Which is the real limiting factor on a stock 5.0? - Page 3

Coupe50h · 02-05-2003, 06:03 PM

bigred, yes, you can just enlarge the exhaust side of the e7's and see a gain, most likely, some new springs, and just a little work on the exhaust side would be a kick in power imo.
torque Boxes= Where your lower control arm's bolt onto the frame, there is some thin metal there holding it together, look underside/inside of your rear wheel, i thought id inspect mine one day since im launching on stickies, sure enough, one is tearing, But it is repairable as of now, any more could be costly repair work.
Oh, I seen ported e7's (stock valve) and b-cam go 106 mph in a 3100 lb car, was a carbed car though.

Coupe50h · 02-05-2003, 06:14 PM

Another thing, get some 1.7 rockers for your heads, no matter what kind of porting you do on those stock heads, the 1.7 ratio will take advantage of the larger volumes of air, using stock cam.
Also before many mods, most people strongly believe you need subframe connectors, you cant go wrong with those two mods above, combined with slicks should give some good gains.

Yan88gt · 02-07-2003, 07:16 PM

I'm actualy building a junkyard turbo kit and my restriction will be the stock block and internals. I will not use the stock heads and intake but i could still make enough power to split the block with them.

srv1 · 02-08-2003, 08:19 PM

i cant agree more with workcar and coupe5oh. i noticed a difference when i ported out the exhaust side and left the intake side alone. i was told that i am "wasting my time" and "wasting my money". I believe for 302 cubic inches, the ported E7, GT40 and GT40P's are your best bet for a budget. I just bought the "P" heads and talked to the guy who Chambers got them from. You would be amazed the little trick things they do to go fast. Anyone have experience with the "P" heads? i want to shave them, but i hear it gets really close.

James...

bigred90gt · 02-08-2003, 09:21 PM

Every one is talking about porting the exhaust side. What about the intake side? If I port the lower intake and the intake runners on the heads along with the exhaust, will this produce more of a benifit? Or should I just port the exhaust side and be happy with the results? Thanks.
Caymon

FireFinder20 · 02-08-2003, 10:01 PM

My father bought his GT new in 91...in 95, he just installed the GT40 intake, 65mm TB, Pro-M Bullet 75mm MAF, Power Pipe w/K&N, 3.73s, Pulleys and 2 chamber Flows. He went 13.9s @ 101 or something like that. The track bug bit him and he started going to the track every weekend, in search of better times.

He got some GT40 Y heads, a B Cam, 24lb inj, electric fan, manual rack, A/C delete, LTs, 2.5 Catted H and Hoosiers and went 13.0s. He lightened the car, got a drag spring kit, torque boxes, 4.10s, M&Hs, had the intake cut open & custom ported and the heads milled and ported. He weighed in at 3010 lbs w/ driver and went 11.87@113.x w/1.5x 60s. He backed it up with an 11.90@112.x. Not bad for a stock bottom end 302.

Just sharing...I think I'm gona be getting his heads and intake this summer, he wants to build a 347.

NotchJohnson · 02-08-2003, 11:25 PM

Caymon, the reason everyone ports the exhaust side of the heads is because of the thermactor "bump" on the roof of the exhaust port. I never realized how big the damn bump was until I pulled my heads off. From what Ive heard, it really restricts the exhaust flow.

Coupe50h · 02-09-2003, 01:11 AM

Yep, and i need to practice what i preach and grind the hump outta mine.....

Skyman · 02-09-2003, 01:31 PM

Well, I used to think that the stock heads were the problem.

But (before blowing the motor) I had a 85 GT with a 88motor, stock cam, stock heads, with intake carb, ignition and fulll exhaust and that little sob ran 105mph.

Its focusing on a good tune, and some motors just have it, and others don't.

Skyler

95/GT/5.0 · 02-15-2003, 01:24 AM

88workcar · 02-19-2003, 07:44 AM

95/gt/50 wrote

Quote:

$$$

Hey with some of that I could really run good.

POLL: 1 Should we start a workcar go fast fund?
2 Should we buy Skyler a new short block?
3 Should we buy dirtbiker some alum heads?

Skyman · 02-19-2003, 03:02 PM

Im all for #2! Lets start the fund drive! Tracking one down in the junkyard right now.

Skyler

88workcar · 08-22-2010, 06:35 AM

Been a while for me, boy the good old days LOL

02-05-2003, 06:03 PM	#1
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	bigred, yes, you can just enlarge the exhaust side of the e7's and see a gain, most likely, some new springs, and just a little work on the exhaust side would be a kick in power imo. torque Boxes= Where your lower control arm's bolt onto the frame, there is some thin metal there holding it together, look underside/inside of your rear wheel, i thought id inspect mine one day since im launching on stickies, sure enough, one is tearing, But it is repairable as of now, any more could be costly repair work. Oh, I seen ported e7's (stock valve) and b-cam go 106 mph in a 3100 lb car, was a carbed car though. __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

02-07-2003, 07:16 PM	#3
Yan88gt Registered Member Join Date: Jun 2001 Location: Quebec canada Posts: 92	I'm actualy building a junkyard turbo kit and my restriction will be the stock block and internals. I will not use the stock heads and intake but i could still make enough power to split the block with them. __________________ Ported stock heads and intake, 65mm throttle body, 1.7 roller rockers, pulley, superchip,afpr, electric fan, motorsport headers, magnaflow cat-back, hurst shifter, 3.55 gear, speed density computer 12.81@ 104.7 on E.T street (1.77)

