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Poll: Which is the most performance restrictive aspect of a stock 87-95 5.0?
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Which is the most performance restrictive aspect of a stock 87-95 5.0?

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Old 09-17-2002, 02:24 AM   #21 (permalink)
Scrapla
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I'm actually in the process of gettin an upper and lower intake on my pretty stock 1990 5.0gt so if your not in a rush i'll keep you posted as to what gives me the most power over stock.
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Old 09-17-2002, 07:00 AM   #22 (permalink)
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Hey 88workcar - my son and I have an 88GT that we're fixing up for a weekend warrior. Currently we've got some bolt on mods like long-tube headers, underdrive headers, high flow cat back etc.

Currently the car is still speed density. I've been told by many people to convert to MAF as we're limited what we can do to increase performance on the car. I've seen a little indicator of this when we put on a K&N cononical filter and the car wouldn't idle worth beans.

We would like to get our car into the low 13s or high 12s NA. We don't have the knowlege that you have with putting together the right combo for the highest increase in hp and torque. Can you give us some suggestions on what you did? If you had to do all over again - would you stay SD or convert to MAF on your 88LX?
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Old 09-17-2002, 07:32 AM   #23 (permalink)
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when i click on your link , why does it say that you have edelbrock performer cylinder heads ?
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Old 09-17-2002, 09:58 PM   #24 (permalink)
88workcar
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289, I have a complete conversion here. I like the SD. My computer likes to show off as much as I do. It takes any thing I throw at it. ported GT 40s with big valves, Edelbrocs, Built E7s, E,B, 1087 wolverine, ram air, timing, compression. The only thing it will not accept is 24lb injectors, but ran as fast as 12.17@ 113 with 19s and 39psi of fuel at 3950lbs. (65mm cobra edel B). I have tried to remove EVERYTHING that I can. To go fast, you have to have money, or ambition and be willing to make sacrifices. Give up comfort. I want one thing, FAST. Look at the down side for me I have owned this car for 12 1/2 years and still only run 12s. Now I have raised 2 children bought a home remodled it, Race a banshee that runs 7.1s at 90mph in the 1/8th , my son has a blaster that will whipp any Raptor or 400EX in town. I make 600.00 a week. How much money do you think the mustang gets? One thing I do, is stay friends with the fast boys and try to buy 2nd hand when they up grade.
As far as the SD goes, I think that its all hear/say. Yes when I put the heads on it got stupid. Drive down the road, pouring fuel, smoking, running like crap. Ten minutes later its good to go.
Mike, that is three years ago, I need to change it. Those Edlebrocs were bought for 200 and I lost a friend when he decided that he wanted them back. He swore that they were mine, yes $200.00.
If I could do it all over, I would weld the torque boxes the 1st day. Yes I would stay SD. I will post every thing about my car real soon. It may be a few days I have to port some banshee cyl and repair a raptor this week. The biggest thing I tell people is make up your mind, Fast or comfort / Fast or quiet/ Fast or ect...
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Old 09-19-2002, 08:04 AM   #25 (permalink)
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"289, I have a complete conversion here. I like the SD", what do you mean by complete conversion still SD with heads and the other stuff you did or conversion to MAF?
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Old 09-19-2002, 12:50 PM   #26 (permalink)
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Quote:
Originally posted by Mustang_289
"289, I have a complete conversion here. I like the SD", what do you mean by complete conversion still SD with heads and the other stuff you did or conversion to MAF?
He means he has the stuff laying around to convert to mass air, but he likes his speed density computer.

BTW: My car is also speed density with pretty heavy mods.
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Old 09-19-2002, 03:55 PM   #27 (permalink)
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I'm just trying to learn more about our stang - what do you guys like about SD vs MAF?

Dark_5.0 - what heavy mods have you done? I'll tell you we simply put on a K&N cononical filter as I said earlier and our stang ran like crap. Is there anything you guys did to the SD to get the heavy mods?
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Old 09-19-2002, 04:03 PM   #28 (permalink)
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The SD's always seem to run 'harder' than the MAF cars.

I've always wondered how guys like Dark 5.0 and 88workcar have been able to have such success with their modified SD Mustangs. An aftermarket intake install on my buddy's 88 GT and the car wouldn't idle for crap and was blowing bluish-gray smoke out the pipes. Once you start playing with the volume of air the engine is seeing, it seems to give the SD fits - except in cases like I've mentioned above.

You gotta respect guys that have successfully modified their SDs - 12.20's is no joke!

E
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Old 09-19-2002, 04:36 PM   #29 (permalink)
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I tip my hat to these dudes making SDs run in the 12s! It would be nice to get into the mid 13s with our stang. We haven't run it yet - but reading all the posts - I think we'll be in the 14s.
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Old 09-19-2002, 04:55 PM   #30 (permalink)
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I simply adjust the fuel pressure to get mine to idle right.

My mods..

extremely ported, polished and milled E7's with 1.7 RR
explorer intake with 3/8 inch phenolic spacer
65mm TB with 67mm egr spacer
aeromotive FPR
mac CAI fender kit
BBk 1 5/8 equal length headers
off road x-pipe
under drive pullies
flex fan
3.73's
etc....

