finally have some numbers, what should i upgrade?_
09-25-2012, 11:18 PM
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finally have some numbers, what should i upgrade?_ finally got to the track yesterday, my first (best) run was a 13.07 @ 101 mph. 1.95 60' after that run the rest of them trapped between 104 and 106 but et's were between 13.2 and 13.4
the car is a 94 formula firebird lt1 with a powerdyne supercharger. it has shorty headers, 3.23 gears and these runs were on street tires. what kind of gains would you guys expect with 3.73 gears, cheater slicks, and an exhaust cutout? any other mods i should consider?
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the car is a 94 formula firebird lt1 with a powerdyne supercharger. it has shorty headers, 3.23 gears and these runs were on street tires. what kind of gains would you guys expect with 3.73 gears, cheater slicks, and an exhaust cutout? any other mods i should consider?
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09-26-2012, 12:55 AM
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get some long tubes on it. has it been fully tuned yet? my buddy had a 94 formula with a lower compression 355, baby cam, full exhaust, stock stall, stock 2.73 gears and it ran 13 flat @111mph all day long.
09-26-2012, 09:55 AM
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i don't know for sure if/how it was tuned. i know it smells like its burning rich, which makes me think there is at least a mail order tune on it. cant say for sure though. im planning a dynotune before i put it away this year. i have the msd 6a box too
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09-26-2012, 12:35 PM
#8
My 95 Z28 with nothing more than a catback went 13.4 @ 104. Falken Street tires.
W/ 6lbs of boost you have something wrong. What is your A/F and timing at?
Dont look at your ET if you are trying to get a baseline on street tires.. your MPH is where you want to look... yours is low, very. Your weight and MPH will tell you your HP. I wouldnt upgrade anything right now... fix what is wrong.. something likely is.
W/ 6lbs of boost you have something wrong. What is your A/F and timing at?
Dont look at your ET if you are trying to get a baseline on street tires.. your MPH is where you want to look... yours is low, very. Your weight and MPH will tell you your HP. I wouldnt upgrade anything right now... fix what is wrong.. something likely is.
09-26-2012, 12:38 PM
#9
finally got to the track yesterday, my first (best) run was a 13.07 @ 101 mph. 1.95 60' after that run the rest of them trapped between 104 and 106 but et's were between 13.2 and 13.4
the car is a 94 formula firebird lt1 with a powerdyne supercharger. it has shorty headers, 3.23 gears and these runs were on street tires. what kind of gains would you guys expect with 3.73 gears, cheater slicks, and an exhaust cutout? any other mods i should consider?
Posted from LS1Tech.com App for Android
the car is a 94 formula firebird lt1 with a powerdyne supercharger. it has shorty headers, 3.23 gears and these runs were on street tires. what kind of gains would you guys expect with 3.73 gears, cheater slicks, and an exhaust cutout? any other mods i should consider?
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Take a look at our '95 Formula at the above link. Can you get more boost out of that Powerdyne, we're running 9 psi with the ProCharger P-1SC on stock internals. Bob
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09-26-2012, 03:21 PM
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okay thanks alot guys. Bob that article is exactly what i have been looking for, a detailed write up on a similiar set up to mine. how are you able to run so much boost without predetonation?
im not sure what my air to fuel is but the exhauast smells like its running rich.
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im not sure what my air to fuel is but the exhauast smells like its running rich.
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09-26-2012, 03:31 PM
#11
okay thanks alot guys. Bob that article is exactly what i have been looking for, a detailed write up on a similiar set up to mine. how are you able to run so much boost without predetonation?
im not sure what my air to fuel is but the exhauast smells like its running rich.
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im not sure what my air to fuel is but the exhauast smells like its running rich.
Posted from LS1Tech.com App for Android
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09-26-2012, 05:07 PM
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Originally Posted by Bob@BruteSpeed
Quote:
Originally Posted by jhobbins
okay thanks alot guys. Bob that article is exactly what i have been looking for, a detailed write up on a similiar set up to mine. how are you able to run so much boost without predetonation?
im not sure what my air to fuel is but the exhauast smells like its running rich.
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ProCharger standard LT1 kit with a P-1SC comes at 8 psi. With a good tune 8 to 9 psi with 93 octane fuel is within reason, on a stock bottom end. You should get a wide band sensor and install it in your car, so you know what the fuel ratio is. Bob
Originally Posted by jhobbins
okay thanks alot guys. Bob that article is exactly what i have been looking for, a detailed write up on a similiar set up to mine. how are you able to run so much boost without predetonation?
im not sure what my air to fuel is but the exhauast smells like its running rich.
Posted from LS1Tech.com App for Android
ProCharger standard LT1 kit with a P-1SC comes at 8 psi. With a good tune 8 to 9 psi with 93 octane fuel is within reason, on a stock bottom end. You should get a wide band sensor and install it in your car, so you know what the fuel ratio is. Bob
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09-26-2012, 06:46 PM
#15
I'd add a methanol injection kit to it. You'll pick up a lot of power by cooling down the inlet air temps. Bob
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09-26-2012, 06:57 PM
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I'm not positive on injectors, but they look stock. I'm looking into buying some, that was going to be one of the next things I bought for the car. Do you know of any way I can find out for sure what size they are?
I've looked into the meth injection, but I'm not sure I want to do it due to the fact its a mainly street car and it would probably get expensive keeping it filled with the methanol
I've looked into the meth injection, but I'm not sure I want to do it due to the fact its a mainly street car and it would probably get expensive keeping it filled with the methanol
09-26-2012, 06:58 PM
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this thread has gone along way without the obvious upgrade stated.... ls1 swap? if you are looking for good e.t. get good tires, you want easy, go with stiff sidewall MTs. make sure the car has a solid tune in it too, lt1s like to get heat soaked easily, i'm with bob get meth.
09-26-2012, 07:19 PM
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this thread has gone along way without the obvious upgrade stated.... ls1 swap? if you are looking for good e.t. get good tires, you want easy, go with stiff sidewall MTs. make sure the car has a solid tune in it too, lt1s like to get heat soaked easily, i'm with bob get meth.
