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2009 CTS-V 4th to 5th shift help and crisping up the rest?

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I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.

 

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Urbamworm
Urbamworm's picture
2009 CTS-V 4th to 5th shift help and crisping up the rest?

 

I have a few issues, the main one I will want to get sorted is shifting on spray but want to start with another new problem first. After I got my car back from a recent build I later found out I had a bad long shift going from 4th to 5th. I am going to attach a link with 2 log files I did at the drag strip yesterday using your trans config file and also my tune. Hopefully it shows what you need to help me out. Also if you think an improvement can be made in the quickeness/firmness of all the shifts I am game for that too. The car is not a race car, but not a daily driver either, but I am pretty much all for performance when it comes to this car. It has a new GM reman transmission in it with a few thousand miles now.

This 4-5 shift drives me crazy out on the streets whenever I go fast enough for a 5th gear WOT shift. The car makes around 730whp off spray and 1000whp on a 150 shot but I plan to put a 200 or 250 shot in and it has shifted terribly on spray for a long time and I despearately need to get that right.  I plan to attend a big CTS-V event next weekend and hope to get it sorted then with a few tuners on site but if not I will be back with some logs to see if you can hook me up since it takes so long to do shifts on spray that I actually go slower ET wise on spray than I do without it while making 250whp less power.

Here is the link for the logs and my tune.  https://onedrive.live.com/redir?resid=E960DB3F8EF5A7D6!364299&authkey=!AAw-6SrrrHgh1uo&ithint=folder%2c

 

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