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  1. #1
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    What's a realistic gain from a cam swap?

    Take a stock car, toss a ls9/zr1 cam in it, what would be the gains?

    Stock for stock with a cam. I know a tune is required so taking the tune out of the equation what should you expect from the cam itself.

  2. #2
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    30 rwhp

    Sent from my KFTT using Tapatalk 2
    662RWHP 652RWTQ
    BMF cam, dual spring,7.4 PRs
    Kooks LT w/cats stock muffs
    ID850's
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  3. #3
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    Thats a good jump from a mild cam

    Sent from my SCH-I605 using Tapatalk 2
    2009 CTSV A6
    Mod list includes:
    ID850
    Ported Snout
    Ported LS7 Throttle Body
    Air raid
    Fluidyne Front Mount HX
    Norcal Ice Box
    LT1Z 2.5 Cam/Springs/Push rods
    2.5 Upper/9.1 Lower 15 lbs Boost
    Kook long tubes mid and cat back

    External mods:
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    661 HP/639 TQ
    G-Force Tuned

  4. #4
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    It's been done many times, and 30 rwhp is a pretty good number.

    Just shows how under-cammed these are.
    2010 Thunder Gray sedan, A6, ebony recaros, LPE 650 (well, sort of), AR headers with cats, 9.1/2.5" pulleys, ID850's, ZL1 Lid, WCCH heads, Mamo Motorsports custom cam, DSteck Flex Fuel module, ZR1 HX pump, custom HX tube set, Fluidyne 3X HX,Mamofied TB

  5. #5
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    Quote Originally Posted by Karch View Post
    It's been done many times, and 30 rwhp is a pretty good number.

    Just shows how under-cammed these are.
    They left a lot of the table with the LSA trying to keep it Caddy tame. The good news is that large gains can be had from a simple cam swap.

    30ish from an ls9
    50ish from a stage 1 type cam

    and it goes up from there depending on supporting mods.
    Last edited by Lt1z; 11-03-2013 at 10:38 AM.

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    No kidding cant wait to put in my lt1z 2.5 cam

    Sent from my SCH-I605 using Tapatalk 2
    2009 CTSV A6
    Mod list includes:
    ID850
    Ported Snout
    Ported LS7 Throttle Body
    Air raid
    Fluidyne Front Mount HX
    Norcal Ice Box
    LT1Z 2.5 Cam/Springs/Push rods
    2.5 Upper/9.1 Lower 15 lbs Boost
    Kook long tubes mid and cat back

    External mods:
    Weapon X Carbon Hood
    Carbon Vents
    Carbon Side Blades

    661 HP/639 TQ
    G-Force Tuned

  7. #7
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    Quote Originally Posted by CCTSV View Post
    No kidding cant wait to put in my lt1z 2.5 cam

    Sent from my SCH-I605 using Tapatalk 2
    Tracking shows that it will be delivered tomorrow.

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    Quote Originally Posted by Boosted2000si View Post
    Take a stock car, toss a ls9/zr1 cam in it, what would be the gains?

    Stock for stock with a cam. I know a tune is required so taking the tune out of the equation what should you expect from the cam itself.
    The is required for more then just the spark and fuel adjustments. The LS9 has a higher power curve then the LSA so at the very least the rev limiter and shift points would need to be changed to realize the gain.

  9. #9
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    Dang, 30rwhp will feel nice. So what's the typical tuner upping the shift points to with the ZR1 cam?

    I also just bought a ZL1 lid... So I might be looking at a total gain of 50rwhp. I am stoked
    2010 Black CTS-V
    10.6 @ 130

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    Quote Originally Posted by venomized03 View Post
    Dang, 30rwhp will feel nice. So what's the typical tuner upping the shift points to with the ZR1 cam?

    I also just bought a ZL1 lid... So I might be looking at a total gain of 50rwhp. I am stoked
    6500

  11. #11
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    Quote Originally Posted by Lt1z View Post
    They left a lot of the table with the LSA trying to keep it Caddy tame. The good news is that large gains can be had from a simple cam swap.

