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#1 |
Registered Member
Join Date: Sep 2001
Location: Pueblo, CO, USA
Posts: 43
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![]() I plan on doing the 5 lug and rear disc upgrade to my 88GT. I have beed doing some searches and have not been able to determine which master cylinder I am supposed to get and what I need to do to it or what else I need to get in conjunction with the master cyliner. Any help is greatly appreciated.
Thanks KG88GT |
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#2 |
Registered Member
Join Date: Jul 2000
Location: Norman, Oklahoma, USA
Posts: 597
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![]() i would think your master cylinder would work, you need an adjustable proportioning valve definately. You can get these at Summit or Jegs, and they are relatively cheap. They allow you to adjust the amount of pressure that is applied to the front and rear brakes to balance them.
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Michael Black QuantumMotorsports Norman, OK 1984 LX Hatch 306 w/ TRW forged flat toppers, Comp Cams Magnum 292H, GT40P heads w/ 3 angle valve job, .550 lift springs, Angus Racing Roller Rockers, Weiand Stealth Intake, Holley 4150 650cfm carb, MAC 1 5/8 Long Tubes, Single Chamber Flowmasters, 91' T5 w/ Pro 5.0 shifter, Turbo Coupe 8.8 Rear w/ 3.55 gears, QA1 Motorsports tubular K member, no interior except steering wheel and seat. Coming soon: 6 or 8 point cage, Fuel Cell, Weld Draglites |
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#3 |
Registered Member
Join Date: Jul 2000
Location: Norman, Oklahoma, USA
Posts: 597
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![]() I forgot, I was also told once that if you're having a prob with pedal feel because you went to discs you can use like an 88 lincoln mark whatever master cylinder because it has a larger volume and surface area of the piston or something. Good luck.
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Michael Black QuantumMotorsports Norman, OK 1984 LX Hatch 306 w/ TRW forged flat toppers, Comp Cams Magnum 292H, GT40P heads w/ 3 angle valve job, .550 lift springs, Angus Racing Roller Rockers, Weiand Stealth Intake, Holley 4150 650cfm carb, MAC 1 5/8 Long Tubes, Single Chamber Flowmasters, 91' T5 w/ Pro 5.0 shifter, Turbo Coupe 8.8 Rear w/ 3.55 gears, QA1 Motorsports tubular K member, no interior except steering wheel and seat. Coming soon: 6 or 8 point cage, Fuel Cell, Weld Draglites |
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#4 |
Moderator
Join Date: Mar 2001
Location: Myrtle Beach SC
Posts: 1,643
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![]() Do the swap without changing the master cyl and without a prop valve first. My best bud bought a summit prop valve and installed it when he did his swap.. its layin in the floor of his shop now cause it was useless.
Bradley
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1990 GT, 347, TFS TW Heads, TFS Cam, TFS Track heat, Twin turbos, FMIC, T5. Built Ford Tough Moderator |
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#5 |
Registered Member
Join Date: Jul 2000
Location: Norman, Oklahoma, USA
Posts: 597
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![]() man, i'll pay him for shipping if he'll ship it to me. I mean, since it's just lying on his shop floor. :-)
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Michael Black QuantumMotorsports Norman, OK 1984 LX Hatch 306 w/ TRW forged flat toppers, Comp Cams Magnum 292H, GT40P heads w/ 3 angle valve job, .550 lift springs, Angus Racing Roller Rockers, Weiand Stealth Intake, Holley 4150 650cfm carb, MAC 1 5/8 Long Tubes, Single Chamber Flowmasters, 91' T5 w/ Pro 5.0 shifter, Turbo Coupe 8.8 Rear w/ 3.55 gears, QA1 Motorsports tubular K member, no interior except steering wheel and seat. Coming soon: 6 or 8 point cage, Fuel Cell, Weld Draglites |
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#6 |
Registered Member
Join Date: Mar 1999
Location: EDMONTON, Alberta, Canada
Posts: 232
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![]() you do not need a new master cylinder or prop valve, I did the swap, (I used a T-bird rear disc set up) the brakes work great....
good luck...
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-1988 MUSTANG COBRA GT (Canadian...eh!) ![]() -1987 Mustang LX coupe (2.3L) -1978 Harley Davidson FLH -2008 Harley Davidson Nightster 1200 -2008 Harley Davidson Night Rod Special ![]() -1997 Jaguar XK8 Convertable ![]() |
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#7 |
Registered Member
Join Date: Mar 2003
Posts: 32
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![]() Just finished the rear disc conversion on my 86GT using sn95 front and rear. I did use a prop valve from Maximum Motorsports along with the plug kit for the stock M/cylinder. Check out www.matt90gt.com site for all the info related to this swap.
What are you going to use for this swap? |
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#8 |
Registered Member
Join Date: May 2002
Location: The Midwest
Posts: 79
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![]() I added the 2-port aluminum SVO MC to mine, but it also has the 73mm front calipers. Works great, but I have also heard of others staying with the stock MC/PV (in similar fashion to the '93 Cobra) and having that work fine as well.
I wrote a real nice tech article for another site that has lots of pictures and a parts list - if anyone is interested, I'd be happy to pass it along! Joe jrgoffin@netzero.net |
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#9 |
Registered Member
Join Date: Sep 2001
Location: Pueblo, CO, USA
Posts: 43
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![]() Just a quick post to say thanks for the help. Now it is time to hit the yards to get some parts.
Thanks again KG88GT |
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