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firebird vs 5.0

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Old Jan 15, 2013 | 11:59 AM
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From: nw indiana
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
firebird vs 5.0

my neighbor has a auto,convertable, efi 5.0 w/ catback,cai, underdrive pulleys on 215/xx/15 rubber vs my stock l98

is it a race? it WILL happen anyways but i want to hear opinions til the weather clears up.


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Old Jan 15, 2013 | 12:02 PM
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Car: 1991 firebird GTA
Engine: 305 tpi
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Axle/Gears: 3.42 posi
Re: firebird vs 5.0

I'd say he will pull....
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Old Jan 15, 2013 | 12:14 PM
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Re: firebird vs 5.0

You could get him. It'll be close. The feared 5.0 is only scary as long as its backed by a T-5. Autos just don't seem nearly as mean, almost like a different car.
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Old Jan 15, 2013 | 12:55 PM
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Car: 1989 formula
Engine: 350 l98
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Axle/Gears: 327
Re: firebird vs 5.0

You should be able to take him, his car being an auto and vert, good luck.

by the way what year is the stang
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Old Jan 15, 2013 | 01:37 PM
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From: nw indiana
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
idk year i know its fuel injected so 86 or newer right??


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Old Jan 15, 2013 | 01:46 PM
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Re: firebird vs 5.0

L98 eats 5.0s...nuff said. T5 makes no difference...at least for me that is.
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Old Jan 15, 2013 | 03:14 PM
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From: Milwaukee Wisconsin
Car: 1991 firebird GTA
Engine: 305 tpi
Transmission: 5spd
Axle/Gears: 3.42 posi
Re: firebird vs 5.0

I've seen first hand l98's get eaten by a 5.0 spd with a exhaust.
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Old Jan 15, 2013 | 03:20 PM
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From: nw indiana
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
i raced one other 5.0, a 5spd, unknown mods(loud like my neighbors),met him traffic and raced a very short 0-60,70ish off a street light which i led by one car length. it could have been more driver then trans but who knows.


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Old Jan 15, 2013 | 03:57 PM
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Re: firebird vs 5.0

Originally Posted by 89iroc89
I've seen first hand l98's get eaten by a 5.0 spd with a exhaust.
Those were NOT L98s....or they missing cylinders...
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Old Jan 15, 2013 | 04:38 PM
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Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
Re: firebird vs 5.0

If you don't pull on an Automatic 'vert, there is something wrong with your car... His car is probably 15.3 1/4 at best...
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Old Jan 15, 2013 | 06:04 PM
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From: nw indiana
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
there is alil wrong w/ her. the posi is worn out and the trans will hold at 5000 for 2-3 sec before shifting. was told my tv cable needed to be set


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Old Jan 15, 2013 | 07:58 PM
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From: Milledgeville, GA
Car: 1992 Camaro Z28
Engine: L98
Transmission: 86' 700R4
Axle/Gears: 10 Bolt, 3.42's
Re: firebird vs 5.0

I don't think your TV cable is the problem. Mine does the same thing and I can definitely tell you it's not the TV cable. I just think the bands are going out.
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Old Jan 15, 2013 | 08:17 PM
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Axle/Gears: Moser 9"
Re: firebird vs 5.0

an l98 in good tune should have no problem whooping a heavy auto fox
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Old Jan 16, 2013 | 04:30 PM
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From: Johnstown, PA
Car: 94 camaro z28
Engine: lt1
Transmission: 4l60e
Axle/Gears: 3.73
Re: firebird vs 5.0

I would say an l98 formula would kill and auto vert stang but i don't know f-bomb's car has a certain shall we say track record. Even with one tire fire as long as it runs strong you should smoke him.
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Old Jan 16, 2013 | 04:52 PM
  #15  
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From: nw indiana
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
lmao my racing record is suprisingly good for being a 15sec car. i have no doubt said muskrat is a dog and runs 16s


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Old Jan 19, 2013 | 08:54 PM
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From: Austin, TX
Car: 1989 G92 IROC-Z
Engine: 5 Liter 305
Transmission: T5
Axle/Gears: 3.45
Re: firebird vs 5.0

