PFCeaton

I'm wanting to do a budget build on a 4th gen lsx. I need to know how to get the most bang for my buck on a budget. I want to make 500-600 whp. I'm a newb to the lsx's. Ive done tons of research but cant make a definitive decision.

I want to make this power for a decent price, but also wanna keep my motor. I wanna go FI, but should i do a swap, or is 500-600 whp within 7000 rpm's safe on an aluminum block? Could i save money going iron block with a 5.3 lm7 bored and stroked to a 5.7 w/FI what?!

HCI2000SS

iTrader: (2)

With the stock LS1 internals I would definitely keep in under 600 rwhp...more like 500-550 if you want to be really safe. With that said probably just doing a blower would be your best bet, or maybe a cam and spray

BlueBird346

iTrader: (13)

The only way to do it "on a budget" is with nitrous. Even then it will be expensive but not as bad as with a supercharger or turbo.

WS6ICK2k

Check out the forced induction section. Plenty of 5.3s making that much power on forced induction, I would look into a forged short block personally for longevity. Depends on your budget I would go with a 370 LQ based engine for a solid foundation. There is no need for crazy strokers when going FI. Theres plenty of forged 347s with pro chargers making 700+ at the wheels.

I have heard great things about TMS short blocks. One guys engine blew and they replaced free of charge.

http://www.thompsonmotorsports.net/p...products_id=15

Budget and FI doesn't mix also so have a fat wallet. Basically plan out what you think you will spend and times it by 2. Or just use giggle gas as stated above. Also a lot of people shoot for close to a 9.5 to 1 compression for FI.

HCI2000SS

iTrader: (2)

This is the exact motor i'm running. Yes TMS is awesome!

PFCeaton

Well i mean i'd be using deployment money. My budget will be 10000-15000. Ive done tons of research on parts and stuff. I looked at the forged short blocks on texas speed. But for alot of FI power, iron blocks are best. But ive seen a few threads on here about FI and the ls1's can do it, but idk. Id like to run a good $150 shot w/ about 8-10 lbs of boost. A forged lq4 short block would be smart. If i do iron, i want a bit more power due to weight trade off. Id want it to be a DD, if it had to be. So overall dependable and longevity are a must.

I just need overall clarification i suppose lol

HCI2000SS

iTrader: (2)

Dude for 10-15k you can do a lot lol! Get yourself a good LQ9 or LQ4, forged internals, a good amount of boost, and you will easily surpass your 600 whp goal...and all for well under the amount you have saved

BlueBird346

iTrader: (13)

Iron blocks are stronger. But that doesn't mean an aluminum block can't do it. I've seen plenty of aluminum engines with 4 digit hp figures. Iron blocks are easier on the wallet though.

PFCeaton

I wanna use an iron block (lq4) because the lq9's dont hand handle 243's cuz the valve sheoud. I thought about prc247 or 243 heads cnc'd. Get them ported. Run forged wiseco pistons. 1.7 rockers. Forged rings. 9.5:1 compression then throw boost