JasonD
03-16-2009, 05:15 PM
Hey check this one out!
I switched my order from the M6 to the A6 because I wanted to play with the shifting, etc. My only problem was the VVT in the L99 not allowing cam swaps, etc.
I got a Press Release today regarding Comp Cams Phase limiter kits...
The 2007 & newer GM L92 engines utilize Variable Valve Timing (VVT) controlled via cam phasers. Cam phasers are computer controlled cam gears that automatically optimize camshaft timing based on the current engine rpm. While this technology provides tremendous efficiency benefits, it presents a challenge when designing performance cams due to the wide range of valve timing movement and constantly changing piston to valve clearance. As a result the COMP CamsŪ engineers have developed a Cam Phaser Limiter Kit that restricts the range of cam timing movement from 50° to 20°. This modification provides the necessary valve clearance for serious performance camshafts with tighter lobe separations – while still utilizing the benefits of the VVT technology. The resulting upper-rpm gains are some of the largest we’ve ever seen from a camshaft swap without sacrificing any bottom-end or mid-range performance.
Does that ever sound tasty! According to their web site, it is $220.45 retail
http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=CC&Product_Code=5456&Category_Code=
I know this is for L62, but surely it will work on L99 or they will develop a version for it. They would be stupid not to, IMO. Attached is a PDF I made with more info, including cam selection.
I think this might be a mod in my future if it works for L99!
I switched my order from the M6 to the A6 because I wanted to play with the shifting, etc. My only problem was the VVT in the L99 not allowing cam swaps, etc.
I got a Press Release today regarding Comp Cams Phase limiter kits...
The 2007 & newer GM L92 engines utilize Variable Valve Timing (VVT) controlled via cam phasers. Cam phasers are computer controlled cam gears that automatically optimize camshaft timing based on the current engine rpm. While this technology provides tremendous efficiency benefits, it presents a challenge when designing performance cams due to the wide range of valve timing movement and constantly changing piston to valve clearance. As a result the COMP CamsŪ engineers have developed a Cam Phaser Limiter Kit that restricts the range of cam timing movement from 50° to 20°. This modification provides the necessary valve clearance for serious performance camshafts with tighter lobe separations – while still utilizing the benefits of the VVT technology. The resulting upper-rpm gains are some of the largest we’ve ever seen from a camshaft swap without sacrificing any bottom-end or mid-range performance.
Does that ever sound tasty! According to their web site, it is $220.45 retail
http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=CC&Product_Code=5456&Category_Code=
I know this is for L62, but surely it will work on L99 or they will develop a version for it. They would be stupid not to, IMO. Attached is a PDF I made with more info, including cam selection.
I think this might be a mod in my future if it works for L99!