    30ish from an ls9
    50ish from a stage 1 type cam

    and it goes up from there depending on supporting mods.
    would hp gains still be this significant without headers?
    '14 EskY Blk/Blk Loaded
    '11 CtsV Blk/Blk Loaded ~GP Tuning Built~10.99@125mph
    '11
    RxpX Turbo ~Big Boost Performance Built ~ http://www.youtube.com/user/gOtBoOsT916

  12. #12
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    Quote Originally Posted by gOt BoOsT View Post
    would hp gains still be this significant without headers?
    With the LS9, probably. With larger cams you get decreasing returns through manifolds.
    2010 Thunder Gray sedan, A6, ebony recaros, LPE 650 (well, sort of), AR headers with cats, 9.1/2.5" pulleys, ID850's, ZL1 Lid, WCCH heads, Mamo Motorsports custom cam, DSteck Flex Fuel module, ZR1 HX pump, custom HX tube set, Fluidyne 3X HX,Mamofied TB

  13. #13
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    Every time we do a camshaft we add a 9.1 lower. Gains of usually 100-130 RWHP.
    HOME OF THE QUICKEST AND FASTEST 1/4 MILE CTS-V 9.44 @ 149 MPH
    HOME OF THE FASTEST 1 MILE CTS-V 200.9 MPH
    HOME OF THE FASTEST 1/4 MILE SUPERCHARGED C6 Corvette 8.45 @ 163 MPH
    HOME OF THE FASTEST 1/4 MILE C6 M6(non Z06/ZR1) 9.6 @ 148 MPH


    G-FORCE Motorsports
    1941 CR 129 Pearland TX 77581
    281-993-5451 PH 281-993-5421 FAX

    www.gforce-tx.com
    gforcemike@gmail.com
    PCM Tuner LSX and SCT <-> How Much Force Can You Take??
    2013 FORD RAPTA
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  14. #14
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    Quote Originally Posted by Mike TexaSS View Post
    Every time we do a camshaft we add a 9.1 lower. Gains of usually 100-130 RWHP.
    Definitely pulley it if your installing the cam. They go together like peanut butter and jelly.
    DynoSpeed Racing Built and Tuned
    707 rwhp/655 rwtq, 10.36 @ 132.4 with blower only
    868 rwhp/800 rwtq, 9.97 @ 140.11 with spray
    Stage 3: 744 rwhp/680 rwtq, blower only 93 pump, 10.27@135 blower only

  15. #15
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    Quote Originally Posted by Mike TexaSS View Post
    Every time we do a camshaft we add a 9.1 lower. Gains of usually 100-130 RWHP.
    And this is the reason I ordered my entire pulley system with my BTR stage 3 cam.

    9.1 lower and 2.5 upper with all the supporting pulleys also from Metco Motorsports.

    Can't wait
    2010 Envy Green Widebody Sedan A6

    Performance
    D3 Air Intake | MSD Wires | TR7Ix Spark Plugs | 36" Double Wide HX | White DP Hoses| EBC Dimple and Slotted Rotors

    Look Pretty Parts
    AirREX Race Air Suspension | Forged Vossen Precision Series Split 10 Twist: Front: 20x10.5 w/ T1R 305/25/20, Rear: 20x12 w/ T1R 345/25/20 | D3 Roof Spoiler | Specter Werkes Trunk Spoiler | Power Hood | White LED conversation interior and license plate | V1 Radar

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    | BTR Stage III Cam | BTR .660" Lift Platinum Dual Spring Kit | BTR Chromoly Push-rods | Metco Motorsports Full Pulley Kit; 2.5 Upper, 9.1 Lower, Isolator, S/C Drive Tensioner Pulley, Accessory Bullet Tensioner Pulley, 50mm and 100mm Idler Pulley | Meisterschaft Performance Exhaust W/ AR Pipe, X-Pipe, and EV Wireless Control | ZEX EFI Wet Nitrous System | ZEX -4AN Liquid Filled Gauges Kit | ZEX Wire-in Nitrous Bottle Heaters | ZEX -4AN Dual Outlet Purge Kit | Aerospace Dual Nitrous Bottle Bracket | ARH 2" Headers with 3" Piping |

