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Proposed Brake Set-up
Posted: Wed Sep 05, 2007 8:42 am
by Mephious
Gday guys,
This is my proposed brake set-up for the EK Sedan. Not sure if anyone has messed around with pumps and vacuum tanks before. Any advice would be greatly appreciated if things look wrong or a better solution is possible.
HQ Master Cylinder
HQ Portioning Valve.
Pump/Remote booster in boot
Vacuum Res/Booster under front guards.
Posted: Wed Sep 05, 2007 11:19 am
by oldnek
Mephious, sounds like a lot of expense for an average brake set up.
Much more simpler to run a Mazda Brake booster and dual circuit master cylinder mounted on the firewall. Or Gemini with XA/XB master.
Regards John
Posted: Wed Sep 05, 2007 3:38 pm
by Mephious
I hear ya John !!!
My concern thou is I wont have the room for a firewall mounted booster if I need to adjust the roller rockers. Theres roughly two inches off the firewall before the head covers.
Never done a set-up like this before , so im not sure if its better to have the vacuum tank at the end of the run , or at the start of the run. Logically I am presuming the end of the run , so the pump doesnt believe the vacuum level is correct if the tank fills up first ?
Also presuming the tank at the end will have reserves for the front booster after having to brake if the pump needs to "catch up" with pressure.
Not 100% sure just guestimating.
Posted: Wed Sep 05, 2007 5:17 pm
by Devilrod
Unless the engineer has specifically asked for it do you really need the booster? If I get time and can find them I'll post some pics of my mates EK, 600+hp unboosted brakes fully engineer approved. It may not be tonight but in the next few days.
Posted: Thu Sep 06, 2007 12:31 am
by Mephious
Sounds good Devilrod, would be greatful for it mate.
Throwing the boosters more for my sake mate , worried the thing wont pull up and this looks to be the only option for the remotes. I know the vacuum will be a prob as the block wont have much vacuum due to the cam and the blower.
Posted: Thu Sep 06, 2007 12:32 pm
by Devilrod
You'd be surpised at how well the system works in his EK. It and a HK running a similar setup left the engineer speechless after the brake test and also opened his eyes a bit. I haven't had the pleasure of driving this but his missus handles the car with ease and she is only a little lass......
One thing he has done I know for sure is lengthen the brake pedal arm. Requires less effort to push, basic phsyics...