My best time is a 13.4 @102mph @3000ft. I have the fuel pressure set @42psi @WOT.
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Old 09-20-2002, 10:30 PM   #31 (permalink)
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If you fellas want some encouragement. Listen to this. In 93 I got the "BUG" and bad. My son was 4 my daughter was just born. Money was,,,,well it wasn't. I got a set of stock heads and an intake from some one for nothing. I ported both. Cut the box open on the intake, ported, got it welded up. Ported blind (oo) when it was all done, I scraped money cutting grass to service the heads. 3 angle valve job, decked .030, new seals, .060 shims under the springs, ect... $200.00. I put it all on, the car ran WAAAYY faster. I lucked into some money got a 65mm TB. I already had 1 1/2 long tubes, 2 ch flows, 3.55s,k&n,fuel reg.,sub frames,4cyl springs all 4, muffler shop H pipe. It ran 13. 85 @ 100 before the heads and intake. 13.09 @ 105 after. Now, I gained 7 tenths, not knowing crap. All I knew was things are tight, my babies need to be fed, And we AIN'T GOT NO MONEY FOR THAT DAMM CAR. Fellas, port your stock heads. We all don't have $1000.00 alocated for alum. Have fun, do it anyway. People told me, Your waisting your time, now I'm waisting them. Who is it that said "come to the track, you might learn somthing?"
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Old 09-21-2002, 02:56 AM   #32 (permalink)
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The magical 12 second quarter mile isnt nearly related to your heads/cam, or intake. It really comes down to your suspension setup. If you can yank a decent 60 ft you can run a 12 without porting those heads.
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Old 09-21-2002, 03:20 AM   #33 (permalink)
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Fastang, Im not so shure you can break 12's with suspension mods alone. Puting the most power to the ground possible definately make a huge difference, but a stock motor just doesn't have what it takes to go 12's with bolt-on aftermarket suspension parts.
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Old 09-21-2002, 08:42 AM   #34 (permalink)
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Phase II, one of the motors I bought, 500.00 junkyard motor. I put in just like it came out the donar car. This was a true stock motor. My car now had 4.30s, a good set of tires, less weight, race pully, and what ever else I can not remember right now. Still had dirt on the stock intake from the fork lift that put it in my truck. 1st pass, 13.42 @ 102. The week after I put plugs, wires, cap, rotor, timing, at 16. This netted a 13.22 @ 104. A week later my cobra and 65mm was on 12.98 @ 105.. A week later my good E7s and a B cam 12.53 @ 107.99.
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Old 09-21-2002, 03:00 PM   #35 (permalink)
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What suspension mods to you guys recommend to get into the 12s? My son and I are planning on doing these mods over the winter to the rear for our 88GT 5-speed: 3.73s, Eaton posi, 31-spline Superior axles, new upper/lower control arms(open to recommendations). We already have Kenny Brown sub-frames welded on.
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Old 02-04-2003, 10:44 PM   #36 (permalink)
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Glad to see this thread came back up. 289 I can not tell you what is best, I can not make up your mind for you, But I WILL tell you what works for me.
Gut the car
alum racing seats
weld the torque boxes
put 3 1/2" studs in those new axles
drive shaft loop
alum drive shaft
4.30s
weld rims
good control arms, adjustable uppers (I don't have any) no SSMs
air bags
4 cylinder springs (all 4 )
90/10 lakewood struts
26 x10 Hoosier Slicks
Centerforce duel friction clutch
Launch at 5500rpm
after picking up timeslip go clean underware
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Old 02-05-2003, 04:26 PM   #37 (permalink)
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Quote:
Originally posted by 88workcar
If you fellas want some encouragement. Listen to this. In 93 I got the "BUG" and bad. My son was 4 my daughter was just born. Money was,,,,well it wasn't. I got a set of stock heads and an intake from some one for nothing. I ported both. Cut the box open on the intake, ported, got it welded up. Ported blind (oo) when it was all done, I scraped money cutting grass to service the heads. 3 angle valve job, decked .030, new seals, .060 shims under the springs, ect... $200.00. I put it all on, the car ran WAAAYY faster. I lucked into some money got a 65mm TB. I already had 1 1/2 long tubes, 2 ch flows, 3.55s,k&n,fuel reg.,sub frames,4cyl springs all 4, muffler shop H pipe. It ran 13. 85 @ 100 before the heads and intake. 13.09 @ 105 after. Now, I gained 7 tenths, not knowing crap. All I knew was things are tight, my babies need to be fed, And we AIN'T GOT NO MONEY FOR THAT DAMM CAR. Fellas, port your stock heads. We all don't have $1000.00 alocated for alum. Have fun, do it anyway. People told me, Your waisting your time, now I'm waisting them. Who is it that said "come to the track, you might learn somthing?"
I too shaved off 7 tenths, in a different way, i wish i could have my car down long enough to have the heads hogged out, but rely on it everyday for now.
Also i see you are pretty supportive of welding torque boxes, i am going to do this soon, since i can see a crack starting to appear in the pass side box, i give all the revs i can off the line (with crap gears) to get a good 60' i have a friend that is a welder, i am calling him this weekend, do you do this for strengh purposes only? or will the rear actually transfer power more accurately?

thnx workcar, and keep the wheels dangling
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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
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Old 02-05-2003, 05:49 PM   #38 (permalink)
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Someone please help me out. What exactly are the torque boxes?
Thanks.
Caymon

One more thing. Will I still see gains if I port the intake and exhaust side of the heads but do not enlarge the valves? How hard is it to port the lower intake and the upper intake?
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Old 02-05-2003, 06:03 PM   #39 (permalink)
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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.
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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
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Old 02-05-2003, 06:14 PM   #40 (permalink)
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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.
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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
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