skyhighsami

iTrader: (8)

Ok, I am putting a LS1 in my Samurai with a TH400 and a NP208 case. The axles are geared 5.38 and I will be running a 36 or 37 inch tire. I am looking for a cam that will bolster the mid to low end power mainly and have a noticeable idle. Now, I have a friend with a Comp 212/218 hi lift (which is less than .570) on a 115 LSA or there is another cam listed on here for sale that is a 227/231 with a low .600 lift on a 112 LSA. I know the larger cam because of the LSA, duration, and lift would chop a good bit more but I am not sure if it will give up too much down low and mid range. What would be a good cam to look at for what I am wanting to do? The Samurai when finished will weigh less than 3200 lbs so even if it was a little soft on top end it would still be strong as ***** because of the weight. Give me some suggestions please about the cam as I am wanting to assemble it pretty quick. One more thing, I have a 241 casting heads I can work and freshen or should I work some 317s and mill them for the desired CR? Is there enough difference to merit getting different heads, and what compression should I look at running stock 10.1 or should I consider bumping it?

00ChevyScott

iTrader: (10)

I would rethink the choppy idle thing. With that much overlap in a setup with large tires and going through mud, I'm not sure I'd wanna have to deal with getting that tuned good enough to take out mudding.

nonnieselman

iTrader: (10)

Yea,, id stay at 114 and higher LSA..
Up your compression and do some researching, a lil higher CR should give you a lil better bottom end. And i think running a Truck Intake Manifold should help with low end TQ.

241s milled should do the trick, or 243s.

I gotta do some more research on the different heads

budhayes3

iTrader: (19)

Choppy idle and low end don't go together...you can get a sorta choppy idle by setting the idle speed low. I vote for the 212/218 if you want low to mid torque, but you're going to barely hear it in a 5.7 if tuned correctly.

trever1t

iTrader: (14)

I would think that you wont have any issues with torque except maybe too much of it in a little samuri.

Mangled03gmc

iTrader: (95)

I think you should keep the lope, bump the comp up, run the stall you said but a tad less on the duration.. In truck that light with the correct gearing low end shouldn't be a prob...

skyhighsami

iTrader: (8)

It isn't a 6.0 it is a 5.7 LS1. The 241 heads have a 1.89 intake valve and the 243 and 317s are 2.0. I spoke with Wildcat Racing in GA about the heads and he said they would work the 241s for 350. That is milling the heads, mild port behind the valves, 3 angle, and matching intake and exhaust. I am leaning more towards the 212/218 but I am putting 10 lbs of poo in a 5 lbs bag so I want to hear a little lope. I don't want a massive hit but want to tell it 1) has a V8 and 2) sounds like it has something more than a stock cookie cutter V8. I have been told it wouldn't fit, wouldn't work, would weigh too much etc. I started the research and a lot of people swap in 4.3s, the LS1 is only 2 inches wider, 3 inches longer, and the LS1 weighs 434 ready to install the 4.3 425 lbs just a long block with intake. So 3 inches can me made by pushing the motor into the firewall, disty clearance wouldn't be an issue, 2 inches extra in width....pull the inner fenders which would yield better tire room anyway. Besides I am tubing the front end, the weight....the LS1 is lighter. So it can fit, and I will prove it. I was told 2 years ago 24s wouldn't fit on a truck lowered 4-6 without a lot of work. I lowered it, and bolted the wheels on, so I accept a challenge. I just want everything to work, and work very well together. So I guess I will run the 212/218, I feel like it should help bolster the mid range better than the stock cam in the LS1

TXsilverado

iTrader: (19)

exactly. i wouldnt want my offroad machine loping too much. it will be more likely to stall going up steep hills and stuff. the stock cam in an LS1 in something as light as a samuri will have GOBS of low end. save your money for other parts IMO.

skyhighsami

iTrader: (8)

Hmmm, the reason I was wanting to swap the cam is every LS1 I have driven starts to pull at 3k or so. Would tuning the ECU be able to get that down a little? That 212/218 has a range from 1700-6700. If I am wrong I was just tossing this around.

skyhighsami

iTrader: (8)

What compression should I look into running? It seems like 10.5 works really well for a nice fat power band and throttle response.