KY_BOB

iTrader: (2)

I have read some posts saying it was OK but I'm putting 10psi of boost on the intake valves. I would like to shift it in the 6200-6400 range.


Cam specs:

Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 1,500-6,800 RPM
Intake Duration at 050 inch Lift: 212
Exhaust Duration at 050 inch Lift: 218
Duration at 050 inch Lift: 212 int./218 exh.
Advertised Intake Duration: 265
Advertised Exhaust Duration: 271
Advertised Duration: 265 int./271 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.558 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.563 in.
Valve Lift with Factory Rocker Arm Ratio: 0.558 int./0.563 exh. lift
Lobe Separation (degrees): 115
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: No
Grind Number: LS1 XR265HR-15

El_Diablo

iTrader: (8)

I wouldn't. dual valvesprings are cheap compaired to bent valves/cracked heads/chewed up cylinder walls. Especially if your are boosting....it'd prob start getting scary at 3000 rpms.

KY_BOB

iTrader: (2)

I like the idea of LS6 springs for 2 reasons. 1. They are cheap. & 2 Comp 918's have a bad reputation for being noisy. I'm just not sure that they are strong enough for my application.


Any opinions or experience with similar setup?

El_Diablo

iTrader: (8)

it's your engine man. At your mod level..I'm surprised your worried about a spring being too noisy. I run Patriot Gold duals in the Z28. The exhaust note overpowers the sewing machine under the hood. :Edit: Stock Z06 cam lift is .551/.551 I believe. More than that + boost just doesn't seem like a safe bet to me.

KY_BOB

iTrader: (2)

Your probably right. The budget is tight right now and I'm trying to make this fit in but I don't want to save $100 and blow an engine.

I know that Lingenfelter sell those springs with their GT2-3 cam which is higher lift than the Comp cam but the ramps may not be as aggressive.

El_Diablo

iTrader: (8)

I'm not sure of the lingenfelter but the XRs are pretty brutal. I'm assuming you are going with hardened pushrods as well? Do what I do when funds are running short...sell parts I don't need. Last one was the Air conditioning...lol On the car of course, never the truck.

KY_BOB

iTrader: (2)

Yea, pushrods are a given.

KY_BOB

iTrader: (2)

...ALSO, any comments on how well that cam will work with my setup are appreciated.

Coban

iTrader: (14)

Im going with LS6 springs next time I do a cam swap. I have the 918s in there. Im always afraid they will break. And they are freaking noisy.

For what its Worth, Lingenfelter runs LS6 springs with the GT2-3 which has slightly higher lift than the hilift 212/218.

silveradol33

iTrader: (30)

I have a comp 222/224/112lsa and I have the z06 springs, this is on an l33 and I had a similar cam in an lq9 with the same springs. I know alota people who run them and never have any probs. Personally I think all non-stock springs are "noisy"