Do I need a tune if I install a exhaust ?
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Joined: Apr 2015
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From: LA
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Please ignore my posting but I'd like real answers about the DEM and it's ability to retune out a post turbo exhaust system performance gain and it's ability to detect torque changes due to the exhaust alone... I also wonder how it retunes for loose or wet road surface traction to stay in it's original target peak torque setting when traction control is turned off and when the car regains grip on dry pavement with a torque spike at high rpm....
My questions I would like answers to so that I can better understand the factory DEM.
I find it amusing that there so many guys willing to just believe the sales pitch...
Last edited by RS211; May 2, 2015 at 11:48 AM.
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From: Meridian MS
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From: Lexington, VA
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I'd like to see a dyno sheet showing these changes in torque during multiple pulls and sustained loads to show these corrections with a freer exhaust only modification..
What percentage is the throttle closing with a say 10 psi decrease in exhaust manifold back pressure to keep the engine in it's targeted torque range ?
What percentage is the throttle closing with a say 10 psi decrease in exhaust manifold back pressure to keep the engine in it's targeted torque range ?
GO AWAYYY!!!
Kindly,
- Patrick
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