Barry
Diamond Level Sponsor
Tom,
On my series 3, I'm restoring, I got a .750 Wilwood girling style master cylinder and a VB 5" lockheed booster kit. Will this combination work well.
Ive rebuilt the front and rear brake system with original parts.
There is no way to be sure without knowing the specific booster hydraulic ratio's, but I suspect that pedal effort with the combination of a 0.750" master cylinder and a 5" Lockheed booster will be about 20% higher than with the combination of a 0.875" master cylinder and a 7" Girling booster.