Lunati cam clearance question & more
Thread Starter
Teching In
Joined: Nov 2005
Posts: 14
Likes: 0
From: Buckley WA
Lunati cam clearance question & more Hey guys, anyone running the Lunati cam listed here without piston smack ?(stock bottom & heads) Advertised Duration IN/EX: 298/301
Duration @.050 IN/EX: 237/242
Gross Valve Lift IN/EX: .595"/.595"
Lobe Sep Angle / Intake Ctr Line: 112/108
Valve Lash IN/EX: Hyd/Hyd
RPM Range: 3000-6500
I installed this cam today & rolled it over, nothing felt touching but of course Id rather the heads were off to clay it. Took me by surprise when I measured the stock lobe quickly w/calipers (2000 ls1) @ 1.85 & the Lunati was smaller @ 1.8 What am I missing here ? For some reason I expected the Lunati to be quite larger than stock. Clearly you could see the ramp difference though. Yes I do feel stupid posting this, but figured Id ask the pros anyhow. Thanks--Don
Duration @.050 IN/EX: 237/242
Gross Valve Lift IN/EX: .595"/.595"
Lobe Sep Angle / Intake Ctr Line: 112/108
Valve Lash IN/EX: Hyd/Hyd
RPM Range: 3000-6500
I installed this cam today & rolled it over, nothing felt touching but of course Id rather the heads were off to clay it. Took me by surprise when I measured the stock lobe quickly w/calipers (2000 ls1) @ 1.85 & the Lunati was smaller @ 1.8 What am I missing here ? For some reason I expected the Lunati to be quite larger than stock. Clearly you could see the ramp difference though. Yes I do feel stupid posting this, but figured Id ask the pros anyhow. Thanks--Don
The basecircle of that cam is probably smaller. It will fit with no problems. PTV might be relatively close though. I have a 244/248 .598/.598 115. No problems and that is with milled 30 thousands heads.
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Originally Posted by Don Gair
Hey guys, anyone running the Lunati cam listed here without piston smack ?(stock bottom & heads) Advertised Duration IN/EX: 298/301
Duration @.050 IN/EX: 237/242
Gross Valve Lift IN/EX: .595"/.595"
Lobe Sep Angle / Intake Ctr Line: 112/108
Valve Lash IN/EX: Hyd/Hyd
RPM Range: 3000-6500
I installed this cam today & rolled it over, nothing felt touching but of course Id rather the heads were off to clay it. Took me by surprise when I measured the stock lobe quickly w/calipers (2000 ls1) @ 1.85 & the Lunati was smaller @ 1.8 What am I missing here ? For some reason I expected the Lunati to be quite larger than stock. Clearly you could see the ramp difference though. Yes I do feel stupid posting this, but figured Id ask the pros anyhow. Thanks--Don
Duration @.050 IN/EX: 237/242
Gross Valve Lift IN/EX: .595"/.595"
Lobe Sep Angle / Intake Ctr Line: 112/108
Valve Lash IN/EX: Hyd/Hyd
RPM Range: 3000-6500
I installed this cam today & rolled it over, nothing felt touching but of course Id rather the heads were off to clay it. Took me by surprise when I measured the stock lobe quickly w/calipers (2000 ls1) @ 1.85 & the Lunati was smaller @ 1.8 What am I missing here ? For some reason I expected the Lunati to be quite larger than stock. Clearly you could see the ramp difference though. Yes I do feel stupid posting this, but figured Id ask the pros anyhow. Thanks--Don
The ramps on the Lunati are a bit softer than Comp XE lobes. It should be pretty kind on the valvetrain, be a little sluggish down low, but all hell should break loose over 4000rpm with it pulling like mad above 5K. Let us know where the cam peaks!
Let us know the results. This is a cam I have my eye on!
Thread Starter
Teching In
Joined: Nov 2005
Posts: 14
Likes: 0
From: Buckley WA
thanks for the info guys. heres a weird one, I swapped out the rod bolts also & there were no collers . My engine was supposed to be out of a 2000 camaro. Does this mean it may be 01 ? Was that a waste ? Thanks again---Don
