I just put my truck on the dyno last week. Has anyone else done that?? Anyway my 99 PSD 6-speed, 70 hp chip,dual 3 inch exhaust,k&n filter,3.5 inch downpipe was putting 255 hp and 460ft. lbs. of tourqe to the ground. The guy at the shop told me it is about a 20% loss of power through the drive train. And it is was in Austin, Tx and it was hot and humid. they said that i should add about 10 to 15 hp.

 

Well i had mine on a dyno a while back, with just a chip and K&N filter, no exhaust on the dyno. i put 268 HP and 544 ft lbs of torque. If you look at my gallery i have the sheet posted there.








2001 F-350 CC Lariat 4X4 LB PSD SRW, Heated leather, off road package, western snow plow, strobe lights in parking lights and backup lights, tinted windows, pioneer cd player, rockford fosgate 1000x1 amp rocking 3 JL Audio 10W0's behind back seat, husky liners front and back, Hypermax "hot rod" chip, Hypermax pryo/boost gauge and Hypermax 3.5 inch downpipe and 5 inch exhaust.