Well got to drive my car with the 4.11 and the sns3. Much better manners, no where near as jerky in parking lots and slow speed stuff.

 

That's awesome it made such a difference.. maybe I should shoot to run 3.73 to help my set up.. I have the mild version also so hopefully I'll have a touch better driveability to begin with.. now you just need to hit the track! I bet it will put down some good times!

 

What's the difference in the mild version vs the regular one? I'm guessing not much lol?

 

Standard Lobes: 235/243 | .630"/.610" | LSA111+2
Milder Lobes: 234/242 | .61x"/.61x" | LSA111+2

Mostly intake lift.. pretty sure my cam card says .612/.612.. a touch smaller on duration but nothing too crazy

 

Yeah I suspected not much difference lol. Either one is gonna be a pretty rowdy cam with your setup and exhaust. My cam is very close in specs to this one, and my Magnaflow bullet muffler is very similar to your LM2 bullet muffler. Lets just say that I think you'll be happy with the sound at bare minimum

 

Just noticed you said .10 mil.. that makes me think I should give it a shot to bump compression a touch.. any idea what your final compression ratio was? Those valves are larger too right? Tick thought that should be safe..just gotta decide whether it's worth the gains or not...

 

Still searching on this.. found that every .006-.007 mill is worth 1 cc roughly? Now trying to figure .010.. sounds like it's roughly 3-4% gains to go from stock 10.1:1 to 11.1:1.. just trusting search at this point.. so my guess is I'd be around 10.4 or 10.5 to 1 on compression milling .010? Maybe worth 1-2% gains if I mil my heads? So assuming I can achieve 400 rwhp I'd gain 4-8 HP for milling .010? Maybe I'm way off lol but just using rough math from what I found in search.. almost seems safer to not mil at all with such minimal gains risking PTV issues..maybe it would help driveability a touch thoigh? any input is appreciated..

 

No thoughts on the rough math on my compression milled at .010? Either my rough math is way off or maybe it's just hard to determine? I was hoping some of you experts would chime in on this one.. I'm still trying to understand this aspect of the build..

 

Be careful buying this cam. It is made by COMP Cams and they got a bad batch of cams out there right now. I just had the same cam installed last week with milder lobes. It put down 390hp and 367tq the only bad part is now I got the famous COMP Cam whine above 2,000 rpm's that sound like a turbo or supercharger. This is from the lobes not being polished enough. So right now I am in the process of dealing with COMP Cams on how to get this issue resolved.


Look it up on Youtube and other sources for the COMP Cam whine.

 

Wow that's not promising at all.. I wonder what they are doing to fix it or if there is a way to tell before install? I will have to look into this before I get too far with the install.. I appreciate the heads up

 

Yeah this might throw a wrench in things lol

 

I emailed the seller to see if I could get some information so hopefully he would be honest if he knew.. here I am trying to figure out what to do with heads and compression for this set up then that pops up lol..

 

i've got the sns3 with stock 243's but i'm using a .040 gasket, the cars on a frost tune and stock gears and i get bucking pretty much anytime under 2k but its still pretty easy to drive, 6'th gear is pretty much useless unless you're doing 80+mph because of the bucking also, that being said i drove it everyday for the last 3 weeks without any issues (i just run it a gear lower to get the rpms higher) and i absolutly love it. It turns lots of heads that's for sure, no numbers yet but it pulls like a freight train compared to stock

 

That's awesome to hear it doesn't seem like it drives you nuts.. it should be a little better with my auto too I'd think.. seems like anyone that has it says they love it and that the power is crazy..it's impressive frost was able to dial that in enough in a mail order to get decent driveability.. I am working with comp now through email to see if I had a bad batch whining cam.. the previous owner said he never heard anything remotely close to it, but hope comp can give me that extra assurance.. I'm getting real pumped for the install..

As far as milling...Instead of worrying about the milling .010 I'll probably get them lightly milled to make sure they are flat and just use gaskets to add compression if I have room to spare.. tick says .010 would be fine but can't get a lot of input from others on here.. not having luck with search either..

 

If your running stock size valves, mill .010. I have larger valves and still milled .010.
Just install the head with some clay on a valve and rotate motor by hand to ensure no contact.

 

That's good info! Do you know how much clearance you ended up with? Do you have any idea of what that would bump the compression to? 10.5 maybe?

 

Clearance on exhaust valve was like 80 thousandths.
Not sure on compression, car is an animal tho.

 

Thanks for the info! I'll just take the advice and roll with it.. I'll get them milled .010 and double check on install

 

I think this all depends what is still on the shelf....Tick has switched to Cammotion within the last few months. My SNS2(ls2) came directly from Cam-Motion....I've got about 4k on my SNS2 (LS2) in my '98 (stock '99 heads on it) and I drive the car almost every day. No bucking, surging, or any of that...and it pulls all the way (and would do more I'm sure) to 6600. No dyno #'s as I'm just street tuned with HPT and a wideband, but Driveability and a good mix of getting it done is my priority, rather than peak numbers. Driveability is also tolerance....my old '99 had a wicked nitrous cam and a spool....that was DD'able for me at the time....now almost 10 years later I prefer something more drivable. Amd for what it is worth I debated SNS2 or 3....ended up with the LS2 SNS2....which they can/will grind to work with a stock LS1 cam pickup.

Jon

 

Thanks for adding that info.. sounds like the SNS 2 Is pretty much a guarantee for driveability with great power.. that's my choice in my head but being I got the deal on a sns 3 I'm thinking I may give it a shot.. I think either cam paired with the AI 226cc 243 heads is a recipe for 450 rwhp and good track numbers.. I just have to hope it's tolerable, which it should be with a 4000 stall... but only time will tell