what brake boosters work

by McCauley5983 Sat Sep 03, 2011 8:52 pm

ideally it sounds like an 11 inch booster is the best but what are the differences and which ones fit our cars

by TWBouska AKA Wooderson Sat Sep 03, 2011 11:37 pm

id go with the astro van hydroboost swap honestly

http://www.carcraft.com/techarticles/ccrp_1105_chevy_astro_van_hydroboost_salvage/index.html

by TWBouska AKA Wooderson Sat Sep 03, 2011 11:38 pm

i plan on doing it on on my car whenever i finally get time to hit the junkyards again

by McCauley5983 Sun Sep 04, 2011 12:31 am

im not swapping my steer box i just put that thing in and when those things start to leak forget about it

by TWBouska AKA Wooderson Sun Sep 04, 2011 4:15 pm

im going to be upgrading my box pretty soon anyways, and yeah it does suck when they leak, im just going to pull two and have an extra ready to go when one fails

by pila Sun Sep 04, 2011 8:43 pm

That hydro-boost would help with the close clearance I have in my Elco project. The left rocker (valve) cover is only 5/8" from my booster.
And not only the Elco, but my old '85 Caddy beater has crappy brakes, even with all new parts in the system. It needs something drastic, and that set-up looks like the answer.....

The 11 inch seems to be the most common for '73 to '77 GM..

by TWBouska AKA Wooderson Sun Sep 04, 2011 8:49 pm

i think hydroboost is the way to go man, so what if it leaks? thats what they make degreaser and pressure washers for. i can run whatever cam i want and not worry about brakes being effected..and yeah the clearance helps too like Pila said, although i have no problem with that currently

by McCauley5983 Sun Sep 04, 2011 10:30 pm

1,000 dollar price tag no thanks ill work my leg out and go manual brakes before i do that

by jerry46765 Mon Sep 05, 2011 12:51 am

If the engine stops turning, you have no power brakes.
At least with a vacuum booster, you get a couple pumps when the engine is cut off.

Why reinvent the wheel?

It isn't like your braking stopping distance is better.
And do you really want to use engine power for an easy brake pedal?

Thanks -

by TWBouska AKA Wooderson Mon Sep 05, 2011 11:19 pm

good points, but i still stand by my point, i dont care about engine power too much personally, my motor has plenty of get up and go and honestly how much power is it really going to "rob" me of? not enough to notice.

by jerry46765 Tue Sep 06, 2011 12:47 am

That's the great thing about hot rodding, you can do what you want.

If you look on new trucks, they are going to electric vacuum pumps for brakes... no longer hydro...

I run an 11" vac booster and a canister to cover the camshaft.

It's simple and it's worked forever.

Thanks -

by oldstofty Tue Sep 06, 2011 10:36 am

I run manual brakes and steering on my car, but its not something you would want to use as a daily driver

by The Dude Tue Sep 06, 2011 11:18 am

How bad is manual steering on our cars? I got a manual box to swap on, just contemplating whether or not it's worth the hassle. FWIW, I have dealt with manual steering on an older A Body & it wasn't too bad. Got a good workout trying to park, but nothing too major.

by jerry46765 Tue Sep 06, 2011 12:36 pm

With manual steering, less caster and narrow front tires will make it easier to steer at low speed.

In a newer car, they are almost impossible to drive w/o power assist because of the amount of caster added to self-align the front wheels straight with little or no effort (for our driving safety).

Also depends on scrub radius in the front suspension as to the amount of effort involved. Wide wheels with big offsets in the front wheels will also make it a monster to parallel park.

Manual steering could be done with slight alignment changes and narrow front tires with zero offset wheels.

But the original question was brakes...

by The Dude Tue Sep 06, 2011 1:26 pm

LoL, yeah I know. Sorry about pirating the thread Billy-Ray. Just wondered how much worse a G3 was than a G2.

IMHO as far as brakes go, our cars are good enough from the factory if you get the larger rear drums from a 76-77 car & slap on a set of good pads up front. If you are running too big of a cam to run power brakes, then Jerry has the right idea with a reserve canister.

Didn't the Olds diesel powered cars have some sort of belt driven vacuum set up? Could be an idea if you run across one in the salvage yard.

by JB2wheeler Tue Sep 06, 2011 3:13 pm

When cars started having almost universal power steering is when they started putting smaller steering wheels on cars. With manual steering, larger steering wheels really helped. JB

by jerry46765 Tue Sep 06, 2011 4:53 pm

Yeah, I didn't even think about the steering wheel...
That is a good point.

by pila Tue Sep 06, 2011 10:22 pm

The last car I had with manual steering was a '59 Pontiac that I bought new. We didn't think it was a big deal back then, but when ya get older........ Very Happy

And I agree that the OEM brakes are fine on these cars. I couldn't tell the difference when going from 9.5 to 11 inch drums on the back. We just have to keep them working right.

by McCauley5983 Tue Sep 06, 2011 10:54 pm

I'm running 4 wheel disk brakes the biggest reason for the booster is because a lot of companies are selling the same part number for different body styles. i.e. camaro earlier gen chevelles and others but the mount bracket looks different now how is the booster gonna work if the mount is riveted on and its different but the same part number

by pila Wed Sep 07, 2011 10:17 pm

Good question. I see that Summit sells mounting brackets and universal boosters.

by McCauley5983 Wed Sep 07, 2011 11:22 pm

ok bought a booster today older style wont work Mad

gonna return it when i get time and try something else. the cpp one is universal but im afraid it might slide down but not sure. trial and error seem to be my best friend

by McCauley5983 Fri Sep 09, 2011 12:25 am

ok exchanged booster today for a universal dual 8" booster had to make bracket using old booster. now i have to fab up an extension to connect to pedal and i should be back in bussines

by McCauley5983 Fri Sep 09, 2011 12:26 am

if im ever able to post pics ill try

by McCauley5983 Fri Sep 09, 2011 12:28 am

if anybody ever needs help installing a cpp booster let me know its easy i might even put together a kit if anybody is interested

by Limey SE Fri Sep 09, 2011 10:11 am

billy-ray wrote:if im ever able to post pics ill try

BILLY-RAY ===>> https://www.g3gm.com/t1052-how-to-post-pictures-take-two?highlight=post+pics

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