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2004-2007 Cadillac CTS-V Performance Mods Discussion, Twin Turbo Kit for V1 in Cadillac CTS-V Series Forum - 2004 - 2007; Originally Posted by NC-V There are only two spots on the V1's where you could put a "bolt on" TT ...
  1. #106
    rand49er's Avatar
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    Re: Twin Turbo Kit for V1

    Quote Originally Posted by NC-V View Post
    There are only two spots on the V1's where you could put a "bolt on" TT kit, they are in the factory cat location or the factory muffler location. Any other spot under the car and you will not have ground clearance, and to do anything in the engine bay would require wayy too much modification to be "bolt on".

    Pretty much any of the long tube headers out there I have seen terminate too close to the floor area under the car to mount a turbo and each manufacturer would require different length piping and attachment... again, not really feasible to build a bolt-on kit for headers.

    My thoughts on a bolt on turbo kit: Design the base kit around a safe power/boost level for a factory motor (~6-9 psi), and let people modify from there as they wish. Use the factory cat location with factory manifolds. Supply all hot and cold pipes (to mate to factory exhaust location), valves, cooler, oil supply/return, turbos, etc. as a "tuner" kit. Then with enough interest, also offer it as a complete kit with injectors, BAP or replacement pump and handheld tuner as a complete kit for the consumer in their garage (obviously this would require a large enough market to go this far).

    Twins typically require more R&D than a supercharger setup, but also have more flexibility in terms of power, so expect it to be priced accordingly. Good luck with this, I will be watching intently.
    One of the most rational posts in this thread thus far, IMHO.
    lollygagger8 likes this.
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  2. #107
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    Re: Twin Turbo Kit for V1

    ^^^yeah, I agree. My post is coming from a DIY enthusiast and mechanically inclined.

    I stopped by my local speedshop and discussed this kit. I believe he made some calls to LG jr for some basic info on the kit. Anyways, with a goal of 600-650whp on a stock block was more than a little risky was the feedback. They tune 5psi on a stock LS1/LS6 block. Spit-balling hp vs boost numbers...it is roughly 24whp for every 1psi boost.


    IF 5psi makes 500whp then doing the math says 9psi will bring you into the 600whp range. Based on these assumptions, the block has to be yanked and built to handle that kinda boost. The fueling is the other issue. There are tons of threads on fueling issues getting past 550whp. A return line would be needed along with larger fuel pump(s) and wiring etc.

    Upgrading the fuel system is within my DIY talent but yanking the block and building it is a learning curve for me. When my speedshop was informing me of what is required to give that kind of power reliably and the basic cost they charge...I was like phuuuuuuuck thaaaaat! In order to bring the cost significantly down, I gotta keep this DIY. I'm only on day 2 of researching how to yank and build an LS6 with a Chris Werner hand book. All I can say is I got 4-5 months to figure it out and get it done myself.

    I spoke with the shop tech who does most of the yanking and installing of engines etc. His advice was to go with a different block...LSX. I think his reasoning was because GM doesn't make the LS6 anymore...

  3. #108
    TimmyC is offline Cadillac Owners Connoisseur
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    Re: Twin Turbo Kit for V1

    The LS6 block will easily handle 600rwhp. There is no need for a $2000 iron block at that level.

    Return style fuel system isn't required either. My STS-V had no trouble at 575rwhp with the same fuel system as in the CTS-V1. I'm not sure if the pump is the same though. I was using the stock pump with a BAP on it.

    Don't over-think this. If any stock part is not up to the task you can turn the boost down till you get time and funds to upgrade it.
    lollygagger8 likes this.

  4. #109
    Jsmitty02z28 is offline Cadillac Owners Member
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    Quote Originally Posted by philistine View Post
    ^^^yeah, I agree. My post is coming from a DIY enthusiast and mechanically inclined.

    I stopped by my local speedshop and discussed this kit. I believe he made some calls to LG jr for some basic info on the kit. Anyways, with a goal of 600-650whp on a stock block was more than a little risky was the feedback. They tune 5psi on a stock LS1/LS6 block. Spit-balling hp vs boost numbers...it is roughly 24whp for every 1psi boost.


    IF 5psi makes 500whp then doing the math says 9psi will bring you into the 600whp range. Based on these assumptions, the block has to be yanked and built to handle that kinda boost. The fueling is the other issue. There are tons of threads on fueling issues getting past 550whp. A return line would be needed along with larger fuel pump(s) and wiring etc.

