How does TPI compare?
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Junior Member
Joined: Aug 2003
Posts: 21
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Car: 87 Trans Am
Engine: 5.0 TPI
Transmission: Automatic
How does TPI compare?
My roomate just bought a 95 Mustang GT. His quote was "see that, GT" I said "yea, 87 TA with TPI." My question is this... how does his 5.0L HO Ford Motor compare to my 5.0L TPI Pontiac Motor? Just curious.
If I remember correctly, the 5.0L Mustangs routinely trounced the 5.0L Camaros and Firebirds. I think it had a lot to do with vehicle weight though. I also believe the bore/stroke combinations were different between the two. The Ford had a 4.00 bore with a 3.00 stroke, whereas the Chevy (and correct me if I'm wrong) had a 3.75 bore and a 3.48 stroke.
You'd think the Chevy would make a lot more torque with almost .5" more stroke, but it actually made less- 275 ft-lbs (Chevy) vs 300 (Ford). I think the cam in the 305 was so anemic that it really hampered the Camaro.
You'd think the Chevy would make a lot more torque with almost .5" more stroke, but it actually made less- 275 ft-lbs (Chevy) vs 300 (Ford). I think the cam in the 305 was so anemic that it really hampered the Camaro.
Member
Joined: Oct 2003
Posts: 153
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From: Brooklyn, New York
Car: '86 Camaro
Engine: 406 Small Block
Transmission: 4 Speed
Axle/Gears: 3.45
Originally posted by 305sbc
One makes torque and one does not.
One makes torque and one does not.
But, I wouldn't give 'that' much credit to the anemic 305. This mustang, if it's a stick... will give you a good run, and if you're running stock with an automatic, he might just take you!
Member
Joined: Jun 2003
Posts: 189
Likes: 2
From: Minnesota
Car: 89 GTA
Engine: 350
Transmission: 700R4
Axle/Gears: 3.27
I raced a 2002 mustang GT which had a manual and took him, and that was before most my small mods and new exhaust. It was close but still took him. However i did get took by a mid 80's mustang but it was a police intersepter with 4.11 gears and my 2.73's cant keep up with that in town.
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1989 Trans am 305 TPI Automatic, 2.73 rear, K&N filter, underdrive pulleys, air foil, tb bypass, low restriction exhaust
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1989 Trans am 305 TPI Automatic, 2.73 rear, K&N filter, underdrive pulleys, air foil, tb bypass, low restriction exhaust
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If your stick and he is auto i think it will be close, a good race if you ask me. If he is stick and your auto then you'd better hope he doesnt know his car very well. Mustangs are fast little buggers. But the 5.7 is an easy win. My buddy has a 5.0L Capri (almost identical to mustang) thats mildly modded. He cant even touch my 5.7GTA. I usually burn out for a couple seconds just for show before i blow him away.
95 GT stick should run a 15 flat, which is faster than any auto 305s I know of, if it was a lighter fox, I'd say you wouldn't stand a chance unless it's an auto for both cars. are you a manual 305?? if so you'd have a good run. the only dogs are the 96-97 GTs, those 4.6s are a turd and a half. they make 305s look good lol
Member
Joined: Aug 2003
Posts: 278
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From: Madison, WI
Car: 86 IROC
Engine: 6.2
Transmission: 700r4
Axle/Gears: 10 Bolt 4.10
A 5.0 MUSTANG 5 SPD, WITH A DRIVER WHO CAN SHIFT WILL BEAT ANY STOCK TPI F-BODY, IF IT WERE AN 86-92 FOX. THOSE CARS RUN 14.0'S AND FASTER COMPLETELY STOCK. NOW, WITH THAT SAID, A 95 MUSTANG 5.0 ONLY MAKES 215 HP, AND IS MUCH HEAVIER THAN THE OLDER BODY STYLE. IT WOULD BE AN OK RACE IF YOU'RE BOTH MANUALS, OR AUTOMATICS, BUT I WOULDN'T BET ANYTHING THAT YOU CAN'T AFFORD TO LOSE.... GOOD LUCK!
Senior Member
Joined: Dec 2001
Posts: 620
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From: El Paso, Texas
Car: 2000 Trans Am and a 85 Iroc-Z
Engine: The Mighty LS1& 305 just beat meTPI
Transmission: 4L60E and 700R4
The 305 TPI of 87 ran around a 15.4 or so, so you are off by a few clicks Vs the Stang, maybe if someone was to bump him
Hmmm..... j/k
Anyway, I have a 85 Iroc with a rebuilt 305, small cam, headers, a/c delete and a airfoil(I didn't feel any difference btw) and I took care of my cuz's 96 GT that only had a exhaust and K&N. It was a good little race. Off the line you will get him but after that it is a matter who drives better and shifts better. Good luck!!!
