Meeting 90dB Noise with GT350/R

Discussion in 'Drivetrain, Exhaust and Electrical' started by Black Boss, Aug 2, 2017.

  1. steveespo

    steveespo Lord knows I'm a Voodoo Child Moderator

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    I will order the pigtails. Thanks Rick.


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  2. steveespo

    steveespo Lord knows I'm a Voodoo Child Moderator

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    Order placed $27 from Tasca Ford.


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  3. xXANCHORMONXx

    xXANCHORMONXx TMO Intermediate

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    FYI guys, with the grimspeed plug you can have the valves stay open.

    Simply have the car run, open the valves and then unplug the two harnesses.

    Turn the car off and install the plugs and now they will stay open.
     
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  4. VoodooBoss

    VoodooBoss Rick Moderator

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    I discovered this by accident but didn’t test it in a long term basis. Will they stay open permanently?
     
  5. DocWalt

    DocWalt TMO Advanced

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    They should stay open permanently, yes.
     
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  6. xXANCHORMONXx

    xXANCHORMONXx TMO Intermediate

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    Yessir
     
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  7. rgator

    rgator TMO Intermediate

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    Has anyone tested the grimspeed plug on the track and was there any adverse effect on car performance, I have an opportunity to go to mt tremblanc but they have a 92dbA limit at 50 ft and if there is no issue at full throttle I can confirm, my attendance.
     
  8. VoodooBoss

    VoodooBoss Rick Moderator

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    Yes they work on track. That’s the whole point of this thread. :)
     
  9. TMSBOSS

    TMSBOSS TMO Addict

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    Curious. Is it possible to toggle the exhaust setting manually while driving?
    Add a switch and extension to the mix and open exhaust as desired?
     
  10. rgator

    rgator TMO Intermediate

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    Sorry I think I asked the question incorrectly, I would like to know if the car with the baffles closed performs OK with the extra back pressure, is the computer adjusting OK or does the car run a little choked or any other symptoms with baffles closed and in track mode with wide open throttle.
     
  11. VoodooBoss

    VoodooBoss Rick Moderator

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    They work but I wouldn't be surprised if the computer is pulling some power. I'm sure Ford would not recommend doing this. My car ran fine but maybe not as free revving as normal. Remember even with the valves switched off (closed) under normal conditions the valves open at WOT and above a specific RPM.
     
  12. RaiderJatt02

    RaiderJatt02 TMO Intermediate

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    I posted in the other thread but figured it would make sense here too. I like the AWE SwitchPath method better than the Grimmspeed modules because you don't have to keep plugging/unplugging anything. Just open and close at the press of a button. No CEL here either. It's more expensive but MUCH more convenient. This way you only need to keep them closed for a short amount of time every lap while you pass the sound booth. I didn't want anything that will keep them shut the entire session just in case there's a durability/tuning reason Ford forces the exhaust open at WOT. If there was a durability reason for it, it shouldn't hurt if you force them shut for a couple seconds every lap. Seems like a safer solution than forcing them shut the entire time.

     
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