roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: Vacuum for a brake booster, manifold issue...need more foot
So many, much heavier cars were built, without power assisted brakes,(including disc in front). Is it that much effort ? Ever tried to stop a power assisted brake system, with a dead engine ? Good Luck, roverman.
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DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: Vacuum for a brake booster, manifold issue...
Hey Graham,
Your answer is in the ford picture. The little polished pipe at the base of the #1 intake runner is likely a brake vacuum take off. Each runner will have one that runs to the back of the manifold and joins up into a small plenum. The plenum is then tapped for the booster or whatever vacuum driven device that you have. This is also the way that you would supply a manifold pressure signal to a speed/density type fuel injection system. Cheers Fred |
Re: Vacuum for a brake booster, manifold issue...
Curtis: thanks that looks like just what I was looking for, much appreciated!
Art: I want to avoid re-engineering the P6B setup with a new non-boosted master cylinder if I can avoid it, its a 4 wheel disc brake setup and very good for its time... the electric motor making the suction looks like a simple solution Fred: my manifold setup is literally individual runners and I dont want to start drilling/tapping that if I can avoid it. I appreciate that the Ford manifold pictured has this option, and apologies for the confusion, but my casting does not Thanks to all who posted, very helpful! Graham Ware |
Re: Vacuum for a brake booster, manifold issue...
[www.britishv8.org]
Lorenze doesn't run a booster on this car and it stopped just fine last time I drove it. FWIW, his car weighs over 3,000 pounds. |