Best Cam

BLOCKER · 01-28-2002, 10:45 AM

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)

GCMustang · 01-28-2002, 12:43 PM

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.

Unit 5302 · 01-28-2002, 09:25 PM

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.

BLOCKER · 01-29-2002, 11:06 AM

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

Unit 5302 · 01-29-2002, 04:05 PM

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.

chris91LX · 01-29-2002, 06:46 PM

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.

BLOCKER · 01-31-2002, 10:33 AM

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

01-28-2002, 10:45 AM	#1
BLOCKER Registered Member Join Date: Mar 1999 Location: EDMONTON, Alberta, Canada Posts: 232	Best Cam 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) __________________ -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

01-28-2002, 12:43 PM	#2
GCMustang Registered Member Join Date: Jan 2002 Location: Gulfport, mS Posts: 18	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. __________________ -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

01-29-2002, 11:06 AM	#4
BLOCKER Registered Member Join Date: Mar 1999 Location: EDMONTON, Alberta, Canada Posts: 232	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

01-31-2002, 10:33 AM	#7
BLOCKER Registered Member Join Date: Mar 1999 Location: EDMONTON, Alberta, Canada Posts: 232	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

01-28-2002, 09:25 PM	#3
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	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.

01-29-2002, 04:05 PM	#5
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	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.

01-29-2002, 06:46 PM	#6
chris91LX Registered Member Join Date: Oct 1998 Location: Suburban Chicago, Hanover Park Posts: 695	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.