Re: 1953 Patrician: has anyone updated from Treadlevac to modern 2-chamber mstr cyl?
Posted by Mopar_Earl On 2023/11/29 14:45:17
Quote:
Packard Don wrote:
Here’s an example of a modern booster on a 1956 but it makes the pedal too high and too far from the floor to be safe so it is being converted back to stock. With it so high on the firewall, I am not sure how the pedal ratio was achieved.
The pedal from floor distance could be changed by adjusting the booster rod or using a different length adjustable rod. The pedal height, you'd have to extend the pedal or use a longer pedal. Ratio is the distance from the center of the pedal pivot point to the middle of the footpad, divided by the distance from the pedal pivot to the master cylinder or booster rod connection on the pedal.
There is a thread on here of the same setup you have. He used the original pedal and lengthen it.
My 52 Dodge Coronet, you have to lift your foot off the floor to use the brake or clutch. Factory frame mounted pedals. There is no just pivoting your foot on your heel from the throttle to the brake like modern cars. That was a new thing when those treadle-vac units came out. No more lifting your foot off the floor to brake.
Earl
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