Hot Rod Forum : Hotrodders Bulletin Board

Hot Rod Forum : Hotrodders Bulletin Board (http://www.hotrodders.com/forum/)
-   Suspension - Brakes - Steering (http://www.hotrodders.com/forum/suspension-brakes-steering/)
-   -   Power Brakes upgrade - what is the reason for disc/disc, disc/drum & drum/drum (http://www.hotrodders.com/forum/power-brakes-upgrade-what-reason-disc-disc-disc-drum-drum-225190.html)

JohnnySkills 10-19-2012 08:27 PM

Power Brakes upgrade - what is the reason for disc/disc, disc/drum & drum/drum
 
I've got a 1957 GMC 9300 (Chevy 1/2 ton) with 4 wheel drums. Soon, I'd like to upgrade to IFS which would include an upgrade to disc brakes. Eventually I would like to upgrde to disc brakes in back too. But for now, I want to simply upgrade to power brakes.

The power brake kits are available for Drum/Drum, Disc/Drum, and Disc/Disc applications. Why is there a difference? Is it simply the proportioning valve? or is there something else like ti will blow the brake cylinder in the drum brakes. I was going to simply order the Disc/Disc kit but am leary.

PS. I'd call them, but it's usually late and they are closed.

Thanks,

Mike

swvalcon 10-20-2012 12:14 PM

generally its the residual valve thats in the master cly that keeps a small amount of pressure on the drum brakes.Its not needed on disc brake set ups. On most master cly its just a matter of going into the master cly and removing it if not needed.

timothale 10-20-2012 08:44 PM

chamber volume.
 
chamber volumes are different for the Dual chamber M/cyls, depending what it is, I have heard of one of the chambers going dry when you apply the brakes with the wrong M/C


All times are GMT -6. The time now is 12:26 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.