Draco-REX Posted June 30, 2009 Report Share Posted June 30, 2009 ... No, not that kind. This is The Passing Lane.. Anyways, I was flipping though the Jegs catalog and saw these. Running a turbo car, I run out of vacuum for braking REAL fast. If I'm under boost and left-foot braking I get one, maybe one and a half pumps before I'm out of vacuum. A canister is another possibility, but that could run out on long corners as well. A separate vacuum source for the brake booster seems like a great idea. Has anyone here used them before? What are their downsides? And do they make enough vacuum to be the only source for a brake booster? Thanks. Quote Link to comment Share on other sites More sharing options...
AJ Posted June 30, 2009 Report Share Posted June 30, 2009 you have to wire them in so they don't run all the time. idealy you would need to find a vacuum switch that will trip a relay when you get low vacuum to turn on the pump. you should still get a canister as well since the vacuum pumps don't pull the vacuum fast enough for what your wanting to do. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted June 30, 2009 Report Share Posted June 30, 2009 (edited) double canister setup, with a one way check valve.(so that way your dont shove boost into the cans.) you can get a check valve from any gm brake booster at the junk yard, and the electric vacuum pumps dont pull alot of vacuum..depending on which one your looking at and or talking about. edit..look like the kit from ssbc comes with a relay and vacuum switch, not sure tho. may want to check their website for more details on the kit. Edited June 30, 2009 by Removed Quote Link to comment Share on other sites More sharing options...
Draco-REX Posted June 30, 2009 Author Report Share Posted June 30, 2009 OK, thanks. Looks like the pumps won't really get the job done. I guess Canisters it is. Quote Link to comment Share on other sites More sharing options...
BDHG940 Posted July 1, 2009 Report Share Posted July 1, 2009 if you go the pump route, my dad has them made, pm me I can get you taken care of way cheaper than anywhere else around Quote Link to comment Share on other sites More sharing options...
Guest Hal Posted July 1, 2009 Report Share Posted July 1, 2009 Interesting thread, I never thought about vacuum loss like that. Does anyone know what kind of vacuum the pumps will pull? Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted July 1, 2009 Report Share Posted July 1, 2009 Interesting thread, I never thought about vacuum loss like that. Does anyone know what kind of vacuum the pumps will pull? tha would depend on the pump...from what i understand..not alot Quote Link to comment Share on other sites More sharing options...
ruinms Posted July 1, 2009 Report Share Posted July 1, 2009 the ssbc is the best kit out. it is very popular with street rod guys. the pressure switch is sold by itself also. the jegs kit sales really well also because of the price. not alot of returns on them either. Quote Link to comment Share on other sites More sharing options...
Trouble Maker Posted July 1, 2009 Report Share Posted July 1, 2009 with a one way check valve I would think his car would have to have a check valve in it already, all boosted cars much have to, so he doesn't shove boost into his brake booster. So as long as he puts the canisters in after his check valve (as long as his stock one isn't built into the brake booster, which they sometimes are), he should be all good. With there being non-boosted versions of his car, I wouldn't be surprised if the master power was a common part and they just make a different vacuum line with a check valve in that line somewhere. This is obviously just speculation though and he would need to know, or do some research on this. Quote Link to comment Share on other sites More sharing options...
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