Originally Posted by jayhawk
You could get him. It'll be close. The feared 5.0 is only scary as long as its backed by a T-5. Autos just don't seem nearly as mean, almost like a different car.
+1

AOD 5.0's pull nothing like an auto f-body. I speak from experience in owning many fox bodies. I know an aod fox will take a tbi 305. If you have TPI, you win.
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Old Feb 1, 2013 | 11:51 PM
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Car: 92 Camaro RS
Engine: LS1
Transmission: T56
Axle/Gears: 10bolt w3.42 Torsen
Re: firebird vs 5.0

what gears does he have? my buddy had a 88 5.0 gt vert with an auto(this 88 was a cali car which got the mass air before all the other 5.0 in 89) and i think 3.73 gears. i would leave him sitting on the line and he would pass me in my 3rd or 4th gear. i have the L03, 5speed, 3.42posi, and BFG drag radials and run 15.1. hope this helps.
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Old Feb 3, 2013 | 10:42 PM
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Engine: 305 TPI
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Re: firebird vs 5.0

Originally Posted by TxTtopZ
+1

AOD 5.0's pull nothing like an auto f-body. I speak from experience in owning many fox bodies. I know an aod fox will take a tbi 305. If you have TPI, you win.
Not sure where you came up with that. Ran a 209K mile Auto 2.73 open differential TBI 305 Formula in horrible shape, completely sludged internally, OEM spark plugs & wires, spark knocking, running lean, blowby completely saturating the air cleaner down the local 1/8 in stock form and ran a 9.5 @ 73 on a 2.2s 60'. Auto with 2.73s and missmatched crappy oem sized tires. That was the baseline for more to come. Started playing with the exhaust and stock tune, but ended up blowing a valve cover gasket. Pulled the valve covers off and was greated with a sludged nightmare. Found a $275.00 5.7 Vortec long block with a blown intake gasket and am in the process of swapping it out.

Last edited by Fast355; Feb 3, 2013 at 10:46 PM.
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Old Feb 5, 2013 | 05:42 PM
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From: Austin, TX
Car: 1989 G92 IROC-Z
Engine: 5 Liter 305
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Re: firebird vs 5.0

Originally Posted by Fast355
Not sure where you came up with that. Ran a 209K mile Auto 2.73 open differential TBI 305 Formula in horrible shape, completely sludged internally, OEM spark plugs & wires, spark knocking, running lean, blowby completely saturating the air cleaner down the local 1/8 in stock form and ran a 9.5 @ 73 on a 2.2s 60'. Auto with 2.73s and missmatched crappy oem sized tires. That was the baseline for more to come. Started playing with the exhaust and stock tune, but ended up blowing a valve cover gasket. Pulled the valve covers off and was greated with a sludged nightmare. Found a $275.00 5.7 Vortec long block with a blown intake gasket and am in the process of swapping it out.
TBI fbody typically runs in the high 15's...mids at best. 16's arent out of the question for that matter. AOD stangs just a couple tenths faster. This is all published info.

But where I speak comes from owning many of both. The Mustangs typically are quicker. Lighter, more HP and TQ.... you know. Just my experience FWIW..
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Old Feb 5, 2013 | 09:56 PM
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Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: firebird vs 5.0

Originally Posted by TxTtopZ
TBI fbody typically runs in the high 15's...mids at best. 16's arent out of the question for that matter. AOD stangs just a couple tenths faster. This is all published info.

But where I speak comes from owning many of both. The Mustangs typically are quicker. Lighter, more HP and TQ.... you know. Just my experience FWIW..
There are some factory freaks out there with the 5spd that run low 15s. The car I was messing with had an open element, full catless exhaust, and tuned eprom.
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Old Feb 8, 2013 | 09:53 AM
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Car: 1991 Formula Firebird
Engine: L98 with headers/exhaust
Transmission: 700R4
Axle/Gears: 3.23 10-bolt
Re: firebird vs 5.0

If your car is running right and you don't blow the launch, you will pull him easily. Even if he was a 5-speed, you'd win and AODs suck from the factory...
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Old Feb 11, 2013 | 03:22 AM
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Re: firebird vs 5.0

Originally Posted by 88FormulaF_Bomb
it WILL happen...
Well, did it happen?

