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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 08-05-2009, 10:32 AM   #1
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L99 Camshaft Info

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Old 08-05-2009, 11:56 AM   #2
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That sounds promising! I couldn't find any numbers yet on their website, but I'll definitely keep an eye on that.
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Old 08-05-2009, 12:24 PM   #3
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been out a while.. I have it in my car with a cam
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Old 08-05-2009, 01:27 PM   #4
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been out a while.. I have it in my car with a cam
And?

Do you see/feel the gains they advertise?
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Old 08-05-2009, 01:32 PM   #5
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No shit man, where you been hiding? Get this word out.
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Old 08-05-2009, 04:38 PM   #6
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We are just wrapping up our first L99 cam install right now, the black spacer is the only thing used in the kit, the rest of the components are tools used to install it.
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Old 08-05-2009, 05:14 PM   #7
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how much for the kit installed and does it void the warranty?
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Old 08-05-2009, 05:15 PM   #8
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And?

Do you see/feel the gains they advertise?
I did headers and converter at the same time, so yeah its way faster.. just waiting to get to the track and see, don't have much time these days. The converter will show less power on the dyno, so dyno #'s don't mean much after a converter is installed, best is to tune the car for air/fuel and transmision... and then go to the track.

So its all tuned and ready to go, just when I get a chance
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Old 08-05-2009, 10:01 PM   #9
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how much for the kit installed and does it void the warranty?
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.
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Old 08-05-2009, 10:09 PM   #10
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been out a while.. I have it in my car with a cam
yeah I know. But it seemed a lot of people were unaware of them so I thought I'd post it.
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Old 08-05-2009, 10:22 PM   #11
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Glad you did, If I go this route I'm just going to do a cam and get rid of the vvt swap out cam/phaser. I'd like to make my L99 as close to a LS3 as I can, not changing pistons but the cam is on the to do list.
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Old 08-06-2009, 04:00 PM   #12
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Has Comp published the gains they've been able to produce on the L99? I didn't see anything on their website.
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Old 08-06-2009, 05:23 PM   #13
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Quote:
Originally Posted by 69 Hugger View Post
Glad you did, If I go this route I'm just going to do a cam and get rid of the vvt swap out cam/phaser. I'd like to make my L99 as close to a LS3 as I can, not changing pistons but the cam is on the to do list.
if you are going to do that, swap out the lifters at the same time as half of the lifters in the L99 are different than the LS3 lifters. check my Cam info sticky for a couple pictures of the L99 lifter
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Old 08-06-2009, 08:43 PM   #14
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Has Comp published the gains they've been able to produce on the L99? I didn't see anything on their website.
I read in a article Comp Cams man said that they got a 70HP increase with a "cam only" change on the L92 6.2L truck engine. Stock was 400HP, 430 with headers and 500HP (engine dyno) with the largest one. Smaller cam had a 60HP gain the best I remember. VVT technology looks very promising.
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Old 08-07-2009, 02:07 PM   #15
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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?
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Old 08-07-2009, 03:43 PM   #16
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Quote:
Originally Posted by rodimus prime View Post
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.
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Old 08-07-2009, 05:02 PM   #17
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Quote:
Originally Posted by toehead93 View Post
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.


Quote:
Originally Posted by mcdoogle6969 View Post
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
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Old 08-08-2009, 12:12 AM   #18
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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

Last edited by RonC; 08-08-2009 at 12:15 AM. Reason: Link change
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Old 08-08-2009, 04:43 PM   #19
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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...
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