A better brake idea?

SY2455

70's Veteran
I had to replace at last the front and rear brakes on our 2001 GMC Safari with 150,000 miles. So while I work on the van at my friends shop, a 2003 Chevy pickup comes in for a transmission and engine oil change. While my friend is refilling the fluids I notice a little pump mounted on the vacuum booster for the brakes.

If this is in fact a vacuum booster pump it should work great for us to increase braking ability with the larger cams without using hyd assist from the steering pump. The booster pump was small at 2.5 " wide and about 6" long. the pump was mounted on the booster and the out let from it connected to the hose that would normally go to the intake. Here is a link to the vehicles that it is used on.

http://198.208.187.182/internet/VehiclePartFits.jsp?autosel=A&part=178-676

As you can see they used on alot of trucks from 2003 to 2007. I was not able to find a picture of it however. Has anyone look into this?
 
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Bill Z

Donating Member
Re: A better brake idea?

SY2455 said:
I had to replace at last the front and rear brakes on our 20001 GMC Safari with 150,000 miles.

I would have figured that they would have eliminated the truck and breaks by the year 20001.
What is IBM & HP stock selling for in 20001?

My son built this radical SBC that had no vacuum at idle so he installed a vacuum pump to have breaks. It worked OK. The trick isn't extra assist on the break peddle but more surface area on the break pads to hold just before launch.

Hope this helps some.
 

MikeRenz

not stock
Re: A better brake idea?

Bill Z said:
I would have figured that they would have eliminated the truck and breaks by the year 20001.
What is IBM & HP stock selling for in 20001?

My son built this radical SBC that had no vacuum at idle so he installed a vacuum pump to have breaks. It worked OK. The trick isn't extra assist on the break peddle but more surface area on the break pads to hold just before launch.

Hope this helps some.
If you're gonna rag on him for saying 20001 than i'm gonna do the same for you not knowing the difference between "brakes" and "breaks" :lol:

vacuum assist is fine until you are making boost...then you lose the help. Thats one reason setting the brakes as hard as possible w/ a neutral rev helps out for a launch. Manual brakes or hyrdoboost....or vacuum assist that isn't feeding from manifold vacuum...will be beneficial over the stock setup for launching.
 

Bill Z

Donating Member
Re: A better brake idea?

MikeRenz said:
If you're gonna rag on him for saying 20001 than i'm gonna do the same for you not knowing the difference between "brakes" and "breaks" :lol:

vacuum assist is fine until you are making boost...then you lose the help. Thats one reason setting the brakes as hard as possible w/ a neutral rev helps out for a launch. Manual brakes or hyrdoboost....or vacuum assist that isn't feeding from manifold vacuum...will be beneficial over the stock setup for launching.

Touche!!
 

SY2455

70's Veteran
Re: A better brake idea?

Bill Z said:
I would have figured that they would have eliminated the truck and breaks by the year 20001.
What is IBM & HP stock selling for in 20001?

My son built this radical SBC that had no vacuum at idle so he installed a vacuum pump to have breaks. It worked OK. The trick isn't extra assist on the break peddle but more surface area on the break pads to hold just before launch.

Hope this helps some.

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I seen this when I got to work this morning, that will teach me not to be in such a hurry to make a post so I can get on with other things. Oh and by the way, if you don't already own IBM & HP stock it will be to late in 20001. For your information in 20001 the cars & trucks will be power by Saltwater that is treated to Radio Frequency Waves making the saltwater give up the hydrogen gas which will then be burn much like gas is today. The only thing that will be different is the cost being the earth is 70% saltwater.
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MikeRenz said:
If you're gonna rag on him for saying 20001 than i'm gonna do the same for you not knowing the difference between "brakes" and "breaks"
icon_lol.gif


vacuum assist is fine until you are making boost...then you lose the help. Thats one reason setting the brakes as hard as possible w/ a neutral rev helps out for a launch. Manual brakes or hyrdoboost....or vacuum assist that isn't feeding from manifold vacuum...will be beneficial over the stock setup for launching.

Mike, the booster pump was mounted on the vacuum assist and the only thing it helped was the brakes. The outlet from the pump is connect to the intake.
 

MrNurse

i'm no homo
Re: A better brake idea?

you the problem with saying there is enough salt water and the cost will be down, is that in 20001 min wage will start you out a year at about 21,000,000 maybe if you only work like part time 20 or so hours a week, a cup of coffee will be about 20,000 and a house will be starting around 100,000,000,000,000,000,000,000,000,000 and that will be for a starter home, being that the planet will be a waste and your house will be on planet gougple IV in another solar system and it wont be called a "dollar" it will some kkind of metal that liquifies into the shape of an apple or someother fruit when you spen it. that way the police will know if you spent that money and .....oh hell i shouldn't start drinking this early in the day. never mind
 

SY2455

70's Veteran
Re: A better brake idea?

MrNurse said:
you the problem with saying there is enough salt water and the cost will be down, is that in 20001 min wage will start you out a year at about 21,000,000 maybe if you only work like part time 20 or so hours a week, a cup of coffee will be about 20,000 and a house will be starting around 100,000,000,000,000,000,000,000,000,000 and that will be for a starter home, being that the planet will be a waste and your house will be on planet gougple IV in another solar system and it wont be called a "dollar" it will some kkind of metal that liquifies into the shape of an apple or someother fruit when you spen it. that way the police will know if you spent that money and .....oh hell i shouldn't start drinking this early in the day. never mind

You get the idea.:rotf: :rotf: :rotf: :rotf: :rotf:
 

WyoSyclone

Active member
Re: A better brake idea?

Yup, I'd be interested in seeing the original question answered.... having this setup work in a boosted config is the real question I guess... sounds like somebody needs to do some experimenting :D
 

SY2455

70's Veteran
Re: A better brake idea?

WyoSyclone said:
Yup, I'd be interested in seeing the original question answered.... having this setup work in a boosted config is the real question I guess... sounds like somebody needs to do some experimenting
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Well that why I posted it, but being I was in a hurry when I did post it. I screw up by put the wrong year in for our van and it went down hill from there. I found it interesting that the later model truck had a pump that small on them just to assist the braking effort.

Here is another source that gave price, but still no picture. The 1st one shows 2006-2007, the 2nd shows the 2003-2005 models. I need to call my parts guy and look into this. I find it note worthy that for 2006-2007 they list 2 different part numbers (1 for 2WD, 1 for 4WD). I wonder what is different between them?

http://www.gmpartsdirect.com/catalog/frameset.cfm
Description ---------Year -------------------------------------MSRP Price Core Price Your Price

Brake booster, all models, w/o 4wd 7,200 gvwr 06-07---$249.00-------- 0 ----------$129.48

Parts & Prices For Estimating Purpose Only.

Brake booster, all models, w/4wd 7,200 gvwr 06-07---- $275.82--------- 0 ----------$143.43

Parts & Prices For Estimating Purpose Only.

Description -------------Year--------------------------------- MSRP Price Core Price Your Price

Brake booster, all models 03-05---------------------------- $275.82 ------------0----------- $143.43

Parts & Prices For Estimating Purpose Only

 
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