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Thread: Double Decat Question

  1. #1
    Drive it like u nicked it Club Member KamaSupra's Avatar
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    Double Decat Question

    Hi,

    Going to fit a decat pipe tomorrow, so my Supra will be double decated with a 1 bar restrictor ring fitted.

    Will it need a fuel cut defender does anyone know or will it be ok as the restrictor ring is to 1 bar? I wonít fit it until I have a fuel cut defender if itís going to cause any issues.

    Itís a Jspec TT, thanks!!


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  2. #2
    Work... what work? Club Member tayr's Avatar
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    My understanding is that if it holds 1 bar for 3 continuous seconds it WILL hit fuel cut

    It is recommended to install the uprated fuel pump and cooler sparks too

  3. #3
    Me? Post? Never! Club Member mattdavies's Avatar
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    You may struggle with sustained motorway pulls with the RR ring, mine doesn't make 1 bar with the RR in.

    I would say you are ok with out the Fuel pump for 1 bar and below boost. I would however strongly recommend your future does involve a FCD, Fuel Pump and Boost controller as there is a noticeable difference between 1bar and 1.2bar
    1995 Silver BPU Auto - 1/4 Mile in 12.9secs @ 110mph

  4. #4
    Me? Post? Never! Club Member
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    With the MOT rules of if it was there at birth it needs to be there now I'm surprised people are still decatting their cars.

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