shift points for a tuned A4.
Thread Starter
Instructor
Joined: May 2010
Posts: 230
Likes: 2
From: indianapolis Indiana
shift points for a tuned A4.
I have a lightly moded and tuned automatic c5 with 3.15 rear. It was tuned by previous owner. What is normal shift point for a c5?
This is how my C5 behaves:
Normal driving- Shifts at 1800-2000 rpm all gears
WOT-
First to second gear at 3000 rpm (always)
second to third around 4000-4500
Is this normal performance tune up? Or is it tuned to save gas. car produces plenty of power at 4000 rpm. 0-60 still remains below 5 seconds.
This is how my C5 behaves:
Normal driving- Shifts at 1800-2000 rpm all gears
WOT-
First to second gear at 3000 rpm (always)
second to third around 4000-4500
Is this normal performance tune up? Or is it tuned to save gas. car produces plenty of power at 4000 rpm. 0-60 still remains below 5 seconds.
Safety Car
Joined: Aug 2011
Posts: 4,449
Likes: 409
From: Portland OR
The really smart guys will chime in here.
But from what I've read in Malsic's book, the A4 shifts normaly at a particular throttle opening percentage. The more throttle the later it shifts. This can be adjusted.
Full throttle is controlled by mph and rpm. 2 different tables that can be adjusted. Stock RPM full throttle is 5900. So yours must be tweaked lower for some reason.
Ron
But from what I've read in Malsic's book, the A4 shifts normaly at a particular throttle opening percentage. The more throttle the later it shifts. This can be adjusted.
Full throttle is controlled by mph and rpm. 2 different tables that can be adjusted. Stock RPM full throttle is 5900. So yours must be tweaked lower for some reason.
Ron
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That sounds like a tuning issue, we can take care of that for you with our $149 tune special if your interested. 
http://forums.corvetteforum.com/c5-s...nly-149-a.html
.
http://forums.corvetteforum.com/c5-s...nly-149-a.html
.
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Former Vendor
Joined: Aug 2011
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From: Tampa Fl
St. Jude Donor '12
Corvette tuner in Tampa
No I cant say that is normal. The shift points are to low at WOT and seem to be hanging to high in part throttle shifts.
www.TampaTuning.com
www.TampaTuning.com
Le Mans Master
Joined: May 2006
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From: Hillsboro OR
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From: San Antonio Texas
I had mine tuned to suit my driving style. The shift points, time to shift, as well as the transmission lock up are variables that a good tuner can easily do. The tuner I used had a table that changed the shift point as a function of the throttle position. I like to stay in first a bit longer than stock and the adjustments that the tuner made for me made the car so much more "driveable". I think it took all of 10 minutes and he did some other things too. Well worth the time and effort in my humble opinion.