What's with you guys, call someone out, or get called out, then race and get it over with. It takes less than a minute to find out who won. The streets here in New York and New Jersey are freezing, but if I got called out by a neighbor we'd be running that night...
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Old Feb 11, 2013 | 08:34 AM
  #23  
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From: nw indiana
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
temp was low 40s. streets were very cold still. left off a street light. slightly uphill, lotsa wheel spin from both of us.
nose to nose til i hit 2nd then i ran away with it. let out at 80 with about 3 lengths.




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Old Feb 11, 2013 | 08:41 AM
  #24  
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From: nw indiana
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
also this happened the day before i made OP
i just wanted to see what everyones opinion was. also when im done with my top end swap. il buy a decent camera so we can all watch next years races. from 3-12 to now ive raced almost 50x with this car,i hope 2013 is just as fun


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Old Feb 13, 2013 | 09:37 AM
  #25  
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Car: A lot and 86' Z28 and 88' Camaro
Engine: 305, 383 and 565
Transmission: 700R4, th400 and 4L80
Axle/Gears: Frd 8.8 /3.27 and S60
Re: firebird vs 5.0

Good run, don't sleep on the AOD stangs. Before my mods my 91 GT went 14.5 on 235/55 street tires with a stock rebuilt AOD, CAI, headers/exhaust, 3.55 gears, bumped up timing, full smog crap, full ac/heat , heavy steel aftermarket wheels and no weight reduction. 3500 rpm converter change droped that to 13.9
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Old Feb 13, 2013 | 09:49 AM
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From: nw indiana
Car: 1988 firebird formula 350
Engine: L98
Transmission: 700r4
Axle/Gears: 2.77
Originally Posted by Big Dog Chevy
Good run, don't sleep on the AOD stangs. Before my mods my 91 GT went 14.5 on 235/55 street tires with a stock rebuilt AOD, CAI, headers/exhaust, 3.55 gears, bumped up timing, full smog crap, full ac/heat , heavy steel aftermarket wheels and no weight reduction. 3500 rpm converter change droped that to 13.9
his is on 215/xx/xx rubber, stock gear, stock converter, stock exhaust manifolds, half *** cat back, autozone cai vs my stock tpi motor (no cats, a dynomax muff, and a chip that says "for off road use only") aka stock


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Old Feb 13, 2013 | 09:54 AM
  #27  
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From: Burbs, Illinois
Car: A lot and 86' Z28 and 88' Camaro
Engine: 305, 383 and 565
Transmission: 700R4, th400 and 4L80
Axle/Gears: Frd 8.8 /3.27 and S60
Re: firebird vs 5.0

Originally Posted by 88FormulaF_Bomb
his is on 215/xx/xx rubber, stock gear, stock converter, stock exhaust manifolds, half *** cat back, autozone cai vs my stock tpi motor (no cats, a dynomax muff, and a chip that says "for off road use only") aka stock


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Yeah with all what he had he didn't have a chance. If he read up on the stang forums he can get it into the low 13s very easy and for cheap (with stock parts too so watch out). my block has 250k miles on it lol!
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Old Feb 13, 2013 | 12:53 PM
  #28  
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Re: firebird vs 5.0

Originally Posted by Big Dog Chevy
Good run, don't sleep on the AOD stangs. Before my mods my 91 GT went 14.5 on 235/55 street tires with a stock rebuilt AOD, CAI, headers/exhaust, 3.55 gears, bumped up timing, full smog crap, full ac/heat , heavy steel aftermarket wheels and no weight reduction. 3500 rpm converter change droped that to 13.9
A prime example of what a good set-up can do for a car. No real power mods, just making what you have work better. I love stories like this, even if it is about a mustang.
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Old Feb 13, 2013 | 12:58 PM
  #29  
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From: Burbs, Illinois
Car: A lot and 86' Z28 and 88' Camaro
Engine: 305, 383 and 565
Transmission: 700R4, th400 and 4L80
Axle/Gears: Frd 8.8 /3.27 and S60
Re: firebird vs 5.0

A prime example of what a good set-up can do for a car. No real power mods, just making what you have work better. I love stories like this, even if it is about a mustang.

True, oh by the the way it's much faster than that now (11.20s on the stock short block)
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