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  • Vacuum for braking

    Ok, so I have begun looking into solutions for my braking issue. With this cam that I have, I dont think I am building enough vacuum for proper braking...I.e, if I pump the brakes 1-2 times before coming to a stop (like a gradual slow down on a main street, and apply a little more pressure each pump) by the time I hit the brake the 3rd time it's like I have manual brakes, very hard to get the car to stop. It's the worst in stop and go traffic, but normally the first 2 pumps it stops good.

    So I have been toying with adding an additional vacuum reserve like this one http://cgi.ebay.com/ebaymotors/Chrom...Q5fAccessories

    but does anyone have any experience with these? I mean how well would something like that work for me?...or should I look into ripping something off of a diesel car (because they dont have vacuum) and adapt their pump to our cars and use that for my braking?

    2002 SOM Z28 Camaro - 12.9 @ 104 mph
    1996 3800 Camaro - 13.43 @ 100.77 mph


    Project Cars | How To Guides | Scratch Repair | Synthetic Oil

  • #2
    Re: Vacuum for braking

    Have you properly bled the brakes recently and not let the master go dry?

    Also, you could look into hydroboost instead.

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    • #3
      Re: Vacuum for braking

      How much vacuum do you have at idle?

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      • #4
        Re: Vacuum for braking

        vacuum canisters work great.. im going to get one once i get power brakes

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        • #5
          Re: Vacuum for braking

          Whats your vac. running?
          08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
          96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

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          • #6
            Re: Vacuum for braking

            Brakes are bled properly...this has been an issue since the new cam/motor went in...I dont know what my vacuum is at idle, I dont have a vac gauge...and I have replaced my check valve to make sure that wasnt the issue...I think its just because the cam is much bigger...

            2002 SOM Z28 Camaro - 12.9 @ 104 mph
            1996 3800 Camaro - 13.43 @ 100.77 mph


            Project Cars | How To Guides | Scratch Repair | Synthetic Oil

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            • #7
              Re: Vacuum for braking

              You need a vac. gauge to see what it is running.
              Last edited by ssms5411; 03-31-2011, 10:12 PM.
              08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
              96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

              Comment


              • #8
                Re: Vacuum for braking

                I say buy the vacuum tank Mike. If it doesn't work for you ,(I think it will) I'll buy it from you. Its a common problem when using a very lumpy cam.

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                • #9
                  Re: Vacuum for braking

                  lol i know you were mentioning that to me. How do you hook one of these things up anyways though?

                  2002 SOM Z28 Camaro - 12.9 @ 104 mph
                  1996 3800 Camaro - 13.43 @ 100.77 mph


                  Project Cars | How To Guides | Scratch Repair | Synthetic Oil

                  Comment


                  • #10
                    Re: Vacuum for braking

                    If the can has 2 nipples (hee hee hee), then cut a vacuum hose in half and connect both ends to it.. If there's only one nipple, use a TEE fitting to splice it in or find a spare vacuum port somewhere and plug into that.

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