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Author Topic:   brake master cylinder question
posted October 27, 2003 08:48 PM
I thought I read on here. If you switch the main lines on the MC then it will put more brake to the rear. Has anyone tried this and does it work?

Jason Boivin

posted October 28, 2003 12:13 AM
no they are separate in case of a failure, not for a different bias.

oem disc have little to no slop, while drum have a lot, thats why your fronts work firts and or better, and do most the stopping on the street.

slops not the right word, more like amount of movement needed to activate??

posted October 28, 2003 11:24 PM
To achieve rear brake bias where rules don't allow after market parts do this. Put a crossover line between the front and rear lines up close to the M/C. This makes an H. Both front and rear will then have the same pressure. This is not adjustable but it is close enough to work well. I have used this method even when rules don't make me, dollars you know!

The reason it works this way is because rear drum brakes are 'self energising'. while the front discs are not. Drum brakes will have a leading shoe. It works kinda sorta like a pipe wrench, the tighter you pull the tighter it gets.

posted October 29, 2003 02:08 PM
if car has no rf brake,do you need lf brake to turn car into corner?if so how much?tacky track or dry slick,what is optimum bias?

posted October 29, 2003 02:49 PM
i switched the brake lines on my MC and it seemed to help the back brakes stop better. there were times when sitting at an idle with my foot on the brake and in gear(6.33's) the rear tires would start to spin. put new brake shoes, and adjusted up. samething. switched lines , no more problem, plus front brakes dont lock up, when i apply the brakes, easier to keep control of the car when front tires arent skidding on the track

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