Funny.... when you buy a 1969 Camaro Brake pedal assembly - it has two holes from the factory -- Manual -- and Power....
It's only about a 1 inch difference and the angle of the pushrod is hardly an issue. The pushrod swings thru an arc regardless - it doesn't go straight in and out. The pedal pivots thru an arc....
The difference between a power booster and a manual is taken up in the ANGLE of the mounting at the other side of the firewall.... the power booster is usually tilted back (at the top) slightly due to the LOWER hole in the brake pedal being used (less ratio).... and the manual is usually mounted flat - and uses the "upper" hole (more pedal ratio).
Quote:
Originally Posted by Hydratech
Note that the brake pedal rod MUST enter the master cylinder dead on straight in a manual brake scenario. Discussions of drilling different holes in the brake pedal in efforts to alter brake pedal ratios are not valid because the brake pedal rod will then enter the backside of the MC at an inappropriate angle causing linkage bind, MC failure from extreme side loading of the pistons, and even possible complete failure of the brake pedal rod linkage entirely.
Summary? You MUST keep your brake rod connection in the factory manual brake top hole - no if's, and's, or but's about it.
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