    Upgrading the fuel system is within my DIY talent but yanking the block and building it is a learning curve for me. When my speedshop was informing me of what is required to give that kind of power reliably and the basic cost they charge...I was like phuuuuuuuck thaaaaat! In order to bring the cost significantly down, I gotta keep this DIY. I'm only on day 2 of researching how to yank and build an LS6 with a Chris Werner hand book. All I can say is I got 4-5 months to figure it out and get it done myself.

    I spoke with the shop tech who does most of the yanking and installing of engines etc. His advice was to go with a different block...LSX. I think his reasoning was because GM doesn't make the LS6 anymore...
    I believe you are referring to SpeedSouth. Yes they called Anthony and was Informed that Louis is more than capable of producing this kit. Stock LS6 will handle the horsepower no problem. That's a shop trying to get an extra dollar out of you. I worked with SpeedSouth in fact I use to ship to them on a regular basis.

    Thanks for the feedback


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  5. #110
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    Re: Twin Turbo Kit for V1

    Quote Originally Posted by Jsmitty02z28 View Post
    I believe you are referring to SpeedSouth. Yes they called Anthony and was Informed that Louis is more than capable of producing this kit. Stock LS6 will handle the horsepower no problem. That's a shop trying to get an extra dollar out of you. I worked with SpeedSouth in fact I use to ship to them on a regular basis.

    Thanks for the feedback
    Yep that's the shop. I pressed the issue with Jim on the reliability sustaining that power. From there it just kinda went into discussing motor builds. So many of their customers put a ton of wear and tear at the strip and track. Regarding the TT kit, yeah he pretty much said it should be a quality kit. I'll just focus on the rear-end, clutch, and valve train for now. That should keep me busy for a few weekends.

    Thanks!

  6. #111
    Jsmitty02z28 is offline Cadillac Owners Member
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    I know by the high volume of race parts that they were big into the racing scene in fact I delivered a motor and carbon fiber fenders to them last march for a race car they were taking to the track. It's a nice shop.


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  7. #112
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    Re: Twin Turbo Kit for V1

    While you guys are great at fab work...I would love to see a fuel kit as an add-on. On my little s2k, I used a Fullblown 340lph (super quiet) fuel pump with ID1000cc injectors and my injector duty was 66% WOT with a FPR set at 50psi connected to a vacuum line. No boost spark or BAP crap.

    I don't mind rewiring and running new lines. A dual pump hangar, drop in tank kit would be really nice. Just a FYI... I ran out of fuel using a 255 Walbro and RC750cc on the 4-banger at 25psi boost making a tad over 500whp.

    I don't expect the TT kit to include such an elaborate fuel system but possibly consider it as an add-on.

  8. #113
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    I agree BAP is just a band aid. A good kit should call out using larger injectors and fuel pump, or you should expect to do those things with the install. Also I've seen tt ls2 gtos make we'll over 12 psi on a stock motor when the fuel and tune are done right. These motors can take the boost.... The rest of the drive train might not like it so much

  9. #114
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    Re: Twin Turbo Kit for V1

    If this kit takes off, Max can expect to sell a lot more 8.8 kits...
    MotorMounts and RyRidesMotoX like this.

  10. #115
    Jsmitty02z28 is offline Cadillac Owners Member
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    The count down starts 30 days till we start this kit.

    Thanks guys for the feedback

    Jason


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  11. #116
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    Re: Twin Turbo Kit for V1

    Quote Originally Posted by HAMSTAR View Post
    If this kit takes off, Max can expect to sell a lot more 8.8 kits...
    Well, he just got a purchase from me. That along with a new clutch should unlock some fun.

  12. #117
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    Is this still in the works?

  13. #118
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    Re: Twin Turbo Kit for V1

    Quote Originally Posted by Jsmitty02z28 View Post
    The count down starts 30 days till we start this kit ...
    Quote Originally Posted by H-town_V View Post
    Is this still in the works?
    They start this Wednesday. Two more days.
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  14. #119
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    Re: Twin Turbo Kit for V1

    I want pics, and prices. I'd be up for this instead of a Procharger if it's a legit kit and priced well.

    LS6's will take 600HP all day everyday. I'll be the guinea pig and try it out. I ain't scuuurrred.

    ----------

    Quote Originally Posted by Jsmitty02z28 View Post
    These are people that expressed interest so far. Thanks guys.

    Philistine
    Ny's Caddy
    Rand49er
    CTS-V_07
    Onebadcaddie
    Hamstar

    Aftermarket headers
    Manofmetal01
    DMM


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    Add me to the list

  15. #120
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    Re: Twin Turbo Kit for V1

    I believe by "start" he means begin measurements, fabrication, and testing. I'm guessing it would take 3-4 months before any kits start rolling out. It would make one hell of a x-mas stocking stuffer!
    rand49er likes this.

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