farmington

Even without a cam a C6 is better with a torque converter.

veneno

bullshit I have stock converter and did texas speed ported/cnc heads and mild cam
it pulls so much harder now very happy with how the car pulls and I am familiar with high stalls
had a vig 3600 in my old c5

farmington

Richard

KW Baraka

Why? Because he disagrees with you?

Seriously....what makes you think what you believe is best, is actually what's best for everyone or anyone else?

KW

veneno

what have you done besides the diablo tune? lol
too bad u aint local you if you think your turd with just a stall can keep up with a heads/cam ls3

mikeCsix

I use the car on road courses where heat is already a big factor do I'm not anxious to go much beyond stock for a torque converter. I jus try don't know where the limits are.

KW Baraka

Stock TC and Stock gears.......this might not be the right cam for road racing.

But as I've stated before, I don't drive/race a 'vette....so consider the source.

KW

sallen619

Would the Spinmonster cam fit into an LS2 with LS3 heads without fly cutting?

old motorhead

I believe the fly cutting comes in when you mill the heads to maintain the LS2's 10.9:1 SCR. LS3 heads have bigger combustion chambers vs the LS2 heads. Kind of defeats the purpose if you do an LS3 head swap without milling the heads to maintain or increase your SCR. Lots of good catty port LS2 heads out there that don't necessitate flycutting.

HorsePower Junkie

Spinmonster has been extremely helpful and very kind to me over the years. Great info on his cam.

Dvaughn21

Just ordered this cam from TSP as a custom spec. The sales guy tried telling me several times it wasn't a good cam for an LS3 and wouldn't make good power. I'm satisfied with the results I have read on here and seen on YouTube so I will be going with it, hoping to make 490+ with headers. Maybe port and mill heads next year. Will post results once it is installed.

Turbo6TA

If you like the HP potential and the road manners of the Spinmonster cam, but want something a little easier on valve train components (don't have to check your valve springs every 25K miles) ... You can contact Cam Motion and give them the specs of the Spinmonster cam and tell them to grind you a cam with the same specs, but decrease the lift on both the intake and exhaust lobes to .585"

With a lift of .585" you can use the Cam Motion LS Premium .625” Max Lift Beehive springs and your valve springs should never need changing in the future.

I doubt you will give up but a couple of HP over what the Spinmonster cam makes with it's higher valve lift, but you will have a valve train that you don't have to worry about in the future.
____________________________________

For any of you folks that may not know, here are the specs of your stock LS3 cam as supplied from GM:

Dur: . 204°/ 211°

Lift: . .551” / .525”

LSA: . 117°

ICL: . 120°

Overlap: . -26.5°

old motorhead

Do it all now. If you can't afford to do it all now, save up for when you can. Don't duplicate labor, effort, time and $'s down the road. If you know you're going to want more upgrades, it doesn't make sense to do a little now and a little later. Every time you add more, you have to tune for it...and pay for it. When you have the exhaust off and the valve train broken down, doing cylinder heads isn't that big of a deal. I did it all at once. Cam, cylinder heads (ported and milled), headers, ported intake manifold, u/d crank pulley, and even handling upgrades. Do it once and do it right. I did it that way and couldn't be happier with the results.

Dvaughn21

Odds are I won't end up touching the heads. I'm doing the cam, headers, and 10% u/d now and that will likely be all I do.
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Jason Davenport

I have an ls2 with headers cai and off road x. I am contemplating supercharging next and was staying away from cam due to not wanting to have to change springs every 25k. After reading post about reducing lift on spin monster cam and using mentioned springs and how spring life will not be lost I might add a cam in the mean time. I want car to remain reliable and not lose reliability. Will this cam work with a supercharger if I add one later? How is fuel mileage affected? Thanks for any input. How much hp would I gain? I have ls2 m6 with 17/8 headers, vararam cai and zo6 atak exhaust.

old motorhead

While Spin''s cam is not a big one by any stretch, it's bigger than it needs to be for use with a supercharger. The beauty of f/i is that you can use a negative overlap cam, get near perfect manners, and get stock like fuel eco (when you can keep your rt foot out of it). You don't need 230 degrees of intake duration if you have a supercharger cramming the air into the cylinders.

Low 220's on the intake with mid to upper 230's on the exhaust with an LSA around a 116 for a centrifugal blower. Same cam on a 118lsa for a p/d blower. Something like that will drive nice, get stock like fuel eco on the highway, and is big enough to make whatever power (choose your boost level) you can stand.

Turbo6TA

Exactly .... and a higher LSA (for boosted applications) will mean a more civilized idle, better road manners and more idle vacuum.

Good reason the OEM LS9 cam in the supercharged C6 / ZR1 has an LSA of 122 degrees

.

SpinMonster

Depends on what the boost is from. If it's turbo's yes, there are better choices. I used this cam with a 2200 paxton head unit and made 822/738rw on 91 octane at 6800 feet altitude.

A 211/230 122 lsa is not a better cam choice and will not make as much power on a centri. A roots type blower will benefit from less cylinder pressure near the Tq peak but you simply run less timing. I had a LS7 cam which is the same specs but on a 118lsa. It was nothing like the midband Tq from a 230/234. The LS7 and LS9 had emissions and economy reasons to be used in a stock car that had to be sold in smog areas. It had nothing to do with performance optimization

old motorhead

Good to see you back. This place is better when you're around.

Blitzy

Bumping this from the dead because I finally got a decent video of the cam/exhaust setup.

https://www.youtube.com/watch?v=6EHt...ature=youtu.be

Car is an absolute blast and has given me no issues whatsoever (knock on wood). You have to really try to make this cam buck/surge. 1000 RPM partial throttle is like stock. The lady and I drove it 3500 miles in a week from Chicago to Yellowstone and back, including up to 11,000 feet on the Beartooth Pass. I should really make a post about that trip alone. Car averaged 22 mpg on that trip and we crossed most of South Dakota with the cruise control at 100.


I have done a few trackdays also and it absolutely rips at high RPM. I've had people come up to me after a session to tell me I'm the loudest guy out there.


Thanks again for the perfect cam recommendation SpinMonster!