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Vaccum Problems!!!


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Guest Phils72
Posted

I knew going into this build that I would have little to no top end vaccum, but just could'nt help myself. Any ideas on more vaccum for brake booster?

 

phil

Guest Phils72
Posted

Need help down loading pics too. What size and dpi do you use?

Posted

Phil,

Vacuum problems suck laugh ....Sorry I can't help you but I couldn't resist a little play on words joke. I am sure someone will be able to assist you. Just a question though, don't some of the cars have a small vacuum reserve canister... Not really sure that is what it is called but I thought there was something like that over near the air conditioning box on the firewall.

Rob

Posted

I take it you have a big cam

 

they make a hydraulic brake booster kit that runs off your power steering pump (I'll look for a link later)

 

an electric vacuum pump is another option...I'm using one from a 80's "X" body, along with a vacuum can for a reservoir

 

 

at wideopen throttle at the big end, you shouldn't have vacuum

 

what's your vacuum at idle?

Guest Phils72
Posted

I,m still in the braking in stages, so haven't check vaccum yet. I have just enough to stop. LoL.

Guest Phils72
Posted

Here's a little info on the motor that may help you help me. It took me 3 months to put this combo together so that I made sure it all would work together.

 

350 Bored 0.30

Speed pro Flat Tops

Edelbrock rpm heads 64cc 170cc runners

Crane Hyd Cam 244 Int 244 Ext .510 Int .510 Ext @.050

Crane 1.5 Roller rockers

Professional Products Power Plus Single Plane 360

Holly 670 Avenger w/vaccum sec NOT GOOD Need more carb 750

2" spacer plate

ProForm Gear Drive

Posted

with that duration on your cam...you do need some help

 

electric vacuum pump and reservoir

 

hydo-boost kit

 

you could try just a reservoir first to see if that helps

Guest ADGTRUNKLID
Posted

Below you can see my vacuum can off to the lower right; although the electric pump would be the best route. Can by compcams

 

site1229.jpg

Guest Phils72
Posted

Thanks guys for all your help. I think I can get a can at Doug Herberts. Your Montes look great. Talk to you soon.

 

Posted

I use the hydro boost system the brakes are great and it is a smaller package than a vacuum booster.

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