350 TPI HP estimates
05-04-2006, 07:15 PM
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Car: 87 GTA, 97 Formula
Engine: 350 TPI, 350 LT1
Transmission: T5, A4
Axle/Gears: 9 bolt 3.45, 3.42
350 TPI HP estimates
Hey guys i was just wondering if anyone had any estimates of the horspower of this set up. I am trying to finish school now and dont have the time and money for a dyno. If it helps the car feels like it might be in the mid 14s. w/ a 5spd and 3.27s. ( I am a terrible driver also)
Motor: 350 TPI out of vette.
Vortec Aluminium Heads
Mild cam <--- unsure as to what exact model but only slightly more agressive then stock. You can almost barely hear its cammed at idle.
3.5 Inch cat back exh w/ Flowmaster muffler.
Smog pump yanked off
A/C Compressor Yanked off
New MAF sensor
Air Foil thingy.
I really dont know much about this car as i plan to tear it down and inspect it after school. But i want to know what im dealing with, and if i gear this thing and throw a bottle in it, if it will go 12s. If so i can save a lot of money on the crate motor i would have to buy to get to my magic number of 13.0
Motor: 350 TPI out of vette.
Vortec Aluminium Heads
Mild cam <--- unsure as to what exact model but only slightly more agressive then stock. You can almost barely hear its cammed at idle.
3.5 Inch cat back exh w/ Flowmaster muffler.
Smog pump yanked off
A/C Compressor Yanked off
New MAF sensor
Air Foil thingy.
I really dont know much about this car as i plan to tear it down and inspect it after school. But i want to know what im dealing with, and if i gear this thing and throw a bottle in it, if it will go 12s. If so i can save a lot of money on the crate motor i would have to buy to get to my magic number of 13.0
05-04-2006, 07:33 PM
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Car: iroc
Engine: 350
Transmission: 700r4
my guess is its prob already in the 13's
alot of stock L98's ran mid 14's stock so with a cam heads and exhaust i can definitely see a 13
horsepower wise sense you dont really have specific specs on the aftermarket parts i would say 300-325 give or take
alot of stock L98's ran mid 14's stock so with a cam heads and exhaust i can definitely see a 13
horsepower wise sense you dont really have specific specs on the aftermarket parts i would say 300-325 give or take
05-04-2006, 10:55 PM
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Car: 92 Precision Red Firebird
Engine: v6->357 vortec xe262h rpm intake
Transmission: t5-> t56
Axle/Gears: 10bolt 3.42s
what kind of aluminum vortecs? fastburns? or the corvette 113 head casting?
05-05-2006, 02:17 AM
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Car: 1991 Z28
Engine: 5.7 TPI L98
Transmission: 700-R4
Axle/Gears: Moser 9" with 4.11
Originally Posted by urbanhunter44
AssCloud and irocyourpants. Great names, both of you. A+
I think your car should be in the low/mid 14's right now. If you want 12's for easy, get a 150 wet shot of juice ($500). Its totally safe if you follow the directions and retard the timing a bit. I got all the mods and trial/error stuff on my homepage (videos) link in my sig. Mid 12's all day long.
05-05-2006, 07:52 AM
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Car: 87 GTA, 97 Formula
Engine: 350 TPI, 350 LT1
Transmission: T5, A4
Axle/Gears: 9 bolt 3.45, 3.42
Yeah Mid to low 14s is definately more realistic. I dont have a lot of experience with f bodies but this car definately pulls hard just off idle and then dies soon there after. Almost as if im making nothing but torque thats why i was asking about what kind of horsepower i should be making, it feels plenty powerful down low and a dog up top. and i de geared it a little, it should be the opposite.
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