Dual caliper rear brakes

[201250]

Any of you stock elim. guys/gals using a dual caliper rear brake set-up and why? More holding force when staging the car? Thanks

[KRatcliff]

Yes to the first question and it holds better at the line for me.

[340Cuda]

I always had trouble holding our car on the line since replacing the drum brakes with Strange disk brakes all around. Since adding the second rear caliber it holds very well.
The car is a 69 Barracuda.

[201250]

Thanks for the info. So is the procedure to pre-stage, press the brake pedal to a given pressure, engage a 2-step set at an RPM low enough to be able to go WOT off the line? I see a lot of stock elim cars bouncing back and forth during the staging process, but they seem to leave against the 2-step.

[Ed Wright]

You do not want more brake on the rear than the front. Good way to swap ends if you have to lock them up. I have single Aerospace calipers all the way around. I can stall it well over 3000 RPM with the foot brake with no problems. You may have the wrong master cylinder, or wrong pedal ratio.

[201250]

Thanks Ed ................good input. My experience has been in SS so leave off the tranny brake and let her eat. Now with getting back into stock eliminator need to learn new ways of staging/leaving.

TC

[Ed Wright]

Originally Posted by 201250

Thanks Ed ................good input. My experience has been in SS so leave off the tranny brake and let her eat. Now with getting back into stock eliminator need to learn new ways of staging/leaving.

TC

I let FJ Smith to the brain work for me. :-)
Just bought his master cylinder kit and firewall brace for my model car, and followed the enclosed instructions for re-drilling my pedal.

[Sean Marconette]

Maybe I am missing something, but if you are using a LL it is only active for the front brakes and staging the car. What would it matter if you had 8 rear caliper brakes on the rear? Just a curious 3 pedal racer.

Sean

[Wade_Owens]

Originally Posted by Sean Marconette

Maybe I am missing something, but if you are using a LL it is only active for the front brakes and staging the car. What would it matter if you had 8 rear caliper brakes on the rear? Just a curious 3 pedal racer.

Sean

Sean, you can stack the brake pressure by pumping the brake pedal, holding the line loc, and repumping the pedal, then releasing the button before rolling all the way in. Problem is, it still only gives the front more pressure and that's not generally where its needed. I can slide the front tires by doing this because I dont have enough rear pressure. After you get it all figured out, you can stall the right converter VERY high with the std 2 front, 2 rear setup. Believe me, I chased it for awhile.......

Wade

[Ian Hill]

whoooooaaa! i get it. forget i said anything.


i thought the new craze of 6 and 8 piston calipers where for down the top end.....but not so much it seems. i want to try this now, damn snow....i can bring the rpm up to 4800 now, should able to hit mid 5k with more brake. i still only launch at 3400 during the bracket race, but qualifying would be more fun!
Ian