LT1-LT4 Modifications 1993-97 Gen II Small Block V8

New motor

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Old Aug 29, 2012 | 09:41 PM
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Okay so i have have been saving to build my 1996 camaro z28's lt1 up. I am currently just waiting for my appointment with geoff smith at next level performance on the 10. but was looking foward to see what some of you thinkg the overall horsepower, okay all the mods i did we had the block decked and bored 30 over put a 4340 crank h beam rods and forged mahle pistons, a 292 comp cam 584. lift matching lifters, summit racing roller rockers, fully ported intake with and a 58mm trickflow throttle body a 85mm mass airflow sensor and a k &n cold air intake, 36lb injectors, 215cc intake 80cc exhaust dart racing heads with 1 3/4 full length headers. also got a blaster coil a msd pro billet distributor and a msd 6al ignition box. and have a 3500 stall converter i know it will be a general but just kiling time for the net week
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Old Aug 29, 2012 | 10:19 PM
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really should ask questions FIRST then build a car.
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Old Aug 29, 2012 | 10:27 PM
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Well i built the car the way i wanted and wasnt as much asking questions as much as just OPINIONS on what they think a car with those mods would make horsepower range.
but thanks for the advice.
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Old Aug 29, 2012 | 10:33 PM
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Originally Posted by Taz4e
Okay so i have have been saving to build my 1996 camaro z28's lt1 up. I am currently just waiting for my appointment with geoff smith at next level performance on the 10. but was looking foward to see what some of you thinkg the overall horsepower, okay all the mods i did we had the block decked and bored 30 over put a 4340 crank h beam rods and forged mahle pistons, a 292 comp cam 584. lift matching lifters, summit racing roller rockers, fully ported intake with and a 58mm trickflow throttle body a 85mm mass airflow sensor and a k &n cold air intake, 36lb injectors, 215cc intake 80cc exhaust dart racing heads with 1 3/4 full length headers. also got a blaster coil a msd pro billet distributor and a msd 6al ignition box. and have a 3500 stall converter i know it will be a general but just kiling time for the net week
The appointment is for a dyno tune? I thought Geoff didn't do LT1s anymore, but a lot of killer LSx cars have come out of that shop.

They do great work, but are on the expensive side. My car was dyno tuned there for its last setup and the called in the Speed Density specialist to drive over from Daytona since mine is a 93.

What brand stall? That will make a huge difference on an auto.
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Old Aug 29, 2012 | 10:40 PM
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I called him and made the appointment and told him it was a lt1 and he set it so i hope so. yea a little pricey but after the money thats in the motor dont wanna go the cheap route now. The converter i dont know the brand my dad gave it to me off of his vega when he got a 4000. but it made a huge diffrence on the car stock..
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Old Aug 30, 2012 | 05:28 AM
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Catalog builds make me sad.

I would say 400-410whp.
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Old Aug 30, 2012 | 05:31 AM
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Get new rockers now before they spill needle bearings in ur New motor.
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Old Aug 30, 2012 | 06:32 AM
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My "opinion" is with ramair95ta and 96capricemfg, you should ask questions first then build. You spent more money than you could have and will end up with less hp.

What is your compression ratio? Your catalog build leads me to believe it is low, so I'll guess 360rwhp through that auto.
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Old Aug 30, 2012 | 07:16 AM
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I got new rockers, i understand everything everybody is saying about a catalog build but this is the first motor i built and i had my father telling me what i needed and what to get i trusted him since he has a vega that runs 9.72 are motors are similar other than he is carb and i stuck to fuel injection. but i guess i will just have to see what it puts out on the dyno.
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Old Aug 30, 2012 | 07:18 AM
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and the compression is low i believe my dad said it should be around 11:1 but that only because in the near future i want to take it from being naturally aspirated to s/c
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Old Aug 30, 2012 | 07:35 AM
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Depending on the looseness of the stall I'll say around 370.
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Old Aug 30, 2012 | 07:52 AM
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With a high stall built for a Vega and then putting it in a heavier f-body I bet you blow through the stall making the number quite disappointing, unless that cam is so bad on lowend it doesn't blow through the stall.

You did not say what the stroke on your new crank was.
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Old Aug 30, 2012 | 07:55 AM
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Okay so i feel stupid i forgot to tell u about the fact that its a 383 stroker built not just a 350 bored 30 over, and let me say clearencing the block sucks
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Old Aug 30, 2012 | 08:09 AM
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His vegas small block is a different breed than the gen II motors, they have a much larger head selection and supported aftermarket, but with our reverse flow cooling system we can run nearly 13:1 on pump gas.
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Old Aug 30, 2012 | 08:54 AM
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Yea they are and out intake selection is very sad.
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Old Aug 30, 2012 | 11:19 AM
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Your lack of knowledge of the LT1 is certainly showing unfortunately. The intake selection is "sad" because it has been very difficult to improve on the stock one since it flows so well.

A 383 over a 350 doesn't mean a whole lot unless you have the valvetrain to back it up.
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Old Aug 30, 2012 | 11:37 AM
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I have talked to Geoff @ Next Level, and every time I get the run around. you say LT1 ans people run for the hills! I Got my car tuned in Port Orange by Redline, he is on here, look in the FL
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Old Aug 30, 2012 | 01:28 PM
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hey i did say that this is the first motor i built so cut me some slack and i read that about the stock intake thats why i stuck with it and just bought one fully ported.. I dont understand how that shows my lack of knowledge though i am just saying when your looking through parts and ls's have pages and you have stock or choice of two eldebrocks.

Last edited by Taz4e; Aug 30, 2012 at 01:40 PM.
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Old Aug 30, 2012 | 01:50 PM
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To make proper use of the forums you have to understand the stupid can type just as much as those who know what they are doing so there is a LOT of bad info.

Which "85mm MAF"? The aftermarket ones like Granatelli mostly cause tuning issues and are MUCH more failure prone. Ask the tuner what he wants, a stock MAF is plenty for your build and will save tuning time. Every one of your "ignition upgrades" serves to do nothing but make the system less reliable without any additional power.

I think that head comes with Comp 987 springs which is unlikely to control that cam.

I would avoid heads/cam cars because I think the average one will rape your car.

Far as "first motor" this is a very good argument to start slow, you spent a LOT of money doing things not so well and probably don't have the budget to straighten it out. Had you started smaller you could have had a LOT more knowledge when you spent this kind of budget and gotten a lot more for your dollar.
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Old Aug 30, 2012 | 02:00 PM
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it was the Granatelli i will def ask him.. and if anything will save me the $$ and send it back. I am not sure the number of the spring in the heads i will have to look at the paperwork in my car but i do know they said they could handle .600 lift, thats disapointing about the ignition. im not here stating i know everything i just wanted to have a fast car and decided to build up my lt1 thats why i joined this fourum because half the time i looked anything up this site was one of the first 5 suggestions
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