Brake master cylinder question

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Dec 29, 2020 | 03:58 PM

ProCycle

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Racer

Joined: Jul 2011

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Brake master cylinder question

Hey folks, I'm using a C7 brake master cylinder in a custom hot-rod project.
Can anyone tell me for sure which port goes to the front brakes and which to the rear?
Thanks!

Dec 29, 2020 | 10:48 PM

Widgeon5

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From: Indiana

The split brake system operates diagonally, not front and rear. One system has LF and RR, the other RF/LR.

Dec 30, 2020 | 12:17 AM

ProCycle

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Racer

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That implies that each circuit is equal? I found one diagram for bypassing the ABS that showed the port marked with "25" would go to the front.

Dec 30, 2020 | 11:43 AM

Widgeon5

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From: Indiana

I am all but certain that the two circuits are the same, but my knowledge doesn't go much deeper than that.

Dec 30, 2020 | 11:47 AM

ProCycle

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Racer

Joined: Jul 2011

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Quote:

Originally Posted by Widgeon5

I am all but certain that the two circuits are the same, but my knowledge doesn't go much deeper than that.

I vaguely recall hearing about diagonally split brake systems but wasn't aware the C7 was set up that way. After doing some reading I can see it doesn't matter which port I use for front or rear. I can plumb it the simplest and cleanest way.
Thanks.

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