2000ls1tranz

iTrader: (1)

I'm going to start a winter project...goal bumper draging 1000+ hp car trying to maybe shoot for 8s what combo would do this..was thinking lsx 454 block w/ 76mm turbo single ..open to advice

kelsey_canard

iTrader: (6)

The majority of people will say that you will want more than a 76mm turbo. Depends on what you want out of your setup. Need more info on what you want.

crazyelf

iTrader: (21)

For 1000hp you will definitely need more than a 76mm

2000ls1tranz

iTrader: (1)

I want something that spools up quick an puts out tons of power

offaxis

iTrader: (19)

You can do it with a 370 with twin turbo for faster spool no problem

2000ls1tranz

iTrader: (1)

what block is that ls2? what size of twins would it take for 1000-1200 hp

T76s10

iTrader: (6)

ls2 or lq4/9. iron blocks are cheaper and easier to find and stronger. i wouldnt say you "need" more than a 76mm. the billet wheel borg turbos are making some pretty good power with the smaller compressor housings. **** stock48 ran 8.39 with the s476r, 92mm turbine, t4 housing at 3300 lbs. thats over 1000whp right there and spools really quick.

HexenLord

First turbo setup I take it? You have any experience with an 8 second car? Judging by your posts this is your first attempt at a drag car

2000ls1tranz

iTrader: (1)

Yup first time doing turbo setup..I have ordered twins kit an am now doing a LSX 427 figured **** it go big or go home right lol..

ScottyBG

The 427 will have no advantage at all over a 370 or 376 at the power levels you are talking about. Probably not the best choice. Not the best choice for a 1st turbo build either. If you haven't bought anything yet, I would urge you to reconsider, just trying to save you some money. Take T76s10's advice and go find yourself a factory iron block, lq4 or 9 and start there, put some forged internals in it,that will be adequate for what your looking for. Plan on spending about $2K on your fuel system as well to get that much fuel to the engine, new lines, rails injectors, pumps etc. A 1000rwhp car is a beast and you will need all your pennies to keep it together. You will break thinks like transmissions, driveshafts, rear ends etc. You will need to spend lots of money on sticky, expensive tires too, as you will burn 'em up fast, if your racing the car regularly. This stuff happens at these power levels. There are a lot of people who don't understand the costs here until you own one.

lmt0705

iTrader: (7)

There's something to be said for doing it right the first time too. If he does an lsx with good internals he will be good for many years not having to worry about his motor. Twin 62s will get you over 1k. I made 1200 wheel on twin 67s and didn't even crank them up all the way. Really depends on your budget. Now a days I like to get the best parts I can. Hate my car being broke

JakeFusion

iTrader: (7)

Depends on what you want to do? Run A/C? Willing to custom fab? Etc. Right now, the best setup for somebody who has a moderate budget, wants to run A/C, who doesn't want to fab up a bunch of stuff, and who can run a forged 6L block (the 370) is the Huron A/C T4 kit with a custom billet 80mm BW T400 with 96mm and 1.25 A/R housing.

1000rwhp is pretty easy with a big turbo. Even with the T4 housing. I wouldn't go with a 427... that pretty much means you have to go twins or a really large T6 turbo with enough A/R so backpressure doesn't kill you. And then you have to fab up things to get A/C to work and move the radiator up, etc.

Remember, a stock LS1 is going to be bigger than what a lot of turbos are designed for in terms of backpressure. And they will spool plenty fast. We aren't 4-bangers with 2L motors trying to spin an 80mm Turbo... we have nearly 6L trying not to nuke the turbine. So an 80mm Turbo spins up quick as hell and can make 1000rwhp on pump gas with a 6L with the proper fuel system, intercooler, turbo cam, and ported heads worked over to work with 18+psi of boost.

With E85, you don't even have to worry as much about the heads/cam. You just need a lot more fuel... but it's safer to run than 93. But 93+straight meth injection will work very well too.

mightyquickz28

iTrader: (8)

Well said... I've been hot rodding for a long time. I had a turbo car in 1986 and it made me a believer. In 2008, as I tore down my 383 solid roller motor (N/A) LT1, I decided to re-explore a Turbo application. I had a good foundation with the 383 and briefly thought to keep that, but seeing all manner of 4 cylinder cars (EVO, STI/WRX, Turbo Neons) getting up to 800whp and above, I realized, "with the right turbo, cam, ,tune,...I don't need big cubes and the attendant big expense!", so I went with an all forged 355 and a Turbonetics 76mm. Fantastic combo for the daily driver street strip car. With my AEM Truboost, I set it to 15 psi most of the time but for a week or two, kept it at 21psi. I never took it to the track at that setting since my 315 Nitto DR's couldn't even hook up at the track at 15psi, but rolling charges on the freeways at 21 psi provided liter sportbike like accelerations and giggling like a schoolgirl.

So, Original Poster, like he says, If you haven't yet purchased the 454, if you're after big power and not wasteful spending, get a good stock iron block of any denomination (case after case of stock block 4.8's and 5.3's getting 900whp and above with the right cams/turbos), get your twins on it, a great cam, a great tune and, with fuel system commensurate, you'll have a winner.

lmt0705

iTrader: (7)

You don't want to bore a block that much on a turbo motor either, wall thickness is important in a boosted application. I personally am not a fan of strokers either due to the excessive wear on the piston skirts

2000ls1tranz

iTrader: (1)

I was told big cubes will help spool I want a block that's a solid foundation I see 427 that people have already built an they are badass. I know I will need support mods I'm getting a 4l80e built for 2000 HP upgraded fuel system 160 lb injectors got a fab 9 in puting a upgraded center in an a carbon fiber driveshaft.im not looking for 900 HP I want 1200-1400 on pump gas an 1500+ on race gas lsx 6 bolt Callie's billet crank wesico boostline rods wesico pistons wrist pin upgrade ARP main studs 1/2 head studs lsx ls7 heads

lmt0705

iTrader: (7)

I'm in the process of upgrading my rotating assembly too, Callies ultra billet crank is 3-5 month backorder��