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'91 Mustang 5.0 vrs '94 Z28

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Old Jul 25, 2004 | 04:35 PM
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'91 Mustang 5.0 vrs '94 Z28

Stang has the following: 150k STRONG motor for its age, Shorty headers of some sort, Aftermarket CAI, 5 speed, SFC's, UCA's, Pullies, 16" tire option, and a V-Force exhaust (dynomax).

I have what's in my sig, and it's up to date. Alright, I know that this year of stang was rated at 225 HP, so with the pullies + CAI + Headers He is looking at around 250-260? His car also weighs 2800 Ibs and is about 3020 with him in it... Mine weighs 3550 with me in the car.

So, who's going to win? I can't help but feel like I have the advantage of horsepower, but with his suspension work and light weight, and it being a 5 speed, I am a little worried. Should I be? He's a decent driver, and I'm in an auto so I'm just going to mash it and hold on. He's the kind of person that believes that Jesus himself came down and Hand built every single mustang. He really thinks they are unbeatable by any Camaro. I'd love nothing more than to completely annihilate him like 3 or 4 times in a row.

I'm giving him time to re-learn how to drive a manual, since he hasn't in a long time. I just want there to be NO excuses at all when who ever wins. He told me my car was crap, I told him it would woop the **** outa his car anyday. So the challenge is there. Probably be a week or so before we race.

So, in all honesty, who do you think will win?
Old Jul 25, 2004 | 04:41 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Hard to say, he seems pretty damn light. I say it comes down to who hooks better, some 5.0's are a total joke, some have been well maintained and run well, it iss hard to say.
Old Jul 25, 2004 | 04:45 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

No, you'll win. You start at 275 horses. He doesn't.
Old Jul 25, 2004 | 04:58 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

The main things I am worried about are his weight advantage, suspension, and the fact that its a manual. I know I have him beat in the power department, I just hope the other things don't allow him to catch up.
Old Jul 25, 2004 | 04:59 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Originally Posted by warwickbass
No, you'll win. You start at 275 horses. He doesn't.
No, an auto LT1 starts at about 245-250 to the wheels, the Mustang is probrally at 200-210 to the wheels stock, the Mustang has the advantage of the 5-speed, and weights about 500 pounds less than the LT1 maybe even more, I am not saying the LT1 is gonna lose, and if I had to bet I would go with the LT1, but it is not gonna be a blow out by any means. Sometimes guys fail to factor in weight, taking out 100 pounds from a car is like adding 10HP, give or take.
Old Jul 25, 2004 | 05:19 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Where do you get 210 to the wheels from? They are rated at 225 at the fly wheel, that means about 191 at the wheels with a 15% power loss, which is about right considering their stock ET's are around 15 seconds.
Old Jul 25, 2004 | 05:20 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Originally Posted by 1998GT4.6
No, an auto LT1 starts at about 245-250 to the wheels, the Mustang is probrally at 200-210 to the wheels stock, the Mustang has the advantage of the 5-speed, and weights about 500 pounds less than the LT1 maybe even more, I am not saying the LT1 is gonna lose, and if I had to bet I would go with the LT1, but it is not gonna be a blow out by any means. Sometimes guys fail to factor in weight, taking out 100 pounds from a car is like adding 10HP, give or take.
Obviously, I meant at the crank. The 5-speed advantage is diminshed when the auto has a higher gearing and such. Of course, if he had a higher stall then I doubt there would be a "manual advantage" at all.
Old Jul 25, 2004 | 05:44 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

The 5.0's put down over 200 at the wheels, not much over but they did, and as some of you guys may know, many of them ran 13's from the factory back in the early 90's, so all this 15 second BS is way off base, yes, there are ALOT of run down 5.0 cars out there that turn HORRIBLE times, don't get me wrong. But I am going off what you said, that that is that this guys motor runs strong. If that is true, with his mods, he would lay down between 220-230rwhp. With your mods I would guess you are between 255-265, but with that MASSIVE weight advantage he has on you, that power is not as big as a factor. I say it comes down to if he can drive or not, but I think your car will pull on him in the higher speeds reguardless, when weight is not such a factor, good luck, let us know the results.
Old Jul 25, 2004 | 06:04 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Someone who has a 5.0 on this board just had a competition, to "guess" his ET after he did a few mods to it, I can't remember who but it was an AOD 5.0 and he got a 15.013 or something. Another one on this board with a relatively strong 5.0 did something like 14.8 with mods. I can't remember their names, I suck with names, but I've never heard of a stock 5.0 running anywhere near the 13's. The lowest I've seen them run (stock) is somewhere around 14.5.

