orangenotch

iTrader: (1)

Im new to the whole lsx thing. Too used to sbf's I guess but I put this stock 05 lq4 in my notch. Its been 12.3@111 in 4500ft da with nothing more then longtubes,cai, and a converter. Im looking for more and want to go 11.5 with hopefully nothing more then a cam/injectors/new tune.

I have ls6 springs that I put on while the heads were off when I got the motor. I know their not really rated for much lift but is there anything that might get me where I want? I plan on turbo later and hope to go 10's but I dont know how long that will be to get there.

Any suggestions are appreciated.

s346k

iTrader: (4)

if you have ls6 springs, then you are most likely limited to gm cams. asa, grand am cup cam, or ls6...

i would suggest a better spring rated to handle more lift. this will greatly open up your options for cams. given that the engine is utilizing stock compression and you have a 3200 stall, i'd say something in the 228-232 range duration-wise would be a good choice. many vendors sell cams in that range.

if you're wanting some powa...mill those heads and find a real cam to use with a single plane.

jgos929

Shoulda stuck with a Ford motor and you wouldn't be going so slow.

02*C5

iTrader: (1)

ah moron




I say this save your pennies and do the whole upgrade. Since apparently this is a track car drive ability is not going to be an issue right. An EPS 236/248 or MS4 would be a good starting point for that engine.

garygnu

you can get pac 1518 for $200,or get duals from TSP.you can swap springs with the heads on the motor.get a custom cam .

Isolde

iTrader: (4)

Since those springs are good to 0.570" lift, and since you only have 9.4:1, I'd try a COMP 3713 intake lobe, and a 3715 exhaust lobe. This would result in a 220/224, 564/568, and your choice of lobe sep and advance.

orangenotch

iTrader: (1)

Some of you cant read. Thinks for the options though. The car is fuel injected, why would I go with a single plane intake? Ill stick with the stock truck one for now. And this is a street car, gets driven more then it gets taken to the track.

And for the guy that said stick with a ford motor, LOL, Ive had a few combinations in this car. And the fastest it went was 12.2@113 and would break all the time. Had a forged 306 with full edlebrock top end H/C/I, 5 speed, carb, fully built for a 306 and thats the fastest it would go. But after having to have it rebuilt 3 times in 2 years I was fed up.

Isolde

iTrader: (4)

I'm not sure a 220/224 will get you there. I admit my LSx experience is far short of my SBC experience. But I've been thinking on it, and I'd order that, on a 112+3.

orangenotch

iTrader: (1)

Changing springs is also no problem. Texas speed has some good deals for cam/spring/pushrod packages just dont know which one would work best.