skyler1101
New member
- Joined
- Jul 4, 2011
- Messages
- 262
hey guys i have an 06 cummins 48re fully built goerend tranny billet shafts throughout stock turbo eif live stock fueling besides an airdog 150 feeding everything have intercooler 3.5 intercooler pipes all the way around hoping to hit at least 500 but our local dyno is notorious for being around 40 hp short so we will see my question is i have never dynoed with an automatic i installed a lockup switch tonight and i have read what i believe 3rd gear to lock it in and hit it does anyone have any other suggestions or better advice .. basically wondering what gear to choose tow haul or non tow haul overdrive on or off where i will see best results thanks!!!