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LS2 402ci, but what heads? (LS6, or ETP?)

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Old 09-11-2007, 03:00 PM
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You'd just want to make sure hte pistons were made for nitrous, and I'm guessing a 150 hit would send the car deep into the 10's without a problem.
Old 09-11-2007, 05:42 PM
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Originally Posted by Gordon0652
What would i have to change on that 402 so that it wont fail under nitrous, also will i still be running the 110 octain. And finaly, how much nitrous are we talking about, about what shot size?

a simple plate kit is all you need
Old 09-11-2007, 05:49 PM
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Yes, a simple plate kit, 100 maybe a 125 hit and with a motor like mine, even with a 3700 lb car I think you could run well into the 10's My car at 3580 ran 10.8 with 445 rw, with a 125 hit that would put a car with similar power on motor to about 575, and I am sure that will go into the 10's even at full weight.
Old 09-11-2007, 05:58 PM
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ok, for the nitrous set up, what needs to be changed with the engine? The one thing that i want to stick with is the company diamond, for pistons. What else needs to be changed? Also should i stay with the 110 octain gas?

I am about to go all out and just get that 427 built, and thats all motor with 845hp on race gas.

Last edited by Gordon0652; 09-11-2007 at 06:04 PM.
Old 09-11-2007, 06:00 PM
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Originally Posted by DROPTOPLS1
He is running the Rossler 4L60E trans. How is it staying togather at almost 550rwhp?
Old 09-11-2007, 06:13 PM
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why you did not think of TFS heads they have a great flow rate
Old 09-11-2007, 07:22 PM
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Originally Posted by Gordon0652
He is running the Rossler 4L60E trans. How is it staying togather at almost 550rwhp?


I wouldn't trust a 4l60 at the level you are looking at going to. I don't care if one guy's getting one to stay together, for every guy that has one that stays together, there is 1000 guys that don't.

Trust me, once you are at the 450+ rwhp, the 4l60 isn't gonna be reilable.
Old 09-11-2007, 09:20 PM
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578hp LS1, 375ci, PUMP GAS!, stock ported LS1 heads, Camshaft duration @0.050: 252/264 by Comp Cams, Lift: Intake .680 Exhaust .660 Lobe separation: 114, FAST intake, TH350, and thats all on pump gas!

http://www.samracing.com/98chevycamaroz28.html
Old 09-12-2007, 05:02 AM
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Anything is possible, but if you read that it's a solid roller sleeved stock block, so it's probably a 4.125 bore on a short stroke, and I'm guessing it spins 8500 rpm or so. 4.30 highway friendly gear and a th350... that's not what most would consider highway friendly that's for sure.

Gordon you need to come see my car and get a good idea what you are getting into, that way you can make a better decision.

Not sure how far you are from lebannon valley, but I am going to go to a rental day on teh 21st of this month, you may want to swing out to teh track that day, see what you are in for.
Old 09-12-2007, 10:53 PM
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Alright, did some more research. I called 3 builders, and explained everything to them, then i said nitrous, and two of the three builders said nitrous isnt the way to go because there are so many things that can go wrong, and needs to frequently tunned, and also they said "if something small goes wrong, that small thing turns into something mojor." So the said FI is the way to go. I called W2W, eastside, and a nother one in upstate NY, the all said FI is a way to go.
So i looked in to two turbo kits LS1turbo.com.au, and APS turbos. Both kits are twin turbo, and they can make massive power with pump gas, but i think i will stick to the race 110. This will change my set up a lot all three said, i should be now looking at the LQ9 block with some average heads, even the Dart heads will do. We never talked about super charging, only turbos. So i am guessing i have to head over to the FI threads...

Heres the unfortunate part... This triples my cost of my engine, but on the other hand i could make stupid power. And i have to drop more money into strengthening the body...

Last edited by Gordon0652; 09-12-2007 at 11:01 PM.
Old 09-13-2007, 04:35 AM
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Going FI will triple the cost of the job easily. One thign they forgot to tell you is that an FI car is going to need frequest tune checks as well, if you have an injector go bad, fuel pump go bad, etc. etc. it's gonna be an ugly situation as well.

Regardless what you decide to do, you will need to amke some serious upgrades to the chassis, I'd start with that stuff and keep researching the route to the power. You may find something else that will get you to where you want to be along the way.
Old 09-16-2007, 07:09 PM
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Originally Posted by JL ws-6
You'd just want to make sure hte pistons were made for nitrous, and I'm guessing a 150 hit would send the car deep into the 10's without a problem.

a 150 shot on a 402 should run into the mid to high 9's with no problems



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