[Mike S]

I was wondering what people see between the 2. Foot braking my car has 1.385 60's. That's leaving at 2000rpms, any higher it pushes the brakes. On the trans brake leaving at 3800 60's are 1.321.
This is a stock suspension car with dot drag radials. Seems to really like the tires being hit with the trans brake. Converter is an 8" mrt treemaster that stalls at 5000. Th 400 with a 4.10 rear gear.

How much difference to you see in your car?

[CraigG.]

What tires?

[Mike S]

MT et street radial pro 316/60. Set at 17 psi hot, 15.5 psi cold. Race weight 3460lbs. Double adjustable shocks in the back, stock 50/50 shocks on the front.

[slowbird]

I'd be curious also.
I do know that currently mine will go 1.29 footbraking.
With no power pulled it blows the tires off after about 2 feet with transbrake. Will have to figure that out.

[SRGN]

It's not just transbrake or footbrake, it has a lot to do with your combo and tire, as well as track prep. Bias ply tires, you want some wheel speed (controlled amount of spin in layman's terms), radials you want none. Most radials like to be hit hard with good prep, t-brake and the right suspension tune will work well. Bias plies are a lot more forgiving on setup, and my personal preference for no prep and tracks with inconsistent prep. Footbraking on radials is more dependent on suspension tune, if the suspension unloads too soon, you will spin. Bias tires are less sensitive to unloading quickly, so they generally work better with non adjustable shocks. With all things equal, a radial will MPH better and be very stable on the big end. Going back to the original question, with perfect prep and suspension tune I was usually 3-4 hundredths better in the 60' off the transbrake. If track temperature and prep vary throughout the day, I'm footbraking, since I usually run index or brackets and I need the consistency.

[PontiacHO]

Foot brake and line lock vs trans brake can be significantly different for hard launch high rpm starts. Both foot brake and line lock “loads” the suspension where trans brake does not. Trans brake can “shock” the tires to set the hook up as well as taking advantage of suspension weight transfer immediately on launch.

[Probird]

My car runs the same foot brake or transbrake. It’s not as violent leaving off of the foot brake though. I only tried to foot brake it once. I was surprised it ran the same.