Hmmm..... j/kAnyway, I have a 85 Iroc with a rebuilt 305, small cam, headers, a/c delete and a airfoil(I didn't feel any difference btw) and I took care of my cuz's 96 GT that only had a exhaust and K&N. It was a good little race. Off the line you will get him but after that it is a matter who drives better and shifts better. Good luck!!!
Originally posted by gixxer9
A 5.0 MUSTANG 5 SPD, WITH A DRIVER WHO CAN SHIFT WILL BEAT ANY STOCK TPI F-BODY, IF IT WERE AN 86-92 FOX. THOSE CARS RUN 14.0'S AND FASTER COMPLETELY STOCK. NOW, WITH THAT SAID, A 95 MUSTANG 5.0 ONLY MAKES 215 HP, AND IS MUCH HEAVIER THAN THE OLDER BODY STYLE. IT WOULD BE AN OK RACE IF YOU'RE BOTH MANUALS, OR AUTOMATICS, BUT I WOULDN'T BET ANYTHING THAT YOU CAN'T AFFORD TO LOSE.... GOOD LUCK!
A 5.0 MUSTANG 5 SPD, WITH A DRIVER WHO CAN SHIFT WILL BEAT ANY STOCK TPI F-BODY, IF IT WERE AN 86-92 FOX. THOSE CARS RUN 14.0'S AND FASTER COMPLETELY STOCK. NOW, WITH THAT SAID, A 95 MUSTANG 5.0 ONLY MAKES 215 HP, AND IS MUCH HEAVIER THAN THE OLDER BODY STYLE. IT WOULD BE AN OK RACE IF YOU'RE BOTH MANUALS, OR AUTOMATICS, BUT I WOULDN'T BET ANYTHING THAT YOU CAN'T AFFORD TO LOSE.... GOOD LUCK!
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From: SE Michigan
Car: Bright Red 91 GTA
Engine: CARBED LT4
Transmission: MK6
Originally posted by gixxer9
A 5.0 MUSTANG 5 SPD, WITH A DRIVER WHO CAN SHIFT WILL BEAT ANY STOCK TPI F-BODY, IF IT WERE AN 86-92 FOX. THOSE CARS RUN 14.0'S AND FASTER COMPLETELY STOCK. NOW, WITH THAT SAID, A 95 MUSTANG 5.0 ONLY MAKES 215 HP, AND IS MUCH HEAVIER THAN THE OLDER BODY STYLE. IT WOULD BE AN OK RACE IF YOU'RE BOTH MANUALS, OR AUTOMATICS, BUT I WOULDN'T BET ANYTHING THAT YOU CAN'T AFFORD TO LOSE.... GOOD LUCK!
A 5.0 MUSTANG 5 SPD, WITH A DRIVER WHO CAN SHIFT WILL BEAT ANY STOCK TPI F-BODY, IF IT WERE AN 86-92 FOX. THOSE CARS RUN 14.0'S AND FASTER COMPLETELY STOCK. NOW, WITH THAT SAID, A 95 MUSTANG 5.0 ONLY MAKES 215 HP, AND IS MUCH HEAVIER THAN THE OLDER BODY STYLE. IT WOULD BE AN OK RACE IF YOU'RE BOTH MANUALS, OR AUTOMATICS, BUT I WOULDN'T BET ANYTHING THAT YOU CAN'T AFFORD TO LOSE.... GOOD LUCK!
id love to be the one who proves you wrong...my G92 LB9 with a flowmaster, K&N, the EGR walls ground down and me driving it like it should be ran a 14.1@almost 97....i dunno about you, but that will run all over a LX 5 speed...and LT1 and L98...and would leave a 94-95 5.0....those 4.6's? haaaaaaaaa lol......
Properly driven a G92 LB9 will whoop any L98 car as i have...DAMN THOSE G92 L98's
Member
Joined: Mar 2003
Posts: 157
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From: New Jersey
Car: 87 plane jane with gfx
Engine: 350 worked vortec head .515 .515 cam and 1.6 rockers and shorties for now til i can afford the supercomps
Transmission: super t-10 or t-5
Axle/Gears: auburn with 3.42 stock axles
look most mustang new or old run low 15 high 14s with a crappy driver you need to run a mid 14 to even come close to beating him i know from experience i run a 14.5 and get beat by ones that just have exhaust,they reason they are faster is they are lighter thats it, but with the newer ones you have a better shot because i was racing 02 GT WITH A GRAND MARQUIS last night we were rollin already buit i still beat him.newer they are the weaker they get. good hunting though
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