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.

 

You will never get an answer as to what the numbers really mean from a verifiable source!! I've tried!!!

What you want to do is use a proportioning valve from a car that has a similar brake configuration and similar front to rear weight bias.

The 4040 is the valve most commonly used. Just get one and be happy or you will tend to just go crazy worrying about it.

Wes

 

well we've had a thread going about this on hondaswap, and someone on there has taken many of them apart and really can only see a difference in the springs on the inside. i thought maybe someone would have done something similar over here. im just confused on what they actually do, and how they actually work. like what exactly will change in the brake setup or how it works by switching prop valves?

thank you for your insight wes.

 

The 2040 is from a CRX Si with 4 wheel discs.
The 4040 is from an Integra with 4wdb.


I'm sure there is a difference but it is probably one of those things you'll never notice 99% of the time.