drum brake question

[Ron Gusack]

It's like a different car. Held 3200 easily. If I deep stage and launch in the
3-3200 range my lights are respectable. Thanks for all the helpful tips.

[G Anderson]

Ron:what brand of brake shoes and what type of lining are you using ? Thanks Greg

[John Leichtamer Jr]

If your using an e-brake make sure the cable is letting the lever return fully.


Hammer

[Ron Gusack]

I used Bendix shoes, part number 245 and 246 that have organic linings. I talked to Bendix and the lining material varies depending on when the shoes were made. They all have some metal in them according to the tech I talked to. When I got these I stuck a magnet on them and it barely had any pull.

The downside for me was that I had lots of vibration after the finish line if I put a little to much pressure on the pedal. I was advised to run the front brakes the standard way and that fixed the vibration, but now the car creeps through the beams again.

There's no E-brake on the car.

[Jim Cimarolli]

Are you using the stock 9 1/2 inch rear brakes?
You can get an 11 inch rear brake set-up off of a Monte Carlo, or a GM mid sized car of the same body designation. I got a set off of a 77 Pontiac LeMans.

[Run to Rund]

Try some custom linings with a better coefficient of friction, rather than using standard low quality linings and more lining surface area. See my post about Ott's use of premium Abex linings. Hopefully that will help you. Also, you can't expect optimum performance before the linings are fully seated (worn in) to the drums.

[Ron Gusack]

Originally Posted by Run to Rund

Try some custom linings with a better coefficient of friction, rather than using standard low quality linings and more lining surface area. See my post about Ott's use of premium Abex linings. Hopefully that will help you. Also, you can't expect optimum performance before the linings are fully seated (worn in) to the drums.

I talked to Ott's before getting the Bendix shoes. I can't remember who I talked to, but he wasn't real helpful. He told me I had to send them metal. which I didn't have at the time. Now that I have some, I'll try to call them again.

[G Anderson]

Working on my Camaro rear brakes now---are their any Oversize wheel cylinders that are a bolt in fit (without modifying the cylinders them selves or the backing plates) OEM is 7/8" Thanks Greg

[bigfoot584]

Originally Posted by G Anderson

Working on my Camaro rear brakes now---are their any Oversize wheel cylinders that are a bolt in fit (without modifying the cylinders them selves or the backing plates) OEM is 7/8" Thanks Greg

Come on give us a clue, what year, they made that car for 47 yrs.
Maybe someone can help then.

[bigfoot584]

Originally Posted by Ron Gusack

Thanks for all the help and tips. I got them on, but had to use one of my old secondary shoes to allow me to get the drum on. The lining was about .050 thinner and the drum went on easy.

The lead edge of the shoe in the primary position would be the edge nearest the top, right?

I put secondaries on the fronts also. The pedal has so little toe play that I feel like I'll have to drive around the pits to get used to it. Is there a spec for free travel on the brake pedal?

The leading edge of the primary shoe is top of shoe towards front of the car, you want to be sure master is fully returned, then you should have approx. 1/4" free play,
Ron, what master are you using now do you know what piston size is ?