brakes

[cutlassmann]

I recently installed Power Disc brakes on the front and rear of my 1972 cutlass. The car has a mild cam, and is not proucing enough vacuum for the brakes. What is the best way to solve this problem? What's An good electric booster? Are do you have another idea but I want to keep my engine bay neat and clean and don't want to spend a lot.
Thanks in advance for your help!

[uxojerry]

Hydra-Boost is the most common.



A line will be run from your PS pump to the Hydra-Boost for plenty of braking power.

[Quickboat]

Which unit are you running? What are the best OEM units to use? I know the early 80's G body's used a variation.

[uxojerry]

The one in the photo is Hydra-Tech and was something like $800. Smarter guys than myself have fabricated their own using a booster from an old Astro minivan. They bought all of the parts from a junkyard for $150 or so. Their unit looked just as good as the one in the photo.

[Quickboat]

I heard applying the brakes can affect the steering feel with hydraboost, is that true at all?

[uxojerry]

Not sure, my car isnt finished yet.

[astroracer]

I heard applying the brakes can affect the steering feel with hydraboost, is that true at all?

No, not true IF your system is set up properly with the correct sized components. I have been driving hydro-boosted Astro's for 12 years with no noticable steering affects when applying the brakes.
If you go junkyard shopping look for anything before '97. GM changed the angle of the booster on the firewall and (I think) '97 was the 1st year for them. These boosters point down, toward the front, at about a 15 or 20 deg angle. The previous years came straight out of the firewall. I am using a '95 unit on Bad Ast and it bolts right up.
Mark

[Quickboat]

No, not true IF your system is set up properly with the correct sized components. I have been driving hydro-boosted Astro's for 12 years with no noticable steering affects when applying the brakes.
If you go junkyard shopping look for anything before '97. GM changed the angle of the booster on the firewall and (I think) '97 was the 1st year for them. These boosters point down, toward the front, at about a 15 or 20 deg angle. The previous years came straight out of the firewall. I am using a '95 unit on Bad Ast and it bolts right up.
Mark

I guess with a first gen Camaro install there isn't such easy bolt up? Do you know if my 1" bore (Corvette) manual master cylinder can be used?

[astroracer]

I guess with a first gen Camaro install there isn't such easy bolt up? Do you know if my 1" bore (Corvette) manual master cylinder can be used?

Not sure about either. Someone that has done the swap will chime in. Maybe make a new post to ask that question. I do know most of these bolt patterns have been the same for years so maybe you'll get lucky.
If you want to add a vacuum reserve canister to your current set up that may be all you need. I ran a very lumpy cam in my '73 Firebird for years with just a vacuum canister hooked up. Worked like a charm.
Mark