brake bias settings

[ydeardorff]

I have talked with Radek in regard to this.

According to him, (he had to get engineering approval to get his car on the road). The brake bias must be reversed from what is considered standard. That is placing your primary (what would be the front) circuit to the rear, and the secondary circuit (usually to the rear wheels) to the front.

From his explanation it dramatically improve the braking if the car due to the heavy rear weight bias of the drivetrain.

So we should all take a note from this. His car is complete and on the road. The engineers approval also give additional merit to this decision to do this. And finally, the fact that the braking was improved is another thing to take note of.

 

[islandman]

I have talked with Radek in regard to this.

According to him, (he had to get engineering approval to get his car on the road). The brake bias must be reversed from what is considered standard. That is placing your primary (what would be the front) circuit to the rear, and the secondary circuit (usually to the rear wheels) to the front.

From his explanation it dramatically improve the braking if the car due to the heavy rear weight bias of the drivetrain.

So we should all take a note from this. His car is complete and on the road. The engineers approval also give additional merit to this decision to do this. And finally, the fact that the braking was improved is another thing to take note of.

If you have brake bias valve, or a pedal box with a brake bias bar you can easily adjust to suit.

On my first Nova I added a brake bias valve which I adjusted so the front wheels lock up momentarily before the rear do

 

[Brett Proctor]

Can you guys recommend any brake bias controls that would work best in our cars or that you prefer better than others.

 

[ydeardorff]

Im going to be using this:
02 03 Subaru Impreza WRX Brake Proportioning Proportional Valve | eBay

 

[islandman]

This is what I used, its got 5 positions to choose from

Wilwood Brake Proportioning Valves 260-8420 - Free Shipping on Orders Over $99 at Summit Racing

Its worked ok, except for once when I changed all my fluids after 20 years and some dirt jammed it. Took it apart, cleaned it and its still in the car doing its job well

 

[islandman]

Im going to be using this:
02 03 Subaru Impreza WRX Brake Proportioning Proportional Valve | eBay

How do you adjust the bias on that, it just seems to have 2 inlets, 2 outlets and a mounting nut?

 

[Brett Proctor]

How do you adjust the bias on that, it just seems to have 2 inlets, 2 outlets and a mounting nut?

I was wondering the same thing, plus using a oem one, wouldn't that be setup for that car which is much heavier and different geometry than a sterling and has abs brakes that maybe tied into the system

So far I haven't found one I like. Most seem to be just restrictors and not something that directs the flow from front to rear or vice versa.

Using the restrictor method eventually the pressure will equalize, your just slowing down the flow till it pressurizes the line then it will equalize with the rest of the system.

Well I got time to research this. Its not on my top ten list of things to do.

 

[Peter]

Working on the basis that up to 60% of the weight is normally at the rear but when the anchors go on half that shift to the front I'll stick with big buggers up front thanks.*nothing to see*