Will this work?

[mr jdm]

I was reading around a bit and I think a member was running this setup, but I forgot who. I just wanted to see if this would be a safe setup.

 

I want to get rid of the stock proportioning valve for the brakes. Here is a diagram that I drew up real quick. Btw, plans for the brake setup is front brakes will be 4x4 vented, and rear brakes will be 240sx calipers and 15/16 master

 

[auxilary]

yes, this will work. this is a common swap removing the stock prop valve(s). this is the brake setup i'm running as well (not live now, but what i bought the hardware for)

[AkumaNoZeta]

Is the factory proportioning valve dysfunctional? What the factory one does is make sure the front brakes don't apply before the rears, right? Are people only replacing them so they can tune the bias or because there's something wrong with the factory piece?

[Inferno 08]

The stock proportioning valve is set up for the stock brake setup. When you run different brakes front and back then the bias from the factory proportioning valve is no longer correct, so this is fixed by deleting it and replacing it with an aftermarket adjustable one.

[auxilary]

yep, what inferno said. When you change the amount of pressure/fluid with the new MC, capacity of the brakes, the rears can now lock up before the fronts. by doing what the OP is asking about, the front brakes have a static setting now, and the rears can be tuned proportionally to the rears, so they don't lock up before the fronts do