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Old 04-28-2010, 07:55 AM
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stumpjumper3 stumpjumper3 is offline
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Join Date: May 24, 2007
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Riddle me this (brake question)

I know that in order for powerboost brakes to work, my engine must supply adequate vacuum for maximum braking. Well after my cam install (K8600) my brakes suck when coming to a stop, but work fine if i've got some RPM's. Could this be that my camshaft has robbed me of some of my vacuum thats required for my brakes. How could i remedy this?

Thanks,
Austin
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Old 04-28-2010, 10:17 AM
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The Colonel The Colonel is offline
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Do a search for Hydro-assist.

Before that I would check you entire vacuum system for leaks and be sure the check valve to the booster is holding vacuum.
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Old 04-28-2010, 11:07 AM
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Chris P. Chris P. is offline
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How much vacuum are you getting at idle? I have the 8600 and don't have any brake problems.
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Old 04-28-2010, 11:12 AM
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Is the idle speed high enough? More rpms mean lower vacuum, but too low rpms can do the same thing.
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