KamaSupra Posted June 20, 2019 Share Posted June 20, 2019 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 won’t fit it until I have a fuel cut defender if it’s going to cause any issues. It’s a Jspec TT, thanks!! Quote Link to comment Share on other sites More sharing options...
tayr Posted June 20, 2019 Share Posted June 20, 2019 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 Quote Link to comment Share on other sites More sharing options...
mattdavies Posted June 21, 2019 Share Posted June 21, 2019 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 Quote Link to comment Share on other sites More sharing options...
rider Posted June 21, 2019 Share Posted June 21, 2019 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. Quote Link to comment Share on other sites More sharing options...
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