 3sgte swapped st204..brake booster not working |
 Mar 12, 2013 - 10:37 PM
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 Enthusiast  Joined May 13, '06 From Kaimuki, HI Currently Offline Reputation: 10 (100%)  |
I know the brake booster works off of vacuum, and my engine is now turbo'd, so now their is boost when it is under load. I put a check valve between the engine and the booster. The car has been sitting for 5 years (and yes I still have full brake fluid), so I'm hoping it's just calipers sticking. Now I'm thinking about running the brake booster pre-turbo since it's not working that well. I've been wanting to do a 7th gen rotor/caliper swap. What have you guys experienced with the brakes when the st204 is turbo'd? It should work with the check valve.
-------------------- -Jay
95 GT conv. project car: Manual, Gen III 3sgte, JN pisons, Eagle rods, overbore, crank knife-edged, crank scraper, ARP head/main/flywheel, Autronic EMS, Haltech Dual Wideband O2 controller, Audi 1.8T individual coils, FMIC and SSQV BOV, 3" downpipe, 3" ultra-high-flow cat, 2.5" Borla muffler, +other 01 S2000: FMIC, Haltech EMS, Haltech wideband, 570cc inj, forged pistons/rods, sleeved block, 5 angle valve job, ported and polished 02 R6, all stock, except for braided stainless brake lines, frame sliders, and adjustable brake/clutch leve |
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Mar 13, 2013 - 10:56 AM
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 Enthusiast Joined Aug 31, '02 From Philadelphia, PA Currently Offline Reputation: 8 (100%) |
Um, you just hook it up to the factory location on the side of the intake manifold. Don't install any check valves or anything like that!
My car has been swapped for about 8+ years now. Trust me, there are no brake booster issues to figure out or rig up. -------------------- 15PSI - 30MPG - Megasquirt Tuned
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Mar 13, 2013 - 3:30 PM
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Enthusiast Joined May 13, '06 From Kaimuki, HI Currently Offline Reputation: 10 (100%) |
QUOTE (Smaay @ Mar 13, 2013 - 4:08 AM)  the brake booster has a built in check valve. i had no brake issues when i turboed my GT. if you are having brake issues, while anything is possible and it could be the booster, i would look elsewhere. how do you plan on running the booster pre turbo? where are you going to get your vacuum source? I didn't know it had a built in check-valve. I know some brake boosters have single diaphragm, and others have dual diaphragm, so they work on turbo'd cars. And I've heard of the diaphragm in the brake boosters blowing when a non-turbo car is turbo'd. For the pre-turbo setup I was going to run it to in front of the turbo, that way it wouldn't have vacuum at low boost (car isn't moving), but it would have vacuum under higher boost (when driving) QUOTE (lagos @ Mar 13, 2013 - 5:56 AM) Um, you just hook it up to the factory location on the side of the intake manifold. Don't install any check valves or anything like that! My car has been swapped for about 8+ years now. Trust me, there are no brake booster issues to figure out or rig up. Cool, I'll switch it then. This is good to know. -------------------- -Jay
95 GT conv. project car: Manual, Gen III 3sgte, JN pisons, Eagle rods, overbore, crank knife-edged, crank scraper, ARP head/main/flywheel, Autronic EMS, Haltech Dual Wideband O2 controller, Audi 1.8T individual coils, FMIC and SSQV BOV, 3" downpipe, 3" ultra-high-flow cat, 2.5" Borla muffler, +other 01 S2000: FMIC, Haltech EMS, Haltech wideband, 570cc inj, forged pistons/rods, sleeved block, 5 angle valve job, ported and polished 02 R6, all stock, except for braided stainless brake lines, frame sliders, and adjustable brake/clutch leve |
Posts in this topic
match220 3sgte swapped st204..brake booster not working Mar 12, 2013 - 10:37 PM
Smaay the brake booster has a built in check valve. i ha... Mar 13, 2013 - 9:08 AM
match220 I took out the check valve a few days ago and that... Mar 24, 2013 - 3:21 AM
presure2 if you dont have enough vac to get good brakes, th... Mar 28, 2013 - 5:11 PM match220 QUOTE (presure2 @ Mar 28, 2013 - 12... Mar 28, 2013 - 9:25 PM |
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