Daredevil_TA

iTrader: (6)

I have a GT2-3 camshaft from Lingenfelter--cam specs are 207/220 .578 .581
with a 112 LSA, would it be safe to run the 1.8 rockers or would i need flycut pistons, i dont know what my maximum lift can be, thanx in advance

Daredevil_TA

iTrader: (6)

c'mon people, i didnt post in this section for the hell of it, i know some of you know the answer to this

Long Beach

iTrader: (51)

Im not an expert by any means but im sure you can run 1.8 rockers with any cam it just depends on what springs you have. Im not 100% sure but with your lift with the 1.8 you will be close to .600 and maybe just over. I think you have to add 15-20% increase in lift with these rockers. Good luck

vettenuts

iTrader: (4)

You should be OK, your duration is fairly low. Comp 918's would be a good spring for this, not sure what you are running. Also not sure what rockers you are getting, but the Cranes are excellent rockers.

Daredevil_TA

iTrader: (6)

I have Comp 918's so i have that area covered, sorry< I guess i should've said that earlier--I haven't picked a rocker yet since i wasn't sure if i could even run the 1.8's with the lift of the cam cuz i know it'll be well over .600 lift. I have another question, but do 1.8s increase your valvetrain noise? I don't want it to sound like a sewing machine under the hood

vettenuts

iTrader: (4)

I have found the Crane rockers, properly adjusted, are as quiet or quieter than stock. You need to check your installed height on the springs though to make sure you don't hit coil bind and are at least 0.050" from it.

JPH

iTrader: (2)

well if i am right, you should have a .340 intake lobe lift and .342 exhasut lobe. so if you put 1.8's on top of that you get .340x1.8=.612 and .342x1.8=.615. clearance should not be a problem ptv, but i would rethink the valve springs though.

vettenuts

iTrader: (4)

Yes, they are on the edge. He really needs to know the installed height. If you get rid of the 918's, then you need to go with the Crane 833's with this setup. Don't go PRC or Patriots, I have heard from a couple of people the Crane 1.8's tickle one of the spring harmonics.

Daredevil_TA

iTrader: (6)

so 918's would not be enough? an what about valvetrain noise?

wildta

iTrader: (1)

Are you sure its a 112 lsa I thought that cam was a 118.5 and if it is 118.5, you can use 1.8

Daredevil_TA

iTrader: (6)

whoops ya, it is a 118.5, i didnt have the link to the website on my new comp, my bad guys--so i can't use 1.8 rockers with that LSA?

Daredevil_TA

iTrader: (6)

bump...