LT1 stroked and Turbo
This is a discussion on LT1 stroked and Turbo within the LT1 forums, part of the Vehicle Specific category; I have an 94 LT1, with A4 tranny out of a Z28 and I am looking to stoke it out ...
05-28-2007, 04:21 PM #1
LT1 stroked and Turbo
I have an 94 LT1, with A4 tranny out of a Z28 and I am looking to stoke it out to 383 with an eagle rotating kit. I also have purchased a Garrett T76 turbo and an intercooler. I have a 56mm throttle body, MSD optispark, Miziere electric water pump 160 thermo, underpulley, ported heads, and am looking at an elelbrock or lingenfelter intake, and upgrading the injectors. The Turbo puts out 15lbs of boost at 4k on a 2000 ls1 camaro and I was wondering how much power this thing is gonna make? I was hoping to get atleast 450hp out of the stroked motor with out the boost turned up. I was also looking to not run the turbo to all 15lbs just about 10-12 at max. So how much power is it gonna be?
05-28-2007, 05:07 PM #2
05-28-2007, 07:04 PM #3
05-28-2007, 10:56 PM #4
- Join Date
- Jul 2006
purple pearl metalic
- 1994 Z28 Camaro
05-29-2007, 12:15 AM #5
Coolant running into the heads first (before going through the block) is coming straight from the radiator, and is therefore its coolest. So the heads get the greatest cooling affect. In theory, it keeps the cylinder head cooler, and lower combustion temperatures, which would help with detonation.
05-29-2007, 09:26 AM #6
05-29-2007, 11:37 AM #7
05-30-2007, 10:18 AM #8
I know that the tranny will be maxed out on this, of course it is going to get a complete rebuild/ upgrade, along with the rear end. Some of this is going to be done myself, some of it by a mechanic friend of mine. It is a project car, an 88 formula. Alot of this project will have to be fabricated in shop. I already have most of the suspension and almost all the bolt ons. I dont think (and hope) that it will cost nearly that much. My friend completely did my exhaust on my 2000 TA (dual exhaust) for $300, fuel pump in my 88 formula for 50 bucks plus the cost of the pump. So labor is cheap I was just looking for a ball park number so I would know what power rating of the internals for the top and bottom ends to purchase.
What brand of rotating assembly would you buy?
05-30-2007, 01:05 PM #9
i went with a callies dragon slayer crank and compstar 6 inch rods. i would have liked to go with a 5.85 rod BUT i got the 6 inchers. along with custom nitrous pistons
05-30-2007, 09:37 PM #10
With boost, run the shortest rod you can, keep the ringlands as thick as possible on the pistons. I recommend JE for pistons. Lunati makes good rods, as does Oliver, Manley, etc. Callies is a good crank.
As for project cost... Take your best estimate, add at least 50% to that number, and you're getting close.
06-10-2007, 06:02 PM #11
Can the stock computer handle the tune for this project or am I going to have to go with an aftermarket EFI like a FAST setup?
06-10-2007, 06:19 PM #12
06-12-2007, 10:47 AM #13
- Join Date
- Jul 2005
- Mile High
- Bad Ass 67 Camaro / 2010
I have seen a lot of people mod the LT1's to 383 and they have great power.
You should easily be in the 450 range with all the work.
And I have never heard of the problem with the reverse flow. You may want to reserach it a little, who knows, it might be true from the internet.
good luck, take a lot of pics to track the work, and the end result.
Keep all of your reciepts and notes!!
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