I have a question on changing my tune.
02-18-2012, 08:25 PM
#1
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St. Jude Donor '12-'13-'14
I have a question on changing my tune.
I have a 2002 A4 C5 with 3.15 gears, If I change my gears to 3.90 what do I need to change in my tune, I am sticking with the stock converter, Right now I have a Chuck CoW tune, I do have EfiLive so I am able to change whatever is needed for the gear change.
Thanks in advance.
Mr.Bill
Thanks in advance.
Mr.Bill
02-20-2012, 12:22 PM
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St. Jude Donor '13-'14-'15
On a gear change on a C5 you do NOT make a speedo correction---the speedo sensor is on the output side of the diff and not the input side of the trans like on an F body
And YES you should do a shift point correction--
A 3.15 to a 3.90 is a huge change---a minus 24.50% !!!!!
If you have EFILIVE it is a simple 2 entry fix to do them ALL at once-( i believe here are 45 total correctons )
PS: I often do not adjust the P/T 1-2 and 2-1 shift points however--it makes it shift to quickly into 2nd--
And YES you should do a shift point correction--
A 3.15 to a 3.90 is a huge change---a minus 24.50% !!!!!
If you have EFILIVE it is a simple 2 entry fix to do them ALL at once-( i believe here are 45 total correctons )
PS: I often do not adjust the P/T 1-2 and 2-1 shift points however--it makes it shift to quickly into 2nd--