drum brake wheel cylinder bracket for gm g body

The most efficient braking is not on a corner where a tyre is trying to control lateral acceleration and deceleration in the same tyre footprint. Īs for the rears locking up first causing cars to spin out? If the front locks up you lose 75% braking. If for example you do a panic stop that causes 25% weight transfer to the front The front brakes now have 75% braking and the rears only 25%. Tyres don't work on co-efficient of friction they Grip which is why G forces exceeding 1. Wheel lock-up is equal No brakes for that particular wheel Sure this is competition, but in the real world an emergency braking situation is the same If they aren't, some young 'hotshoe' will be passing them under the brake zone. Those guys are at maximum braking at every corner entry. Brake Booster, 1967-72 A-Body, w/ Drum Brake Master Cylinder. With the Brake lockup question! You need to talk to Road Racers. Discover high quality Master Cylinders & Boosters parts and high performance accessories. My M/C only has a single Flare Nut straight into the M/C casting. It is at the limit of tyre adhesion where Fr/Rr bias problems rear it's ugly head.Ĭlick to expand.If 55-57's had an internal residual (check valve) in the master cylinder, it must be very small.

You need to think from the tyre footprint backwards.

If you proportioned the brakes correctly for panic stopping in dry conditions, In the rain or other less ideal conditions you would have front wheel lock up Which is more dangerous Manufacturers had the brakes proportioned for lower G force stopping ,then added a pressure limiting valve to prevent rear wheel lock up during 'Oh F**** 'moments.ĥ7 chevys do not have any proportioning valves, or residual valves in the system You might need a slightly smaller wheel cylinder to reduce clamping pressure. Less G forces = Less weight transfer onto the front. Go and try your car on a slightly slippery surface and see which end locks up first. They had a smaller friction surface on the front shoes. Click to expand.The 57 had narrower 1-3/4' shoes on the rear compared to 2' shoes on the front Ĭhevy stamped a different offset backing plate for the narrower rear drums so you cannot swap front shoes into the rear.

Drum brake wheel cylinder bracket for gm g body