Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?
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2009-2014 Cadillac CTS-V Performance Mods Discussion, Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley? in Cadillac CTS-V Series Forum - 2009-2014; I know some people here have had the LPE kit installed with the 2.55" drive pulley installed and heard great ...
  1. #1
    Kirk3 is offline Cadillac Owners Member
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    Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    I know some people here have had the LPE kit installed with the 2.55" drive pulley installed and heard great things. I wanted to know if anyone had done both the 2.55" along with the harmonic balancer and one of their 5% or 10% overdrive pulleys. I would love to know what any of you that have this combo think of it.

    Thanks

    K3

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    wait4me's Avatar
    wait4me is offline Cadillac Owners Connoisseur
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    Re: Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    Several people have on this forum, But most people use the type we sell because you have more size options for final boost.

    You are close enough to our shop to check out cars that have those mods.

    We install the upper pulley onto the snout for $200 and the lower for $200 if you need to have it installed.

  4. #3
    DrumStix is offline Cadillac Owner
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    Re: Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    Yeah, their max crank pulley size is only 8.66" with no plans for anything bigger.

  5. #4
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    Re: Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    Quote Originally Posted by Kirk3 View Post
    I know some people here have had the LPE kit installed with the 2.55" drive pulley installed and heard great things. I wanted to know if anyone had done both the 2.55" along with the harmonic balancer and one of their 5% or 10% overdrive pulleys. I would love to know what any of you that have this combo think of it.

    Thanks

    K3
    I'm running that setup with the 10% overdrive pulley. Added Kooks headers, LPE intake tube and a tune by Behe Performance. Well worth it...

  6. #5
    Titaniumseeker is offline Performance Enthusiast
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    Re: Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    Quote Originally Posted by thebigjimsho View Post
    I'm running that setup with the 10% overdrive pulley. Added Kooks headers, LPE intake tube and a tune by Behe Performance. Well worth it...
    +1 I have a similar setup being installed today at Behe Performance. My V is an Auto.

  7. #6
    thebigjimsho's Avatar
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    Re: Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    Quote Originally Posted by Titaniumseeker View Post
    +1 I have a similar setup being installed today at Behe Performance. My V is an Auto.
    Awesome! Tell John Big Jim says hi and that the V is kicking ass...

  8. #7
    TMC CL65 is offline Cadillac Owners Fanatic
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    Re: Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    What are you guys dynoing with the 10% pulley and tune?

    Tom

  9. #8
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    Re: Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    Kirk,

    I had the LPE SC pulley upgrade with Air box mod and solid isolator. I then went to a lower 8.5 pulley.

    You'll be happy.

  10. #9
    Kirk3 is offline Cadillac Owners Member
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    Re: Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    Glad to hear such positive feedback, I am also curious as to what HP some of you are sitting at with the pulley upgrades, and if you could also list any other mods you have so I can get an idea of where I will be sitting when everything is done.

    Thanks,

    K3

  11. #10
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    Re: Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    This was on a Dynapack which runs the dyno directly to the driven hubs. So there is no drivetrain loss due to wheels and tires, and thus, a typically higher number. It's easy to misread this dyno graph because the tq and hp #s don't line up in a linear fashion...










  12. #11
    Titaniumseeker is offline Performance Enthusiast
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    Re: Anyone installed the LPE harmonic balancer and 5% or 10% overdrive pulley?

    Quote Originally Posted by thebigjimsho View Post
    Awesome! Tell John Big Jim says hi and that the V is kicking ass...
    Yes, he mentioned your beast when we spoke yesterday. I will be picking my V up tomorrow.

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