Horse power help!!
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Launching!
Joined: May 2012
Posts: 235
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From: Gurnee IL
Horse power help!! I bought a 93 z28 reaclety like in may the car has been sitting for 4 years the guy said it has a hot cam milled heads k&n intake bbk 58mm throttle body 1.6 rockers slp stainless headers borla stainless exhaust shift kit and a 2800 stall How much horse power do your guys think my car has. My cousin has a 2000 z28 with a 2.73 gear stock just with a slp air lid and I can't beat him and my car ran a 12.9 before the guy said who I bough it from but I can't even beat my cousins car what's wrong with my car I did a 13.3 at 104. I really want my car to be a mid 12 what would be the best way to do this with keepin the stock bottom end... And how much horse power can a stock rear end handle. Thanks for looking guys.
Last edited by ManMuchwano93z28; Jun 13, 2012 at 02:25 AM.
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From: Nw suburbs chicago
le2 heads and custom cam from le, elliotportworks.com or an AI setup. some suspension work will do you some favors. what kind of tires does he have and you? is he beating you by a lot or a little? are you sure he doesnt have cam and telling you it just intake to mess with you or some n20?
Thread Starter
Launching!
Joined: May 2012
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From: Gurnee IL
No I know for a fact he only has a air lid and I wanted to keep my cam just make the most and cheapest horse power I can with this setup I have when I bought my car the stupid *** put winter tires on it so they never hook just spin and he has z rateds Don't know the tire size off the top of my head When we race on the street from like a 30 roll he beats me by like a half of fender and on the free way from like a 50-110 he walks on me by like a car and a half
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Launching!
Joined: May 2012
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From: Gurnee IL
Thread Starter
Launching!
Joined: May 2012
Posts: 235
Likes: 0
From: Gurnee IL
So the car is untuned. Those chips do nothing other than advance the timing and are made for a stock engine. You need a tune, either mail order or dyno, gears, and might want to consider a bigger stall. Do a full tuneup too if you already havnt(plugs, wires, fuel filter, etc) to make sure everything else is good to go, if it has been sitting for 4 years. There is no reason your car cant be a low 12 second car if you finish setting it up properly.
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Joined: Aug 2008
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From: Nebraska
My god is it really that hard to use punctuation??? Makes it hard to read what you write. So annoying...
But anyways that Jet chip will not do anything significant for performance at all. It's gonna need a good dyno tune or at least a PCMforless mail order tune to run worth a crap. FWIW my bolt-on LT1 runs what your car does so there's definitely a lot left on the table with your setup.
But anyways that Jet chip will not do anything significant for performance at all. It's gonna need a good dyno tune or at least a PCMforless mail order tune to run worth a crap. FWIW my bolt-on LT1 runs what your car does so there's definitely a lot left on the table with your setup.
You need to get it tuned for the hotcam. I have the hotcam and LT4 springs with stock rockers and I trap 108mph. You should run 108-110mph.
Check out Ion @ Madtuner for a tune. He's local to us in Elgin so no shipping.
Check out Ion @ Madtuner for a tune. He's local to us in Elgin so no shipping.
Last edited by guppymech; Jun 13, 2012 at 01:31 PM.
Thread Starter
Launching!
Joined: May 2012
Posts: 235
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From: Gurnee IL
Okay I'll check it out... Do u know much he charges and how much horsepower do u guys think I'll get out of it once it's tuned
Dont stress on the horsepower numbers. A stalled auto isn't going to put down impressive numbers. But once it's running correctly, the track time should show that it's putting down some power. You should also be beating a lid only ls1 car once it's running correctly. My PCMforless tune was under a hundred and I bought the cable to upload it to my pcm myself.
Just saw it's a 93 so you can't upload the tune yourself. Also since it's been sitting so long, do some maintenance. You'd be surprised how much difference a tune up can make.
Just saw it's a 93 so you can't upload the tune yourself. Also since it's been sitting so long, do some maintenance. You'd be surprised how much difference a tune up can make.
Last edited by nomoneyz; Jun 14, 2012 at 11:34 AM.
Thread Starter
Launching!
Joined: May 2012
Posts: 235
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From: Gurnee IL
Dont stress on the horsepower numbers. A stalled auto isn't going to put down impressive numbers. But once it's running correctly, the track time should show that it's putting down some power. You should also be beating a lid only ls1 car once it's running correctly. My PCMforless tune was under a hundred and I bought the cable to upload it to my pcm myself.
Just saw it's a 93 so you can't upload the tune yourself. Also since it's been sitting so long, do some maintenance. You'd be surprised how much difference a tune up can make.
Just saw it's a 93 so you can't upload the tune yourself. Also since it's been sitting so long, do some maintenance. You'd be surprised how much difference a tune up can make.