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-   Pontiac - Boost (https://forums.maxperformanceinc.com/forums/forumdisplay.php?f=495)
-   -   brakes & roots blowers (https://forums.maxperformanceinc.com/forums/showthread.php?t=639820)

73FIREBIRD 07-25-2010 11:19 AM

brakes & roots blowers
 
Running an 8/71 blower on a 440 cid engine. Is there a way to run power brakes with this or do I need to switch over to manual brakes? Thanks for any help you can give

marks73ta 07-25-2010 07:21 PM

Not an expert in any way since I've never had one on a car but the carbs are under vaccum all the time much like the original N/A setup. Unless there are problems with blower surge before the blower I would think it would operate much like an N/A setup. BUT I say, I'm not an expert and am only guessing. Much more experienced guys on the board will chime in I'm sure. I'm more into blow thru turbo stuff and there the whole system is under boost pressure while the turbo is spooled up. It causes problems with power brake systems if you are under boost a lot, such as a road course, and run the brake booster out of vaccum. Mark L

Ollie 07-25-2010 08:49 PM

Do you have power steering? Run Hydroboost They operate from the power steering oil pressure.

thadeal4real 07-25-2010 10:54 PM

your booster should be fine fine but if you run out of juice just run a vac can

73FIREBIRD 07-26-2010 05:28 PM

Thanks for all your imput. I am taking it out of the tubbed 73 firefird & putting it into the 80 & wasn't sure what would happen when it goes into boost. With the cam that is in it I just don't know if it will have enough vacume to support the brakes

ELKHORNAOG7 07-28-2010 09:25 PM

Buy an aux. vacuum pump and hook that to your brakes this way you will always have vacuum-----BOB


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