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1991 Formula LB9 vs. 1993 Mustang GT Vert

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Old 04-13-2007, 10:14 AM
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1991 Formula LB9 vs. 1993 Mustang GT Vert

Ok guys this race is fully theory because its gonna make me decide on if I want my car more than this Vert up the road that I always wanted to buy.

ME: 1991 Formula LB9 auto with stock posi, CAI, 3 piece aluminum march underdrive pulleys, plenum egr wall ground down, msd coil, msd wires, msd cap and rotor, pretty much a good tune up.

IT: 1993 Mustang GT convertable 5 speed, pretty much stock except for flowmasters and an offroad h-pipe

I think both of the cars are rated 205hp and 285tq stock because of the piston deal in the 93 stangs. What do you think guys? I really look forward to hearing 25thmustang's opinion too.
Old 04-13-2007, 11:19 AM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

You wanted it...



It really depends what you want to do. You want to go fast, you want to cruise, you want to make a race car, street car, corner carver? If you dont care about racing it much, wqant a cruiser for the summer, then the vert might be the way to go. You want something more solid, better to make handle and drop a nice crate motor in, then the thirdgen might be the one!
Old 04-13-2007, 06:45 PM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

Originally Posted by 25thmustang
You wanted it...



It really depends what you want to do. You want to go fast, you want to cruise, you want to make a race car, street car, corner carver? If you dont care about racing it much, wqant a cruiser for the summer, then the vert might be the way to go. You want something more solid, better to make handle and drop a nice crate motor in, then the thirdgen might be the one!


With gears im sure that 5.0 would be plenty quick for a fun street car.(and most likely faster then your lb9) But if your plans are more serious then i would stick with the thirdgen.
Old 04-14-2007, 07:12 AM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

I think both of the cars are rated 205hp and 285tq stock because of the piston deal in the 93 stangs. What do you think guys? I really look forward to hearing 25thmustang's opinion too.[/QUOTE]


the mustang makes a little less then your car. 205 HP and 275 ft/lbs.Its to close to call.those 5.0 where not weack cars and you have the weak lb9 and the crap 2.73 gears.do you wanna go fast and be able to make turns over 25 mph or do you want to crusie a fox body convert.note the 5.0 in that fox will modd way better then the 5.0 in you formula/at the same time ford parts cost more. its all what you want ether way you cant go wrong.
Old 04-14-2007, 09:08 AM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

If it's just going to be a cruiser in the summer, go with what you think looks best, and would be the most fun. I'm sure that mustang sounds good with that exhaust.


How many miles on both? Is the GT two tone?
Old 04-14-2007, 09:59 AM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

Ok the GT has 125k and my formula has 167k. The Stang is like a green and silver two tone. I love the handling from my Formula and I love the car all together, but I have a feeling she wont want much for the Stang. Its possible for me to have both though.

How would these cars stack up as is in the 1/4 mile? Reason I care is because I know the Stang would go good with mods, but being so young insurance and gas is all my money lol.
Old 04-14-2007, 10:20 AM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

if memory serves i ramber seing a stock auto run 16.0 in the 1/4 mile and a stock 5sp driven like a raped ape got a 15.7.i have never seen a stock auto weaker lb9 on crap gears make a pass here but i would say your somewhere here 15.2-15.8 if your cars running right.
Old 04-14-2007, 11:34 AM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

T the track the heavy vert will probably be a higher 14s car if you launch and shift it right. With some gears and maybe a few more choice mods, low 14s are easy, and 13s arent much tougher after that.

note the 5.0 in that fox will modd way better then the 5.0 in you formula/at the same time ford parts cost more.
This I dont 100% agree with. In the old school 350 carb days the Chevy stuff was cheap, but when you talk about newer fuel injected cars, the Ford 5.0 is one of, if not the cheapest car to modify. This was the main reason I own one of these instead of something else!
Old 04-14-2007, 01:10 PM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

alomost everything ford my uncles 89 fox body gt cost right around 25% more then the same thing for my 350 cars.
Old 04-14-2007, 11:32 PM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

Hmm interesting, because when I look in Summit at the Fbody section and the Mustang section the Mustang stuff is much cheaper. Im not talking a carbed 350, Im talking fuel injected, pass emissions, late model stuff, the Mustang 5.0 (4.6 stuff is expensive) parts seem to be the cheapest!
Old 04-15-2007, 01:01 AM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

the problem with useing summit as a guide is they have there own Summit mustang only catalog
they have alot more more options for mustangs then camaros jegs has a few more camaro engine parts cheaper

a 91 formula lb9 should be faster then a 93 stang as the convert top adds some weight the form will diffently be faster 1/8 mile as the stangs dont have much power down low but after freeway speeds is where the 5.0 really shines but being a convert its not gonna be a very good overall proformance

the stangs always lacked in the handleing and brakeing department but they didnt weigh as much as the f-bodys so even with haveing around the same power output the stangs had an edge there but only after 50-60 mph

if the stang was an auto then it would be even worse as the autos tended to lose almost a full second in the 1/4 ford just didnt make good automatics ive beat 5.0 gt auto cars with my tbi 305 by a carlangth but 5speed cars beat me by 3

it really depends on your preferance if you really like the stang get it but imo stick with the form

Last edited by Azrael91966669; 04-15-2007 at 03:49 PM.
Old 04-15-2007, 10:58 AM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

I have owned a mustang and a good amount of my friends own mustangs. the 5.0 parts are by far cheaper. if you are paying more for 5.0 parts you are getting ripped off plain and simple.
Old 04-15-2007, 11:47 AM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

well they should be cheaper seeing how there where over 1 millon 5.0s made 87-93 such a rare find lol.also i was not refering to just the engine the supension modds etc. still cost a little more the tridgen parts.

Last edited by fastfbody; 04-15-2007 at 11:51 AM.
Old 04-15-2007, 01:58 PM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

Hey if you can have both cars go for it. I like both cars and you would have the best of both worlds in my opinion. I always liked the GT vert.
Old 04-15-2007, 06:16 PM
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Re: 1991 Formula LB9 vs. 1993 Mustang GT Vert

Maybe Ill look into an Fbody, I like this car because I have next to nothing in it and have mid 12 second timeslips... Im retty sure the general consensus is that 5.0 Mustangs are one of the cheapest late model cars to modify, suspension, motor, everything!
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