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#1 |
Registered Member
Join Date: Mar 1999
Location: EDMONTON, Alberta, Canada
Posts: 232
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![]() What Ford Motorsport/Racing cam should I use with this set up?
Stock 88 5.0l Speed Density Engine Mac Underdrive pullies Hypertech Super Chip GT 40 heads* Cobra Upper and Lower* and what throttle body? Keep in mind I do not want to convert over to MAS air Thanks *don't have yet but comming, (Hopefully)
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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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#2 |
Registered Member
Join Date: Jan 2002
Location: Gulfport, mS
Posts: 18
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![]() Assuming, of course, that you'll do a mass air conversion along with the cam/headswap, I'd say go with the venerable E303. It was designed to work with those GT40 heads and Cobra Intake by engineers far more qualified to make that decision than I, and I would stick with what is reliable and proven.
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-SamP, BSME- ~1998 Mustang GT~ - Saleen Body Kit, Cobra R wheels (17x10.5 w/ 315/35 in rear and 17x8 w/ 245/45 out front), 3.27 gears, FMS C Springs. . . Waiting for income tax check to do 99PI headswap! RateMyStang |
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#3 |
Registered Member
Join Date: May 1999
Posts: 5,246
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![]() Both the B cam and E cam have been proven to work with the speed density system. You'll need to get an adjustable FPR to tune the fuel pressure, or 24lb/hr injectors, I would recommend a 65mm T/B with that combo.
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#4 |
Registered Member
Join Date: Mar 1999
Location: EDMONTON, Alberta, Canada
Posts: 232
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![]() I have heard that the B cam will not work with the SD system,
what is the FPR like to adjust, do I have to spend a lot of time tweeking,or will I be able to set once and be able to leave it with out having to adjust it every few days/weeks? What does one cost? what is involved in installing one? The mods I have listed how will they affect my engine in terms of life, will it shorten it because of the new parts on old factor, or will it make a difference? Thanks again
__________________
-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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#5 |
Registered Member
Join Date: May 1999
Posts: 5,246
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![]() An adjustable fuel pressure regulator will set you back 100-150 if I'm correct. They are simple to adjust, you'll need a fuel pressure gauge, I think most adjust with a screw.
88workcar was running the B cam on the speed density system for a while. He had his car running low/mid 12's with that cam. The cars lifespan shouldn't be heavily affected by running that combination. A stock cam with 1.7:1 roller rockers is also an option if you want to make sure your speed density car remains easy to keep in tune and running well. |
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#6 |
Registered Member
Join Date: Oct 1998
Location: Suburban Chicago, Hanover Park
Posts: 695
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![]() You can get a Kirban adjustable FPR for $75 from GTR Performance and it's better than many of the more expensive ones. I had the BBK and Aeromotive and sent 'em both back.
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#7 |
Registered Member
Join Date: Mar 1999
Location: EDMONTON, Alberta, Canada
Posts: 232
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![]() would a 70 mm tb be too much?
or should I just stick with a 65 mm TB... To recap, SD 5.0 HO Mac Underdrive pullies Hypertech Super Chip cobra Upper and Lower GT 40 heads (93 cobra spec) B303 cam 70 mm or 65 mm TB FPR Mac 2.5" exaust what should I be running for HP and tourque? any Ideas how about driveabilty? Thanks
__________________
-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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