corresponding stored energy could easily break parts of the drivetrain. With a PDK or Automatic Porsche can electronically manage the allowable loads and consequently push closer to the mechanical limits of the drivetrain.
Doing the same with the MT, there is no control except your calibrated left leg, and all bets are off. Also, be careful of stacking load factors like sticky tires, stronger clutch, hot pavement, tunes, etc. They all add to the drivetrain load and eventually you will find the weak (and usually expensive) link. Good luck.
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Old Sep 11, 2023 | 03:19 PM
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Wasn't there a thread about people breaking their rear axles doing 0-60 runs a little while back? Might've been in the 992 GT cars sub-forum. But if anything, I would think turbocharged engines, with their greater low-end torque, are even more problematic than the NA GT cars.

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Old Sep 11, 2023 | 07:38 PM
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Oy, enough with the lecturing already. Sheesh.
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Old Sep 11, 2023 | 10:43 PM
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Originally Posted by IPA1
The MT's are not designed to be dragsters.The extra RPM and corresponding stored energy could easily break parts of the drivetrain. With a PDK or Automatic Porsche can electronically manage the allowable loads and consequently push closer to the mechanical limits of the drivetrain.
Doing the same with the MT, there is no control except your calibrated left leg, and all bets are off. Also, be careful of stacking load factors like sticky tires, stronger clutch, hot pavement, tunes, etc. They all add to the drivetrain load and eventually you will find the weak (and usually expensive) link. Good luck.
No need to exaggerate. The first thing to go is usually the clutch.
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Old Sep 11, 2023 | 10:45 PM
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Originally Posted by 991.1 Guy
The limiter goes away as soon as you begin to release the clutch. You can absolutely spin the tires and launch the car. You need to slip the clutch.

If you're launching above 4K rpms, you deserve to pay for a new clutch.
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Old Sep 12, 2023 | 12:46 PM
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If you launch cars regularly as in 1/4 mile runs repeatedly you will go through clutches and axle shafts. It’s part of the routine. No big deal.
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