L99 Camshaft Info

[toehead93]

I saw that article too for the L92. I didn't know the L92 was 6.2L so I thought the gains might be different for the L99. Another thing that will affect the power gains is the AFM on the L99. I'd like to see how the cam phaser affects the L99 numbers to keep AFM active? The L92 does not have AFM, right?

[mcdoogle6969]

Originally Posted by rodimus prime

Yes it will void your warranty. Your removing internals from the motor and replacing them with aftermarket parts that are designed to be more violent on the valve train. So yes warranty voided because you (not gm) opened up the motor and because you (not gm) replaced a major engine component with an aftermarket part.

My dealership said i can install any mods on the car but they will only void the warranty if the problem is caused by the mod. I suggest asking your dealer about that too.

[CamaroSpike23]

Originally Posted by toehead93

I saw that article too for the L92. I didn't know the L92 was 6.2L so I thought the gains might be different for the L99. Another thing that will affect the power gains is the AFM on the L99. I'd like to see how the cam phaser affects the L99 numbers to keep AFM active? The L92 does not have AFM, right?

L92 has VVT, but not AFM. think of the L92 as an iron block L99.

Originally Posted by mcdoogle6969

My dealership said i can install any mods on the car but they will only void the warranty if the problem is caused by the mod. I suggest asking your dealer about that too.

id get that in writing and notarized just to be safe

[RonC]

The L92 in the Denali and Escalade doesn't have AFM. The Pontiac G8 has AFM but no VVT. Some of the 6.0L trucks now have both AFM and VVT. The L99 is the first full production 6.2L with both. The first few 6.2L 2007 Escalades came with it but it was disabled.

I was looking on Comp Cams website and found the specs for their 4 VVT cams and thought some of you might like to check them out.

http://www.compcams.com/Cam_Specs/Browse.aspx

[pharmd]

Nothing wrong with comp, but I'd seriously look into others doing the same thing...comp is like mcdonalds, nothing wrong with it, but you might be able to get a better burger some place else...

New Era and MAST Motorsports would be 2 shops that come to mind that have been doing R&D on these cams for a while now. I have spoke at length on the phone with both shops and both Mike and Horace are great to deal with...Mike is on the forum almost daily, I'd support the shops that are supporting you guys...I don't see comp anywhere on here...