this is weird, i just looked at my prop valve on my crx and it says 2040. its a 91 crx si with 4 wheel disc stock. i thought they were 4040. so what does this mean? what actually changes when you change to a different prop valve? im thinking i might want to go with a 40/40 but im not sure. i want to fully understand this.

 

I got a 90 Si porp valve and its the same thing. 20/40

The DX one that I had on my car was like 17/35. Theres a noticable different. The rear tires lock up as oppose to the front. Which means when the car is under heavy breaking the weight is transfered to the wheels that aren't locking up. Thus, creating a better skidpad result.

 

i know what it does, but i want to know how it works. and if going to the 4040 would be worth it over the 2040

 

The 20/40 is refering to the predetermined pressure the proportioning valve stops fluid flow to the rear brakes.

 

so what will change when i switch to a 4040? how will the braking be different?