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I run the bullydog on 120, and i can spin my tires sometimes without brakes. If i am at a stoplight and touch the brakes real light, and giver throttle, i can sit and roll smoke off the duals on the right side all day. I cant get all 4 rear tires doin unless its decent ashpalt.
37 inch tires, 100 or 120 HP setting on the DP chip, Maybe. A foot or two off the line is when it starts ( I never power brake), if it happens at all. I can get it do it in corners when not even trying, but that's when I don't want wheel spin.
BUT, I am getting some new Ring and Pinion sets for my truck this Spring, and we'll see what improvement it makes (in the MPG department).
I can brake to get 10# boost and I can get 4 tire marks for 10 ' or I can brake and get the boost to 15# and light them up all 4. Once I hit 15# they start spinning. When I race someone I have to put it in 4x4 to get traction. In 4x4 I will boost to 20# and let go of the brake What a ride. lol
In 120 and 140, somtimes I can get some good wheelspin with 35s, most of the time they just chip. if I power break it at all then I can really get them spinning. Turning out of my neighbor hood I have gotten sideways before though ...that was on bald tires, but still it was dry and these trucks are heavy lol
From a dead stop at this altitude, I have too much turbo lag to break the tires loose. Now with the foot on the brake, give it some throttle, and yes I'll burn these tires off the rim.
I am pretty sure I can spin mine as they leave black marks when I want them too. Strange tires I have. No protest from them at all. They make no sound whatsoever.