69 Camaro hydroboost Q

[CROMAN69Z28]

Searched but can't find what I'm looking for.
Original front disc /rear drum car now has LS disc on rear.
I have an astro hydro set-up with recommended vette MC. I still have the factory style lines for the disc/drum combo. Will these lines still work? Does the block on the rear brake line, on the frame near driver seat, need to change? What proportional valve do I need to run? Do I need one? Thanks for the continued help.

Chad

[gort69]

If the "recommended" MC is from a late 60's Corvette then your existing lines should be ok.

Here's what I did:

Used the factory distribution block with a shortened bracket to mount it.

Did away with the metering valve (the round one at the MC) and plumbed a line from the front port on the MC to the front of the dist block

Did away with the factory frame mounted prop valve and installed an adjustable prop valve in its place. I had to shorten and reflare one line to get the valve to fit - your mileage might vary.

https://static1.pt-content.com/images/pt/2013/01/P50610811-1.jpg (http://smg.photobucket.com/user/gort69/media/subframe/P5061081-1.jpg.html)

https://static1.pt-content.com/images/pt/2013/02/P4061050-1.jpg (http://smg.photobucket.com/user/gort69/media/subframe/P4061050.jpg.html)

https://static1.pt-content.com/images/pt/2013/01/P4041048-1.jpg (http://smg.photobucket.com/user/gort69/media/subframe/P4041048.jpg.html)

[Typhoon1015]

If your master is a disc/drum and the prop valve is a disc/drum, you should be good to go.

Edit: I see you have rear discs, in my experience, the disc/drum works pretty well as is. I am currently running the same, ls1 discs all the way around, with vette mc and stock disc/drum prop valve. It works good and i have tested it pretty aggressively in a 100 ft launch and stop box, the rears lock up at just the right time. I am however planning on adding a adjustable prop due to the adjustability.

hth

[CROMAN69Z28]

Thanks fellas.

[sevenzeronova]

You need the disc/disc combination valve for proper volume and pressure for disc on all four corners. The adjustable is not needed. Make sure to put the pushrod on the manual hole (upper) on the pedal arm for proper ratio.