Guest supragt45 Posted July 26, 2016 Share Posted July 26, 2016 (edited) Is anyone using a fuel management unit or fuel pressure regulator instead of a fuel cut defender on their j-specs mkiv? Edited July 29, 2016 by Gaz6002 (see edit history) Quote Link to comment Share on other sites More sharing options...
np89 Posted July 26, 2016 Share Posted July 26, 2016 Lol not one of those things is related or interchangeable. Literally comparing apples oranges and pears in the same sentence. What is it you actually need to know? Quote Link to comment Share on other sites More sharing options...
Guest supragt45 Posted July 28, 2016 Share Posted July 28, 2016 How to avoid fuel cut on high boost Quote Link to comment Share on other sites More sharing options...
Guest supragt45 Posted July 28, 2016 Share Posted July 28, 2016 How to avoid fuel cut on high boost? Quote Link to comment Share on other sites More sharing options...
robby a Posted July 28, 2016 Share Posted July 28, 2016 Fit a fuel cut defender. Fcd Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted July 28, 2016 Share Posted July 28, 2016 http://www.mkivsupra.net/vbb/showthread.php?35932-Fuel-Cut Quote Link to comment Share on other sites More sharing options...
The Raven Posted July 28, 2016 Share Posted July 28, 2016 Buy a fuel cut defender. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 28, 2016 Share Posted July 28, 2016 http://www.mkivsupra.net/vbb/showthread.php?335173-Top-quality-precision-FCD-s-(Fuel-Cut-Defenders)-for-sale&highlight=fuel+cut+defender Quote Link to comment Share on other sites More sharing options...
Wez Posted July 28, 2016 Share Posted July 28, 2016 How much boost are planning on running and is this on stock turbos? Quote Link to comment Share on other sites More sharing options...
Guest supragt45 Posted July 29, 2016 Share Posted July 29, 2016 Heard it doesn't work on Japanese imports? J specs need manual installations like external pump larger injectors depending on upgrade and fuel pressure regulator? Is that nonsense and I can just go with fcd? Quote Link to comment Share on other sites More sharing options...
Guest supragt45 Posted July 29, 2016 Share Posted July 29, 2016 Hi Chris,thanks...Im looking at 500hp on 10-12psi on a single turbo 1.05 A/R -0.66 A/R . Before my upgrade,with my stock twins boost would cut on 16psi. Thought an fcd would do the trick but heard they don't work on j-specs. I'm looking at an hks fcd about $116 Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted July 29, 2016 Share Posted July 29, 2016 So you're running a single turbo on stock management? Quote Link to comment Share on other sites More sharing options...
mellonman Posted July 29, 2016 Share Posted July 29, 2016 To be fair if you was running stock ecu on a single turbo at 10-12psi you shouldnt hit boost cut,and if you did it may have just saved your engine, you need a ecu to adjust fueling and timing to run a sigle turbo correctly ... If not det / knock could be happening grenading your engine Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted July 29, 2016 Share Posted July 29, 2016 I think you need to go and do some reading up on the subject and not take notice of what others who know nothing say. Quote Link to comment Share on other sites More sharing options...
Guest supragt45 Posted July 29, 2016 Share Posted July 29, 2016 @j_jza80 not yet have just began the upgrade...stock ecu,stock injectors,fuel pump Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted July 29, 2016 Share Posted July 29, 2016 I've merged both of your threads and given this thread a better title. If you say what your issue is in the title you'll get more help, and people searching for the same issue will be able to find it too. Search sounds like something that would help you in this case good luck! Quote Link to comment Share on other sites More sharing options...
Guest supragt45 Posted July 29, 2016 Share Posted July 29, 2016 @mellonman . Definitely. need an ecu. I'll look into this .still in process of mods to new turbo and all Quote Link to comment Share on other sites More sharing options...
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