Diff.swap=chip/ecm swap..?
Thread Starter
Racer
Joined: Nov 2004
Posts: 445
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Diff.swap=chip/ecm swap..?
When talking of tunes one of the questions asked by tuners is "what rear ratios does the car have?"
It seems that the rear end ratio has some sort of effect on the tuning parameters in the chip....
Does this mean that if a rear end swap is done between two cars with different ratios, that the chips/ecm's should be swapped as well?
Both are the same years and both are A4's.
TIA for sound advice.
It seems that the rear end ratio has some sort of effect on the tuning parameters in the chip....
Does this mean that if a rear end swap is done between two cars with different ratios, that the chips/ecm's should be swapped as well?
Both are the same years and both are A4's.
TIA for sound advice.
Le Mans Master
Joined: Feb 2005
Posts: 5,146
Likes: 3
From: The Motor City
When talking of tunes one of the questions asked by tuners is "what rear ratios does the car have?"
It seems that the rear end ratio has some sort of effect on the tuning parameters in the chip....Does this mean that if a rear end swap is done between two cars with different ratios, that the chips/ecm's should be swapped as well?Both are the same years and both are A4's.TIA for sound advice.
It seems that the rear end ratio has some sort of effect on the tuning parameters in the chip....Does this mean that if a rear end swap is done between two cars with different ratios, that the chips/ecm's should be swapped as well?Both are the same years and both are A4's.TIA for sound advice.
To know what is going on for sure datalogging while driving will answer all those questions.
