Brake Pedal Ratio Question..

[pitts64]

Well my 10" of vacuum to my brake booster almost caught up with me yesterday... I have to do something with these brakes... My car stops good until the last 10'-15' of the stop, then it gets hard "sometimes"..

I was going to try changing the pedal ratio from the stock setting of 6:1 to the manual setting of 3:1 with the booster. Is it the booster that causes hard braking on a stalled power brake car or is it the power brake ratio of 6:1 ?

I'm going to have to go to manual if this doesn't work.

My 3900 lb 64 Bonneville has a new stock 9" booster with a 74 Corvette 1" bore master. It has Scarebird front disc brakes with 12" rotors and 78 Caprice D-52 calipers.. With Wagner organic pads that squeal like metallics..

Any thoughts?

Thank you, Jeff

[pitts64]

I moved the whole pedal down 1" today to change the ratio from 6:1 to 5:1. The difference is superb! I just got back from a nice drive and it was the most fun I've had in the 9 years of ownership.. I feel in complete control of the car now.. The brake modulation is much better too.. It's like having the best of power brakes and manual brakes at once..

I'm starting to wonder if it's the 6:1 pedal ratio that makes the braking hard on low idle vacuum power booster cars like mine and not the booster diaphram.

I'm going to try 4:1 next. But I'll have to have the pedal length cut and shortened..

Every now and then things actually work lol....