Camshaft L99 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Autel · 10-20-2020, 02:13 PM

Hello everyone!
I have planned to change cam in my Camaro 2012 L99. It is a Com cams 689-422-13, 218 / 230,220 / 232, 115 lsa. Does anyone have experience with this cam? Lopey idle, power gains ... easy to tune ?. I will get longtubes and cai at the same time.

Thanks
Anders Jonsson
Sweden

Juiced1 · 10-22-2020, 10:27 AM

That cam seems okay but I'm not sure if it's a VVT cam like you'll need. Keep in mind the L99 motor has VVT (variable valve timing) and the cam needs to be set for this or you'll need to delete it. You'll also need to do a DOD/AFM delete.

If you're not looking to do a torque converter you don't want a big cam. We've had a lot of success with the stage1 GPI cam. 70rwhp gains, really solid chop and the tune simple enough. If you order the cam from us we can ship it to Sweden and even help with the tuning. PM or email us for more details.

InFiD3ViL · 10-22-2020, 01:00 PM

That's an AFM/VVT camshaft, at least going by their description. I would be nervous as heck running an aftermarket cam that kept AFM due to those AFM lifters. Are you allowed to alter cars to remove things like AFM in Sweden? Because If you are I certainly would recommend it.

From Summit's description of that cam:

'COMP Cams XFI AFM GM Gen IV camshafts are designed to work with the VVT (variable valve timing) and AFM (active fuel management) components of GM V8 engines. They deliver outstanding top-end power in modified L99-style applications without sacrificing low-end power when properly programmed. Get an increase in performance with the lobe profile of COMP Cams XFI AFM GM Gen IV camshafts.'

Autel · 10-24-2020, 02:57 PM

Ok, are they really that bad? The afm is disabled in the tune if it matters. According to Swedish law you are not allowed to alter anything. But in most cases you can pass the inspection as long as it is not too extreme. We have to pass smogtest (tailpipe snifftest) and I think it can bee difficult with to big cam. But i do not hope this cam gives to bad emmissions. Juiced1 it sounds great. It’s difficult to find some one in Sweden who has experience in vvt tuning. I’ll email you when it’s time to get started with the car.

Thanks
Anders Jonsson

10-20-2020, 02:13 PM	#1
Autel Drives: Camaro ss Join Date: Jul 2020 Location: Sweden Posts: 5	Camshaft L99 Hello everyone! I have planned to change cam in my Camaro 2012 L99. It is a Com cams 689-422-13, 218 / 230,220 / 232, 115 lsa. Does anyone have experience with this cam? Lopey idle, power gains ... easy to tune ?. I will get longtubes and cai at the same time. Thanks Anders Jonsson Sweden

10-22-2020, 01:00 PM	#3
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,737	That's an AFM/VVT camshaft, at least going by their description. I would be nervous as heck running an aftermarket cam that kept AFM due to those AFM lifters. Are you allowed to alter cars to remove things like AFM in Sweden? Because If you are I certainly would recommend it. From Summit's description of that cam: 'COMP Cams XFI AFM GM Gen IV camshafts are designed to work with the VVT (variable valve timing) and AFM (active fuel management) components of GM V8 engines. They deliver outstanding top-end power in modified L99-style applications without sacrificing low-end power when properly programmed. Get an increase in performance with the lobe profile of COMP Cams XFI AFM GM Gen IV camshafts.' __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

10-22-2020, 10:27 AM	#2
Juiced1 Account Suspended Drives: 2012 2SS CAMARO 45th Join Date: Apr 2011 Location: St. Charles, IL Posts: 18,648	That cam seems okay but I'm not sure if it's a VVT cam like you'll need. Keep in mind the L99 motor has VVT (variable valve timing) and the cam needs to be set for this or you'll need to delete it. You'll also need to do a DOD/AFM delete. If you're not looking to do a torque converter you don't want a big cam. We've had a lot of success with the stage1 GPI cam. 70rwhp gains, really solid chop and the tune simple enough. If you order the cam from us we can ship it to Sweden and even help with the tuning. PM or email us for more details.

10-24-2020, 02:57 PM	#4
Autel Drives: Camaro ss Join Date: Jul 2020 Location: Sweden Posts: 5	Ok, are they really that bad? The afm is disabled in the tune if it matters. According to Swedish law you are not allowed to alter anything. But in most cases you can pass the inspection as long as it is not too extreme. We have to pass smogtest (tailpipe snifftest) and I think it can bee difficult with to big cam. But i do not hope this cam gives to bad emmissions. Juiced1 it sounds great. It’s difficult to find some one in Sweden who has experience in vvt tuning. I’ll email you when it’s time to get started with the car. Thanks Anders Jonsson