Performance Chip
Considering performance chip for 07 Silverado 2500 DuraMax pulling Jayco 37' fw. All I input appreciated.
Forum Discussion
Haven't owned a Duramax but...our 02 Ford 7.4 Diesle Dualie we had a Superchips programmer.
It had three settings, tow, and something and performance.
I left it in the first setting.
It ran like a sports car empty. No figures on output imrprovement but it was huge.
When towing our Fifth Wheel it sometimes set the check engine light. The reason was it would cause the torque converter clutches to unlock under heavy acceleration. I was told not worry about it but had the programmer turned down a bit. Didn't like it and had it turned back up.
The Engine then didn't make the output they quote now by the three automakers.
But it would out pull any of them stock from my seat of pants with the tuner.
Mileage actually improved, as is common with diesels but I can't remember how much. Just don't exceed reasonable driving practices. I didn't do it for a hot rod just to improve pulling performance a bit. If they had kept the 7.4 and put the next generation trans behind it, would have kept them top of the heap.
It had three settings, tow, and something and performance.
I left it in the first setting.
It ran like a sports car empty. No figures on output imrprovement but it was huge.
When towing our Fifth Wheel it sometimes set the check engine light. The reason was it would cause the torque converter clutches to unlock under heavy acceleration. I was told not worry about it but had the programmer turned down a bit. Didn't like it and had it turned back up.
The Engine then didn't make the output they quote now by the three automakers.
But it would out pull any of them stock from my seat of pants with the tuner.
Mileage actually improved, as is common with diesels but I can't remember how much. Just don't exceed reasonable driving practices. I didn't do it for a hot rod just to improve pulling performance a bit. If they had kept the 7.4 and put the next generation trans behind it, would have kept them top of the heap.
