Reply to "Brake booster"

This thread baffles me... The point of a different booster and different master cylinder bore sizes, is to increase line pressure while reducing leg effort. If the stock booster is good and the master isn't leaking, starting at the booster or master to increase performance is the wrong place to start.

By replacing the booster and master in an effort to increase brake performance is fine except, leaving the stock proportioning valve in the mix is actually lowering pressure to the front brakes. So your increasing master cylinder bore size to increase pressure, then you leave the proportioning valve in the circuit to reduce brake pressure. All for only $450.00. You could do the same thing by leaving the stock master and removing the stock proportioning valve for free!!! However, I wouldn't remove the proportioning valve if the rear brakes are still stock.

Trying to increase brake performance by replacing the master or booster FIRST is completely backwards!!!

If you are on a budget, the CHEAPEST way to get a HUGE performance upgrade is to simply upgrade the rear calipers and remove the proportioning valve. This change alone will pay HUGE dividends in braking performance.

Brake system changes should be done carefully or you will end up with an unbalanced and unsafe brake system.

Scott