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Old 10-20-2013, 09:06 PM   #1
72blazer_mud_bogger
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Talking vacuum pump brake booster help

So I think the 383 stroker is not making enough vacuum to stop my blazer on 37s with a 14bolt sf in the rear and 10 bolt in the front. New booster, new master, wilwood adjustable prop valve. At idle she barely stops so I had thought a out putting a canister and vacuum pump on to see if she stops. First question is did I just miss something and please let me know if you need any info. I will answer what I can. Second question can I use one of 80s style air pump that runs off the belt as a.vacuum pump. Thanks guys

Scott
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Old 10-22-2013, 07:55 PM   #2
SACRAMENTO 71
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Re: vacuum pump brake booster help

Hey 72 BLAZER MUD BOGGER, not much help, BUT wanted to say HI.

Vienna, VA is a fav spot of mine. I have a Uncle that lives on Marshall, off the Nutley exit and I have closed down the V.I (Vienna Inn) many, many, MANY TIMES! Love that place!

I grew up in Chantilly, VA, till i was about 9, all my family is back East! Wish I lived there now (except I can keep my top of from May till Nov!!!!!!).

Either way, hope you figure your problem out! Nick
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Last edited by SACRAMENTO 71; 10-22-2013 at 08:00 PM. Reason: DUMB ASS
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Old 10-22-2013, 10:11 PM   #3
72blazer_mud_bogger
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Re: vacuum pump brake booster help

it would seem that I live just down the road from your uncle, I live one light up from him off Nutley going towards Vienna. small world. u ever make it back this way let me know and the next time I am in your neck of the woods I will let you know.

scott
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Old 10-23-2013, 01:15 AM   #4
SACRAMENTO 71
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Re: vacuum pump brake booster help

Will do Scott, and your right, it is a small world, Nick
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68 C10 SWB W/ 72 FRONT CLIP 343SB TH400
64 C10 SWB 406SB TH400
74 SUBURBAN 454BB TH400
78 K10 SWB 350 TH350 6" ON 35" BFG MUD
71 K5 350 W/ TBI 700R4 6" ON 38" BFG MUD
00 K3500 DRW BIG BLOCK "DRINKING PRBLM"
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Old 10-23-2013, 01:14 PM   #5
wilkin250r
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Re: vacuum pump brake booster help

It's certainly possible, but I read your post three times and I still don't see the biggest piece of information.

What kind of vacuum pressures are you reading at idle right now?
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Old 10-23-2013, 06:40 PM   #6
72blazer_mud_bogger
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Re: vacuum pump brake booster help

Someone asked me that today and I realized I never checked it. Give a few days to get the carb back on and somewhat tuned and I will let u know
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Old 10-24-2013, 12:24 AM   #7
SoCalK20
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Re: vacuum pump brake booster help

Why not consider dumping vacuum system and step up to Hydroboost set up. You get real braking force and don't have to worry about "enough vacuum". Good luck.
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