    Waiting Shipment
    ID1000 | KW Mag. Delete modules


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  16. #16
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    In my case (09 6M), LS9 with 2.4 upper only on ported snout with ported LS7 TB, 85lb injectors, plug swap, hardened pushrods, PAC1518 springs and rocker swap on stock manifolds and netted 45whp and 40 torque on 6350 RPM limit, zero KR. Added ZL1 and picked up additional 15whp and 20 torque. Idle barely discernible from OEM, which is what I wanted.

  17. #17
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    I had the LS9 camshaft in my personal V. I loved it!
    HOME OF THE QUICKEST AND FASTEST 1/4 MILE CTS-V 9.44 @ 149 MPH
    HOME OF THE FASTEST 1 MILE CTS-V 200.9 MPH
    HOME OF THE FASTEST 1/4 MILE SUPERCHARGED C6 Corvette 8.45 @ 163 MPH
    HOME OF THE FASTEST 1/4 MILE C6 M6(non Z06/ZR1) 9.6 @ 148 MPH


    G-FORCE Motorsports
    1941 CR 129 Pearland TX 77581
    281-993-5451 PH 281-993-5421 FAX

    www.gforce-tx.com
    gforcemike@gmail.com
    PCM Tuner LSX and SCT <-> How Much Force Can You Take??
    2013 FORD RAPTA
    2010 TTT5 & OTTA Extreme Street Champions

  18. #18
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    Quote Originally Posted by jb_bgg View Post
    In my case (09 6M), LS9 with 2.4 upper only on ported snout with ported LS7 TB, 85lb injectors, plug swap, hardened pushrods, PAC1518 springs and rocker swap on stock manifolds and netted 45whp and 40 torque on 6350 RPM limit, zero KR. Added ZL1 and picked up additional 15whp and 20 torque. Idle barely discernible from OEM, which is what I wanted.
    You and I have basically the same set up sans the LS9 Cam and ZL1 intake manifold. Like you, I desire a very smooth stock like idle with zero drivability issues even if I sacrificing 15 + RWHP/TQ.

    My question:

    Is it a worth wile investment getting the LS9 cam, with ZL1 lid, coupled with long tube headers to stock cat back?
    Also, am I asking for problems if I go with a lower like the 8.6 or 9.1? I am content for now since my car was just modded and I still getting used to the power increase over stock, but I know I will probably yearn for more in the future. My concern is all of the engine issues threads that have been popping up lately that seem to always have both upper and lower pulley combos.

  19. #19
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    Usually there is more to it. No way its going to be bullet proof with a stock short block. I wouldn't be concerned if I were you just get a good safe tune on it and respect the car and it should last you.

    Sent from my SCH-I605 using Tapatalk 2
    2009 CTSV A6
    Mod list includes:
    ID850
    Ported Snout
    Ported LS7 Throttle Body
    Air raid
    Fluidyne Front Mount HX
    Norcal Ice Box
    LT1Z 2.5 Cam/Springs/Push rods
    2.5 Upper/9.1 Lower 15 lbs Boost
    Kook long tubes mid and cat back

    External mods:
    Weapon X Carbon Hood
    Carbon Vents
    Carbon Side Blades

    661 HP/639 TQ
    G-Force Tuned

  20. #20
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    Quote Originally Posted by Hotsoss View Post
    You and I have basically the same set up sans the LS9 Cam and ZL1 intake manifold. Like you, I desire a very smooth stock like idle with zero drivability issues even if I sacrificing 15 + RWHP/TQ.

