How's this cam spec look for a stock 6.2 running a Trick turbo at 8lbs looking to go to 10-12? I want to keep the valvetrain stock.

SPEC CARD
PART #: 54-000-11 ENGINE: CHEVY LS1
GRINDING INSTRUCTIONS 1
"" "" 2
"" "" 3
GRIND #: LS1 3752R /3752R HR114.0
SPC INST 1:
SPC INST 2:
J. DIAM: STD INT EXH
VALVE ADJUSTMENT HYD HYD
GROSS VALVE LIFT .528 .528
DURATION @ .006
TAPPET LIFT 271 271
VALVE TIMING OPEN CLOSE
@ .050 INT 5- 43
EXH 43 5-
SPECS FOR CAM INST. @ 114.0 CENTERLINE
INT EXH
DURATION @ .050 218.00 218.00
LOBE LIFT .311 .311
LOBE SEPARATION 114.0 FIRING ORDER LS1
ROCKER ARM RATIO 1.70 1.70 REQ SHIP DATE

 

It will work but you would be better off with a little more lift and aftermarket spring. You're going to get into valve control issues when you start blowing boost at those big heavy valves with factory spring. Id at least put a good spring on it.

 

anything above the stock cam you're going to need springs. hell, put an ls9 cam in it if you want a cheap cam and be able to run more timing than the stock cam will allow.

 

What kind of setup are you running?

 

bolt ons and an ls9 cam for now. swapping cams out when ever i get around to it.

for 300 bucks you can get everything needed for an ls9 swap from the dealer. pick up 40-45 whp above 4500 rpms on an n/a setup. probably even more with forced induction due to the detonation limit of the motor with the stock cam.

 

So its the stock cam that makes this motor not take any timing? Thats what I'm experiencing now.

 

not necessarily. the dynamic compression changed with the ls9 cam. obviously. making up for that lost cylinder pressure can allow the tuner to add more timing in certain area's. with the ls9 cam, it's below 4k where the timing can be added.

i run 10 degree's more below 4k than i ever could with the stock cam on pump gas.

 

My timing is really low under 4k. Like 9 degrees