A8 question
Thread Starter
Safety Car
Joined: Jun 2004
Posts: 4,971
Likes: 535
From: Witness Protection Program Somewhere, USA
2026 Restomod of the Year Finalist
A8 question
Anyone heard anything about higher torque levels causing the trans computer to tell the engine to go to reduced power mode at the 3-4 shift?
Just curious what that number might be or even if it's true at all.
Just curious what that number might be or even if it's true at all.
The Consigliere
Joined: May 2006
Posts: 23,003
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From: 2023 Z06 & 2010 ZR1
Hopefully some of the A8 guys will chime in.
Drifting
Joined: Apr 2008
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From: Mesa AZ
Thread Starter
Safety Car
Joined: Jun 2004
Posts: 4,971
Likes: 535
From: Witness Protection Program Somewhere, USA
2026 Restomod of the Year Finalist
Drifting
Joined: Apr 2008
Posts: 1,356
Likes: 105
From: Mesa AZ
As I stated above with the picture of logs I have not seen this, what are you feeling on the shift? My car has a Halltech intake so its making 45-50 more rwhp than stock. Are you getting a check engine light? Anything to make you think its reducing power tremendously?
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Thread Starter
Safety Car
Joined: Jun 2004
Posts: 4,971
Likes: 535
From: Witness Protection Program Somewhere, USA
2026 Restomod of the Year Finalist
Rumor has it that some reprogramming is needed.
Anyone?
Race Director
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From: AZ
Melting Slicks
Joined: Oct 2007
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I don't have an A8. But I am sure you are bumping into the TQ limit if you are highly modded. If I recall in HP Tuners you can see there are TQ limits set for each gear on the M7. I am sure limits are there for the A8 as well. I think Ktoonsez has an A8 and may be able to see this in his editor under the TQ management tab.
But yes there are all sorts of protections in the PCM that limit TQ, RPM and HP to ensure longevity of the drivetrain.
Last edited by dar02081961; Mar 17, 2016 at 03:42 PM.