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Thread: Custom Exhaust and heat shield

  1. #1
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    Default Custom Exhaust and heat shield

    Hi all,
    Haven't been on here for a while, but did get a chance to meet a few of the locals. I had the honor of working on this M12 and made a couple of these exhausts that have been sold already.



    Also a custom preformed heat shield on both turbos.



    Feel free to PM me if you have any questions.

    Thanks,
    Last edited by Hoover; 08-20-2006 at 05:04 PM.
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  2. #2

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    How much for the exhaust?

    I would guess that you would have to Dyno it after to adjust the fuel with a adjustable fuel pressure regulator.

    Do you have a copy of any gains on the Dyno?

  3. #3
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    Quote Originally Posted by sstarkey
    How much for the exhaust?

    I would guess that you would have to Dyno it after to adjust the fuel with a adjustable fuel pressure regulator.

    Do you have a copy of any gains on the Dyno?
    I've PM'd you.

    I will have one shortly, but there are a lot of little issues that need attention before I'm going to test for hp. I just want the car to run well and reliably, then run fast.

    The M12 I have is a very early version. The a/f reading was below 10:1 in the mid. rpm range with the stock exhaust system. Atleast there's a ton fuel in there. Idle is also very akward, but a little tweaking and it idles very well now.
    Factory Noble Software
    Noble M400 SCCA GT-1 Podium 2014

    www.Noble-Speed.com

    TurboHoses R&D
    Noble, Rossion and Lotus Performance
    http://www.turbohoses.com/Nobleperformance.htm

    Hooverc@TurboHoses.com
    925-455-1066
    Livermore CA.

    www.OriginSportsCars.com
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  4. #4

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    Is that 3" piping?

    Does it attach all the way up at the front turbo?
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    Quote Originally Posted by OnyxM400
    Is that 3" piping?

    Does it attach all the way up at the front turbo?
    If you mean back of the turbo or turbine housing then yes.
    It is a full 3" system.
    It took about 40 hours to make this one.
    Fitting the piping was very tedious due to the tight tolerances.
    Last edited by Hoover; 08-22-2006 at 11:18 PM.
    Factory Noble Software
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    www.OriginSportsCars.com
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  6. #6
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    Here's a closeup of the welds.
    Factory Noble Software
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  7. #7
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    Quote Originally Posted by m0nitor
    Hoover... Do you make your 3" exhaust as a bolt on for the M400 or do you need the car for custom fitting?

    Weld looks good, what metal options do you have?
    At this point, I am only making proto-types and really have nothing for sale. I'm just a fabricator and can estimate what it would cost to make another exhaust.
    There are little things that make each different from what I've noticed from the few I've had already.
    Hopefully,Joel can come by today and I can look at his M12 and compare it to this one.

    I'm only using stainless right now.
    Last edited by Hoover; 08-22-2006 at 11:21 PM.
    Factory Noble Software
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    Livermore CA.

    www.OriginSportsCars.com
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    I've had a few folks ask me about the heatshield and what makes them so different than any other heat shield.

    The heat shields are made of silicone wrapped in inconel.
    The are very form fitted. This acts as an insulator which keeps the thermal energy inside the housing therefore reducing spool time. The heat shields are rated to 2200 dg. F.
    I'll have some pics. of another m12 that have shields on the cats as well.
    Factory Noble Software
    Noble M400 SCCA GT-1 Podium 2014

    www.Noble-Speed.com

    TurboHoses R&D
    Noble, Rossion and Lotus Performance
    http://www.turbohoses.com/Nobleperformance.htm

    Hooverc@TurboHoses.com
    925-455-1066
    Livermore CA.

    www.OriginSportsCars.com
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  9. #9
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    Quote Originally Posted by Hoover
    I've had a few folks ask me about the heatshield and what makes them so different than any other heat shield.

    The heat shields are made of silicone wrapped in inconel.
    The are very form fitted. This acts as an insulator which keeps the thermal energy inside the housing therefore reducing spool time. The heat shields are rated to 2200 dg. F.
    I'll have some pics. of another m12 that have shields on the cats as well.
    If the heat is contained inside the turbo housing and not allowed to dissipate, what does that do to the oil temperature that flows through the turbos and back to the engine? What effect would it have on the longevity of the turbos? It would seem that a water cooled turbo and good oil cooler would be a necessity for such a setup. Only the M400 comes with both AFIK. Might not be a good idea for the M12? Anyone have any experience with this?

  10. #10
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    Quote Originally Posted by caccobra
    If the heat is contained inside the turbo housing and not allowed to dissipate, what does that do to the oil temperature that flows through the turbos and back to the engine? What effect would it have on the longevity of the turbos? It would seem that a water cooled turbo and good oil cooler would be a necessity for such a setup. Only the M400 comes with both AFIK. Might not be a good idea for the M12? Anyone have any experience with this?
    Good point!
    I believe all the GT series turbos have provisions for being watercooled.
    All you would need are the fittings and you could retrofit it yourself.
    The turbos will last much longer.
    Last edited by Hoover; 08-21-2006 at 11:30 AM.
    Factory Noble Software
    Noble M400 SCCA GT-1 Podium 2014

    www.Noble-Speed.com

    TurboHoses R&D
    Noble, Rossion and Lotus Performance
    http://www.turbohoses.com/Nobleperformance.htm

    Hooverc@TurboHoses.com
    925-455-1066
    Livermore CA.

    www.OriginSportsCars.com
    HVR & Origin N

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