Also, I think you might be a little low on the estimate of my RWHP, if I'm at 245-250 stock like you said, well, MadZ28 garantee's 13 RWHP alone on a stock motor, and i got tuned for gears and headers. That alone puts me at 258-263. Then Add headers, Gears, CAI, Exhaust... Those will all add probably around atleast 5-10 each, and I'm lowballing it.

I still think I have a pretty massive HP advantage.
Old Jul 25, 2004 | 06:08 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Originally Posted by Ryan's LT1
Someone who has a 5.0 on this board just had a competition, to "guess" his ET after he did a few mods to it, I can't remember who but it was an AOD 5.0 and he got a 15.013 or something. Another one on this board with a relatively strong 5.0 did something like 14.8 with mods. I can't remember their names, I suck with names, but I've never heard of a stock 5.0 running anywhere near the 13's. The lowest I've seen them run (stock) is somewhere around 14.5.

Also, I think you might be a little low on the estimate of my RWHP, if I'm at 245-250 stock like you said, well, MadZ28 garantee's 13 RWHP alone on a stock motor, and i got tuned for gears and headers. That alone puts me at 258-263. Then Add headers, Gears, CAI, Exhaust... Those will all add probably around atleast 5-10 each, and I'm lowballing it.

I still think I have a pretty massive HP advantage.
And there is another one here that ran 14.2 at 98 bone dead stock (blackhatch) and another (millhouse) running mid 13's at 101 with very little done.

Saying that, the 5.0's mods have him at 200 rwhp at the most. Most 5spd 87-93 5.0's were at the 190 rhwp mark in stock form. The LT-1 will win by a nice margin.
Old Jul 25, 2004 | 06:11 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Originally Posted by 1998GT4.6
The 5.0's put down over 200 at the wheels, not much over but they did, and as some of you guys may know, many of them ran 13's from the factory back in the early 90's, so all this 15 second BS is way off base, yes, there are ALOT of run down 5.0 cars out there that turn HORRIBLE times, don't get me wrong. But I am going off what you said, that that is that this guys motor runs strong. If that is true, with his mods, he would lay down between 220-230rwhp. With your mods I would guess you are between 255-265, but with that MASSIVE weight advantage he has on you, that power is not as big as a factor. I say it comes down to if he can drive or not, but I think your car will pull on him in the higher speeds reguardless, when weight is not such a factor, good luck, let us know the results.
Your breath stinks. You're talking ****. No FACTORY 5.0s ran 13s. Idiot. 15 second car is EXACTLY right.
Old Jul 25, 2004 | 06:16 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Woah Woah Woah... I don't want to start a pissing contest here. I knew there were some quick 5.0's here, but my assumptions with the 190RWHP were correct, thats all I wanted to get by. 14.2 dead stock is pretty damn good for a 5.0, he must be an excellent driver. Same for the one with mid 13's with little done to it. I can assure you that my friend's driving abilitly isn't near that good.

I feel a little better though knowing that someone with a 5.0 told me I was going to win by a nice margin. Makes me feel more confident
Old Jul 25, 2004 | 06:19 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Originally Posted by Ryan's LT1
Woah Woah Woah... I don't want to start a pissing contest here. I knew there were some quick 5.0's here, but my assumptions with the 190RWHP were correct, thats all I wanted to get by. 14.2 dead stock is pretty damn good for a 5.0, he must be an excellent driver. Same for the one with mid 13's with little done to it. I can assure you that my friend's driving abilitly isn't near that good.

I feel a little better though knowing that someone with a 5.0 told me I was going to win by a nice margin. Makes me feel more confident
Well, this jackass isn't spewing bull****. MANY 13 second STOCK 5.0s?
Old Jul 25, 2004 | 06:33 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Will somebody with a clue please tell this moron that back in the day stock 5.0 coupe 5-speeds ran 13.9 on more than one occasion, I could pull up many articles but I am to lazy to argue with somebody dumb enough to think stock 5.0's run 15's. Am I saying this was the norm, not at all, but it has been done many times over the years. And I see you live in Pearland as well. What are your mods? I have a near stock 4.6 if you wanna run em?
Old Jul 25, 2004 | 06:36 PM
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Re: '91 Mustang 5.0 vrs '94 Z28

Originally Posted by 1998GT4.6
Will somebody with a clue please tell this moron that back in the day stock 5.0 coupe 5-speeds ran 13.9 on more than one occasion, I could pull up many articles but I am to lazy to argue with somebody dumb enough to think stock 5.0's run 15's. Am I saying this was the norm, not at all, but it has been done many times over the years. And I see you live in Pearland as well. What are your mods? I have a near stock 4.6 if you wanna run em?
Then how come I know a few people with stock 5.0s that were in the 15s? Why don't you pull the articles for me? It's just extremely difficult for me to believe, that's all.



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