02-08-2003, 08:19 PM	#4
srv1 Get down..... Join Date: Apr 2001 Location: Room 103 Posts: 2,095	i cant agree more with workcar and coupe5oh. i noticed a difference when i ported out the exhaust side and left the intake side alone. i was told that i am "wasting my time" and "wasting my money". I believe for 302 cubic inches, the ported E7, GT40 and GT40P's are your best bet for a budget. I just bought the "P" heads and talked to the guy who Chambers got them from. You would be amazed the little trick things they do to go fast. Anyone have experience with the "P" heads? i want to shave them, but i hear it gets really close. James... __________________ Cobra brakes are on! Finally..... ------------------------------------------------

02-08-2003, 09:21 PM	#5
bigred90gt 2 Stangs in the Stable Join Date: Apr 2002 Location: Baytown, TX Posts: 1,209	Every one is talking about porting the exhaust side. What about the intake side? If I port the lower intake and the intake runners on the heads along with the exhaust, will this produce more of a benifit? Or should I just port the exhaust side and be happy with the results? Thanks. Caymon __________________ '90 GT Under construction Best E.T. = Fast @ High Speeds - OK So I Lie. So What!!! 04 F-150 STX 4.2L 5 spd Rice Haters Club Member #128

02-08-2003, 10:01 PM	#6
FireFinder20 I See Stupid People Join Date: Mar 2002 Location: New Jersey Posts: 47	Well, not my car, but... My father bought his GT new in 91...in 95, he just installed the GT40 intake, 65mm TB, Pro-M Bullet 75mm MAF, Power Pipe w/K&N, 3.73s, Pulleys and 2 chamber Flows. He went 13.9s @ 101 or something like that. The track bug bit him and he started going to the track every weekend, in search of better times. He got some GT40 Y heads, a B Cam, 24lb inj, electric fan, manual rack, A/C delete, LTs, 2.5 Catted H and Hoosiers and went 13.0s. He lightened the car, got a drag spring kit, torque boxes, 4.10s, M&Hs, had the intake cut open & custom ported and the heads milled and ported. He weighed in at 3010 lbs w/ driver and went 11.87@113.x w/1.5x 60s. He backed it up with an 11.90@112.x. Not bad for a stock bottom end 302. Just sharing...I think I'm gona be getting his heads and intake this summer, he wants to build a 347. __________________ 92 Lincoln Mark VII LSC Mods: 65mm Edelbrock TB and a conical K&N Visit Central Jersey Mustangs & Fords

02-05-2003, 06:14 PM	#2
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	Another thing, get some 1.7 rockers for your heads, no matter what kind of porting you do on those stock heads, the 1.7 ratio will take advantage of the larger volumes of air, using stock cam. Also before many mods, most people strongly believe you need subframe connectors, you cant go wrong with those two mods above, combined with slicks should give some good gains. __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

02-08-2003, 11:25 PM	#7
NotchJohnson Registered Member Join Date: Oct 2001 Location: Florida Keys Posts: 593	Caymon, the reason everyone ports the exhaust side of the heads is because of the thermactor "bump" on the roof of the exhaust port. I never realized how big the damn bump was until I pulled my heads off. From what Ive heard, it really restricts the exhaust flow. __________________ 89 notch-finally not stock!! ported gt40's, ported cobra intake, 65mm tb, 75mm maf, mac cai, lt's,prochamber, fms 1.6 rr, 125 shot.

02-09-2003, 01:11 AM	#8
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	Yep, and i need to practice what i preach and grind the hump outta mine..... __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

02-09-2003, 01:31 PM	#9
Skyman I need 110mph Trap Speed! Join Date: Feb 1999 Location: So, CA Posts: 4,315	Well, I used to think that the stock heads were the problem. But (before blowing the motor) I had a 85 GT with a 88motor, stock cam, stock heads, with intake carb, ignition and fulll exhaust and that little sob ran 105mph. Its focusing on a good tune, and some motors just have it, and others don't. Skyler __________________ 2001 BMW M3 6spd 12.79@108 RIP ---- 1993 Notch w/ 98 4V 4.6 Fasttt... -1989 Saleen Mustang #406- 12.32@109 -1999 Black Cobra Coupe- JBA Shorties, Bassani Cat-X, Magnaflow 3", Pulleys, 85mm Pro-M, Ported Intake, Soild Rear w/ 4.30s, Tubular Front End, X2C arms, 13lb batt, few others.

02-15-2003, 01:24 AM	#10
95/GT/5.0 Registered Member Join Date: Dec 2002 Location: Biloxi.Mississippi Posts: 49	$$$ __________________ 1995/GT/5.0

02-19-2003, 03:02 PM	#12
Skyman I need 110mph Trap Speed! Join Date: Feb 1999 Location: So, CA Posts: 4,315	Im all for #2! Lets start the fund drive! Tracking one down in the junkyard right now. Skyler __________________ 2001 BMW M3 6spd 12.79@108 RIP ---- 1993 Notch w/ 98 4V 4.6 Fasttt... -1989 Saleen Mustang #406- 12.32@109 -1999 Black Cobra Coupe- JBA Shorties, Bassani Cat-X, Magnaflow 3", Pulleys, 85mm Pro-M, Ported Intake, Soild Rear w/ 4.30s, Tubular Front End, X2C arms, 13lb batt, few others.

08-22-2010, 06:35 AM	#13
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Re: Which is the real limiting factor on a stock 5.0? Been a while for me, boy the good old days LOL __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

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