Bolt-ons without cam? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

chef-beavis · 10-17-2014, 11:15 AM

Given all the failures I read about that seem to be related to cam installs, I've been wondering what gains could be had leaving the stock cam in but doing the other work.

I'd say CAI, headers, cats, intake, CNC heads, TB, and a tune. Thoughts? How much do you leave on the table by not touching the cam?

Thanks!

hammdo · 10-17-2014, 11:23 AM

All bolt ons -- 3.91 upgrade

http://www.camaro5.com/forums/showthread.php?t=364759

I'll be doing a cam -- but break-in is really important -- using Joe Gibbs for the break-in.

-Don

BenningJ · 10-17-2014, 11:32 AM

I have the LS3 tuned with Dynatech LT headers, VMax PTB, CAI Inductions, Inc intake, Apex scoop and washer relocator, and NPP dual mode exhaust. It put down 424rwph/411rwtq.

I wouldn't do CNC heads. I you will only gain a few horsepower at a very high cost. One option I have thought about is an LS9 cam. It's good for around 20hp and compatible with FI. I would be sitting around 440-450rwph with stock lifters, spring, and pushrod

Another option is contacting GPI for their modified intake manifold and tune. I saw a thread a few months back where they were able to get ~435+rwph out of an LS3 with no internal work.

hammdo · 10-17-2014, 11:42 AM

I did the GPI work and mod -- 402 RWHP on an L99 A6 with my mods and no internals either.

-Don

Scuzz · 10-17-2014, 12:01 PM

I was 375 rwhp before cam on a auto without head work.

But I ran a gt11 cam for a year with no problems. I just swapped engines to a LSA with a gt9. Still no problems. I'm now pokin my head into the low 700rwhp.

ytown87 · 10-17-2014, 12:12 PM

All depends on cam too though. Avg about 50hp left behind w/o cam. Little more with head work and manifold. I dont really consider it being left behind though. Intake exhaust allow the engine to function better as it come from the factory with capabilities of. Cam more so changes the specs of what GM gave you to begin with and you are operating outside of what you were given from the beginning (makes sense in my head at least)

62nalide · 10-17-2014, 12:26 PM

Same day I did the cam install at GPI I was at the track later that night lol
No problems what so ever here.

10-17-2014, 11:15 AM	#1
chef-beavis Drives: IOM 2013 2SS/RS, Greenie, 06 FXSTBi Join Date: Apr 2009 Location: Turd Town, WI Posts: 1,602	Bolt-ons without cam? Given all the failures I read about that seem to be related to cam installs, I've been wondering what gains could be had leaving the stock cam in but doing the other work. I'd say CAI, headers, cats, intake, CNC heads, TB, and a tune. Thoughts? How much do you leave on the table by not touching the cam? Thanks!

10-17-2014, 11:32 AM	#3
BenningJ Drives: 2013 AGM 1SS/RS LS3 Join Date: Mar 2011 Location: Cedar Falls, Iowa Posts: 1,581 View My Garage	I have the LS3 tuned with Dynatech LT headers, VMax PTB, CAI Inductions, Inc intake, Apex scoop and washer relocator, and NPP dual mode exhaust. It put down 424rwph/411rwtq. I wouldn't do CNC heads. I you will only gain a few horsepower at a very high cost. One option I have thought about is an LS9 cam. It's good for around 20hp and compatible with FI. I would be sitting around 440-450rwph with stock lifters, spring, and pushrod Another option is contacting GPI for their modified intake manifold and tune. I saw a thread a few months back where they were able to get ~435+rwph out of an LS3 with no internal work. __________________ 2013 Camaro 1SS/RS - Ashen Gray Metallic \| LS3 \| CAI Inductions, Inc Intake \| Vmax Ported Throttle Body \| Dynatech 1.875" Long Tube Headers \| Apex Scoop & Washer Bottle Relocation \| Lethal Racing Night Fury Cam \| BTR 7.400" Push Rods \|LS2 Dampener \| Melling 10296 Oil Pump \| IWIS Chain \| BTR .660" Dual Valve Springs \| BTR Trunion Upgrade Kit \| Lethal Racing Tuned \| Anvil Notch Spoiler \| BMR Split Drop Springs \| Eaton TrueTrac \| GM 3.91 Gears \| LPW Diff Cover \| Rohana RF2 275/40 20x10F 315/35 20x11R \| BMR Polyurethane Motor Mounts

10-17-2014, 12:01 PM	#5
Scuzz Drives: 2012 Camaro SS Join Date: Aug 2013 Location: Mckinney, TX Posts: 347 View My Garage	I was 375 rwhp before cam on a auto without head work. But I ran a gt11 cam for a year with no problems. I just swapped engines to a LSA with a gt9. Still no problems. I'm now pokin my head into the low 700rwhp. __________________ 2012 Camaro SS Automatic AGP Twin Turbo LSX427 / ADM Magic / 4L80 “1360 Rwhp 1225 Rwtq 25 lbs of boost”

10-17-2014, 12:12 PM	#6
ytown87 Drives: C6 Corvette Join Date: Sep 2013 Location: Tampa, FL Posts: 1,264	All depends on cam too though. Avg about 50hp left behind w/o cam. Little more with head work and manifold. I dont really consider it being left behind though. Intake exhaust allow the engine to function better as it come from the factory with capabilities of. Cam more so changes the specs of what GM gave you to begin with and you are operating outside of what you were given from the beginning (makes sense in my head at least) __________________ 2008 C6 m6. Carbon creations front/rear carbon fiber wodebody fenders. Carbon fiber hood carbon fiber roof hoop carbon fiber zr1 extreme spoiler. NW 102mm tb. Ported intake manifold. Cometic .040 head gaskets. LG motorsports G6x3 cam. DSX flex fuel sensor. AEM methanol kit. Z06 brakes. Ebiach sway bars. ZR1 rep wheels and Nitto Invo tires. Monster stage 3 twin disc clutch. MGW short shifter. Corbeau race seats. Gforce race harnesses. SLP loudmouth 2 mufflers. Carbon fiber exhaust tips. RPM stage 4 transmission and Stage 3 rear diff. 3.73 gears. Vararam cai. Kooks 1 7/8 headers and x-pipe.

10-17-2014, 12:26 PM	#7
62nalide Drives: 2013 SS Join Date: May 2013 Location: DFW Posts: 4,102	Same day I did the cam install at GPI I was at the track later that night lol No problems what so ever here. __________________ https://frankensteined.net/ Martin@Frankensteined.net

10-17-2014, 11:23 AM	#2
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	All bolt ons -- 3.91 upgrade http://www.camaro5.com/forums/showthread.php?t=364759 I'll be doing a cam -- but break-in is really important -- using Joe Gibbs for the break-in. -Don

10-17-2014, 11:42 AM	#4
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	I did the GPI work and mod -- 402 RWHP on an L99 A6 with my mods and no internals either. -Don