    My question:

    Is it a worth wile investment getting the LS9 cam, with ZL1 lid, coupled with long tube headers to stock cat back?
    Also, am I asking for problems if I go with a lower like the 8.6 or 9.1? I am content for now since my car was just modded and I still getting used to the power increase over stock, but I know I will probably yearn for more in the future. My concern is all of the engine issues threads that have been popping up lately that seem to always have both upper and lower pulley combos.
    My opinion....If your going to do long tubes you might as well do a custom cam vs the LS9.
    2012 - Black Diamond Coupe: "Oh its stock...."

  21. #21
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    What he said ^^^^

    Sent from my SCH-I605 using Tapatalk 2
    2009 CTSV A6
    Mod list includes:
    ID850
    Ported Snout
    Ported LS7 Throttle Body
    Air raid
    Fluidyne Front Mount HX
    Norcal Ice Box
    LT1Z 2.5 Cam/Springs/Push rods
    2.5 Upper/9.1 Lower 15 lbs Boost
    Kook long tubes mid and cat back

    External mods:
    Weapon X Carbon Hood
    Carbon Vents
    Carbon Side Blades

    661 HP/639 TQ
    G-Force Tuned

  22. #22
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    Very true.

  23. #23
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    Quote Originally Posted by Mike TexaSS View Post
    Every time we do a camshaft we add a 9.1 lower. Gains of usually 100-130 RWHP.
    Question about this statement. So with a ZR1 cam swap, you recommend going with a lower pulley, for more boost? What if my car does NOT have the ported blower/snout/TB yet? I definitely plan on doing the ported stuff in the near future though. Would that be too much boost, in the meantime?

    My current mods are.. 2.5 upper, Airaid intake, 160 thermostat, Alky control single nozzle kit, Cat delete and magnaflows.
    Awaiting install, is a ZR1/LS9 cam and supporting stuff, and my new ZL1 lid came in today

    I might go ahead and do the lower if you guys think it would be OK!


    THANKS JASON
    2010 Black CTS-V
    10.6 @ 130

  24. #24
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    I would do the lower while your there.

    Sent from my SCH-I605 using Tapatalk 2
    2009 CTSV A6
    Mod list includes:
    ID850
    Ported Snout
    Ported LS7 Throttle Body
    Air raid
    Fluidyne Front Mount HX
    Norcal Ice Box
    LT1Z 2.5 Cam/Springs/Push rods
    2.5 Upper/9.1 Lower 15 lbs Boost
    Kook long tubes mid and cat back

    External mods:
    Weapon X Carbon Hood
    Carbon Vents
    Carbon Side Blades

    661 HP/639 TQ
    G-Force Tuned

  25. #25
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    Quote Originally Posted by CCTSV View Post
    I would do the lower while your there.

    Sent from my SCH-I605 using Tapatalk 2
    Even without the ported stuff? What size lower and how much boost does it add?
    2010 Black CTS-V
    10.6 @ 130

  26. #26
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    In addition to DD I road course mine so I want durability over 20-25 minutes sessions of constant WOT blasts and hard braking vs. 1/4 mile blasts or occasional spirited street driving. More boost = more heat/higher IAT2's so there was a limit on how high I wanted to go. I looked at it this way; 2.5 and 9.1 lower averages around 15.5lbs boost. 2.4 only (with 100mm idler) is 15lbs. I used the $$$ I would have spent on a balancer/lower pulley and put that towards an AlkyControl meth kit pre-boost. Gave me the intake charge cooling for extended track use and the ability to safely bump the timing a bit and increase HP that way without the extra heat from more boost or KR/detonation coming into play. I went LS9 because I didn't want to mess with the heads and abuse or listen to the valve train with a more aggressive cam. Once I do the exhaust I'll pick up at least another 30WHP or perhaps a little more, and that is plenty for my use.

    If I had a do-over I would stop once all the brake and cooling mods were done (CAI, HX and pump, diff cooler, maybe alkycontrol) and put all the money I spent on power mods into the suspension. On the track THAT is where these big girls need the most help and investment; IMO OEM power is more than adequate for 98% of the owners like me tracking these cars. Anyone can drive fast going straight...


 

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