MackMurder

I need help please picking a custom grind for this setup below going in a
2012 denali 1500 6.2l with VVT, 3.43 gears, AWD
Custom/prebuilt whatever you think best?

-TSP Brawler Heads LS3 style CNC ported 257cc intake port 68cc combustion
​-TSP Pac .660 lift dual springs retainers etc..., stainless steel valves (can do pac 1219 beehive if needed)
-Speed Engineering 1" 7/8 LT headers, 3" collectors, Y pipe, 3.5" exit, catless, corsa sport
-Circle d 6l80 tripple disk 2600 stall TC (if needed)
-upgraded Trans cooler
-che trunions, morel 7717 lifters, chromoly 11/32 pushrods,
-timing chain, dampener etc...

I dont need the cam to be very choppy it dont matter to me one way or the other what it sounds like. Just want all the horse/tq I can squeeze. Im keeping the VVT for that extra 10 to 20 horse/tq accross the whole power band.
I Drive WOT alot, off the line, on the highway (truck is tuned already) sometimes to 120mph but mostly around 80mph or so.

I dont want to lose any torque and just want to gain as much as possible everywhere.
These are the cams i was looking at from comp cams and texas speed that have VVT but i wanted one custom ground for my specific application
Was thinking in this range somewhere like .550 to .600 for lift.

COMP CAMS STAGE 1 vvt
210/224, .556/.568 114 LSA 105 ICL
(1500-6600rpm)

TEXAS STAGE 1 vvt
216/229, .600/.600, 114 LSA 107 ICL
(1200-6000rpm 50+horse) no stall

COMP CAMS STAGE 2 vvt
214/228, .559/.571 114 LSA 107 ICL
(1700, 6800rpm)

TEXAS STAGE 2 vvt
220/232, .600/.600, 113 LSA 107 ICL
(1600-6300rpm 50-55+horse 2800stall)

I know theres more to a cam card than this entry level marketing stuff but this is all i basically know at this point🤷‍♂️

Any ideas?
Thanks


@Fast355
@Summitracing
Ive read a bunch of your posts and would love your input whenever you have time no rush

IGN-1A

HI, your "spec" cams are similar.
I like the 224/232 .580"/.560" on a 118 C/L Crower Cams for the manufacture.
The VVT NEEDS MORE PTV distance OR a Wider C/L.
The VVT, when advanced, will increase engine Torque at low RPM.
Lance

Abs

why the limited lift? Summit has an ls3 style pro ls cam with .625 lift on intake and .605 on exhaust. That's a good lower budget cam.

If you were willing to spend a bit more, the best performing ls3 cams are made by Rick crawford. They have higher lift but flat out rock

https://g8only.com/?product=rcr-nacams

IGN-1A

Hi ABS, thanks for the info, I did not know that Rick Crawford owned/operated a cam grinding machine.

Abs

he doesn't physically grind them but they are his lobes. They were ground by lunati until about a year ago. Lunati was purchased by comp and he said their customer service is sub par, so now he has his cams ground by cam motion. But they aren't the standard conservative cam motion lobes. They are his proprietary lobes that result is great track times in the ls3 world.

MackMurder

Thanks for the reply. I will look into the crower cam.
I had sent cam motion a CUSTOM GRIND request and input all my vehicles details and what i wanted to achieve and all they did was suggest one of their off the shelf grinds. Is this common practice for cam motion? I was always told their custom grinds were the best....... Im sure its a fine cam but its not specifically tailored to everything I asked for it doesnt seem, I could of picked an off the shelf cam myself. I dunno im a little dissapointed. Doesnt mention if its VVT or not. I mean im putting in .660 dual pac springs and upgrading all my internals including lifters and pushrods and valves etc... so I feel like higher lift would give me another 10+ponies no? I dont want the cam to drive uphills with midrange power but more off the line starts and highway driving when im WOT and my truck is shifting between 4200rpms to 5900rpms.
obviously I would like power accross the whole range it just seems like with the lower lift im leaving power on the table. Am I incorrect?
thanks

TITAN 2 LS TRUCK CAMSHAFT
Grind # XA212/325-XA220/325-12+4
High Performance & Off-Road
Duration at .050: 212/220
112 Lobe Center Angle with a 108 Intake Centerline
Lift with 1.7 Rocker Arm Ratio: .553"/.553"
Recommended Displacement: 4.8-6.2 Liter Engines
Cylinder Heads: Cathedral or Rectangle Port
Recommended Compression Ratio: 9.4-10.5:1
Recommended Headers: OEM Exhaust Manifolds, 1 5/8" or 1 3/4" headers
Recommended Stall Converter: Stock - 2500
Recommended Rear Axle Ratio: Stock

MackMurder

I just figured a more conservative lift like .570 to .600 ballpark would be ok for my application and easier on the valvetrain. Trying to find the happy medium between power and longetivty and the VVT cams are a little harder to come by, I would of went with a summit stage 4 or something when holdner gets over 100 hp increase with one of the non VVT cams but i would like to keep VVT

Abs

https://cammotion.com/ls-camshafts/h...227-237-111-4/

MackMurder

Great gains on that one..but requires 3.73 gears and i got 3.42

Was thinking this guy 71 hp 31 tq
https://cammotion.com/recently-resto...222-232-108-3/
Good for 3.42 gears and says a 2800 to 3600 stall, think I could get away with a 2600 triple disk from circle D?

ssanto

Give Nick Evdos at Brian Tooley Racing a call... I've designed a number of custom cams for my own street and road racing applications. This time with the LS motor I went with a professional... only cost about $70 more than any other cam and it saved me a ton of trouble. I talked to Nick over the phone and told him what I wanted and what I was expecting... dyon'ed the motor with their cam and it performed exactly as what I was hoping. On top of that, Nick helped me make good choices for the rest of my valvetrain parts for the application.