ok so i have a rc sb 05 ram with the Hemi. I have flowmaster 40 series muffler cut cats airraid intake throttle body spacer and a superchips. Before the superchips and cut cats i was running 15.5 With the superchips i am running consistant 15.2 I have tried running every possible way. shifting through till drive ..........staying in drive.............tow mode everything to try and break 15.2 but i cant. Any words of advice? I know the stock 20's slow me down but that much????

 

Auto trannies run fastest down the strip left in Drive. Shifting yourself, is gonna urt you. Turning tow/haul off makes no difference. Work on your 60 foot time if you want your ET to drop. Or get more mods.......

 

what are your trap speeds, and what are your 60 foot times?

i seem to recall that tow mode can make a difference, but i dont recall why...does it keep the trans out of high gear? amanda's truck picked up something like a tenth and a half, and a couple mph keeping it out of OD.