It won't be bad at all for trips, etc. I wouldn't hesitate at all to put it in and drive it if I were you. Stalling won't be a problem if your tuner is good. We trailer ours to the track and are trying to make a True Street car that went 10s NA and 9s on nitrous but we also drive it. Lately we've just been driving around town so a lot of lights and anything from 35mph to 55mph. Lower RPM is where the surging occurs but I guess that's a necessary evil with a cam that big. Later this month we're going to throw our street tires on and make a 600+ mile trip with our local Corvette club. I'm not worried about it all and other the B&B Bullets being obnoxiously loud and droning all over the place I know the cam will be fine.







Scott

 

Hell yea.. thanks for the info and pictures. Sounds like a mean set up even though it may be border line it sounds like it's worth it. The numbers you put down are insane for an ls6 and 241 heads.. I'd be happy to hit that.. I have an slp loudmouth 2 and it's already loud.. I wonder if I'm going to want to quiet it down or not..

How high are you revving it or what have you been shifting at? Sound like it pulls til around 65-6800 from what I've seen.. I like the lower rpm's don't want to push the stock bottom end too hard

 

Our rev limiter is still at 6900 and we shift around 6500. Yes, it will pull to 6800. I wouldn't be afraid of the SBE. We sprayed 150 without our NANO and made 565 to the wheels. When it cools down and I can turn my NANO back on I'm sure it will do 600.

 

That's good to hear..I have been listening to videos of the sns 3 and it sounds bad ***.. I'm pretty pumped to install it..

This will be my first head and cam I've done on my own since my first one a friend got it into his dealership under lifter warranty and slapped everything on for free since it was apart anyway..lol. I will have a lot to learn and get done.. installing a racetronix pump also to make sure the fuel system keeps up.. should be a blast! Lol

Hopefully more will chime in if they are running a similar set up to see what kind of power people are seeing and what heads they are running.. hopefully this will be a good informational thread for others looking at the sns3

 

Just a side note, but I bet that cam will sound pretty badass with your exhaust and LM2 muffler. My cam is a tad bigger than the SNS 3, and my Magnaflow 14419 bullet muffler is very similar to the LM 2. It has a pretty deep tone that screams at WOT

 

I hope it sounds bad ***.. did you happen to have a lm2 before the magnaflow? I was debating switching to that if it had a deeper tone and less rasp/drone. Everything came today so I'm itching to get it done now. Should be a good winter project

 

Actually I had the LM1 before, and while it sounded like a drag car at idle and WOT lol, it had horrible rasp and had no tone.

When I switched to The Magnaflow I also added a FM merge to my Pacesetter ORY. The two combined killed almost all the rasp.

Congrats on all the parts coming in today. I know that feeling of anticipation lol. When we meet you can get an idea of how my car sounds, and see if that helps you in a direction or not

 

Yea for sure! That would help me out a lot.. I'll have to look into that FM merge.. keep hearing about it but not sure what the purpose is.. any gains from it or mostly for sound? I'll research it a little in case my car sounds ridiculous with a cam in and I want to tone it down

 

You would need to mill the heads around .015" - .020" to acheive the 11.0:1. Just make sure you maintain the stock valve sizing which will help with shrouding on the small bore.

I built my T/A with the BTR stage 3 and TFS 205 heads, they were at 58cc which commanded 11.5:1 with the stock LS6 intake and TB thee car made 440/410. It felt sluggish through the entire rpm range, swapped to a fast 92 and it woke up. The drivability improved 100%, only bucking was around 1100 - 1200 rpm. Keep in mind this was a 6 speed with 3:42's

The car made 454/421 earlier this week with a SD tune on a different dyno across the country in AZ.

I began building an A6 C6 LS2 corvette about 3 months ago, The car has 1 3/4 headers, Fast 102, and a Yank ss3600. This car made 400/400 on the same dyno as the T/A when it made 440. Pulling my hair out now trying to get the tranny shifting to my liking.

Best of luck

 

Well a good merge is only going to really help if the existing one you have is not so good. With that said you'll definitely gain a few hp and the flow will be better since the exhaust will come together in a way that creates a smoother transition. Make sense?

 

Sounds like I'd have to flycut at that point.. tick said I could probably mill a little but not enough to hit 11.. I am debating whether to spend the $1000-1300 on the heads or just get a fast 92, keep stock heads and not deal with the PTV issues.. not sure if that would be the best route though..

I'm surprised yours felt sluggish at 440 lol those are awesome numbers.. maybe it just needed more flow to supply the cam?

Any reason the added compression helps with the driveability? Is it a night and day difference?

 

Ohh I see.. my SE headers came with a merge in them.. I wasn't sure if you were referring to something different or not. Definitely makes sense though

 

Right but most ORY pipes do come with some type of merge for the most part. What I'm saying is that if the existing one is crappy then you will benefit from a good one. Also worth mentioning is the diameter difference with the FM merge. Mine is a 3" in 4" out. That's gonna help as well

 

As intake duration increases, the intake closing point occurs much later. The engine cannot begin to compress the intake charge until the intake valve is closed. This equates to less timing requirements which help with low speed/throttle cruising.

My suggestion is to step back to a stage 2 camshaft in the 220's I / 230's E, which will allow for stockish compression and alleviate the PTV clearance concerns.

The combination will make around 10 less peak HP but the overall driveability will be better.

For example the corvette pictured above has a small 223/231 with stock 243's for the moment and has been a best of 6.98 @ 97mph, drivability is fantastic

 

That option is still crossing my mind.. I bought this cam knowing that I may just sell it and go with a stage 2.. especially if driveability is much better, but also wouldn't mind trying out a larger cam.. decisions decisions lol..

I appreciate the recommendation and it does make sense and would allow peace of mind on the PTV and driveability concerns..

 

Don't over think it, get the bigger cam �

 

I have the SNS3 with 243 heads from Lloyd Elliott milled .010, 2.02 intake, and 1.60 exhaust valve. Its very tight on valve clearance. Less than .080. Also have Fast 102, pacesetters, 6 speed, and now 4.11.
With the 3.42 it bucked pretty bad at lower speed, tap the gas or clutch and it would stop the bucking.
My tune is no where near perfect as a vacuum leak arose during tuning.
The car with the 3.42 was a complete monster. Pulls crazy hard up to 68-6900 when I shift.
Also running an exhaust cutout that will get you compliments from everyone including most local law enforcement😂

 

Yea that sounds pretty close for PTV but I'm sure it helped bump the compression a little for sure. Any idea of your dyno numbers or trap speeds with that set up? Your set up would be my exact max effort build it funding was available but as an auto.. I've heard the 6 speeds get a ton more driveability down low so maybe I wouldn't get as much bucking?

I'm sure I'll be pissing off my whole neighborhood and everyone I drive by lol.. I appreciate the info

 

No track times or dyno session yet.
Still breaking in a new clutch and finishing install of the rear axle. I had a vacuum issue come up while tuning so the tune isn't even close to perfect. It's mediocre. Everyone that rides in the car agrees it's scary fast. My setup seems to work great and can't wait to finish it up and put some spray to it.
Previously car put down 345 and 360 with exhaust, tune.

 

After talking with tick they are saying I should be able to mil around .010 safely and if I have any room left I could run a thinner gasket.. what kind of bump in compression would that be and what kind of gains would I see? Would I be better leaving stock and just running a thinner gasket to add compression? I'm new to all this, so any info would be greatly appreciated