Mad Ad Posted December 21, 2003 Share Posted December 21, 2003 Just wondering. If I purchase a Blitz Dual SBC spec-s boost controller would I still need to fit an FCD as they claim that you can set a boost limit with the controller. So if I set a limit would my car still fuel cut? Link to comment Share on other sites More sharing options...
TLicense Posted December 21, 2003 Share Posted December 21, 2003 Yes you would still need an FCD. With the boost controller you have the ability to raise the boost past the limit's of the ECU and fuel map's. Go too far and you can blow the engine to bits. To save the engine the ECU has "fuel cut" which is set at a boos limit that in stock form you should never actually meet. The FCD effectively allows you to adjust this limit. Link to comment Share on other sites More sharing options...
Mad Ad Posted December 21, 2003 Author Share Posted December 21, 2003 I understand that raising the boost with the controller will initiate fuel cut but what if I retard the boost with the controller? Link to comment Share on other sites More sharing options...
THOR Racing Posted December 21, 2003 Share Posted December 21, 2003 You can only go back to the mechanical minimum boost. i.e. your car will have a minimum boost that it will create and no boost controller can adjust below this (if this is what you mean by retarding boost?) So if you change your exhaust pipe and remove the CATs you may find you'll hit fuel cut. No boost controller will help you there! As for boost/fuel cut, it's simple. Boost >= threshold = Fuel Cut Boost No more complicated than that. The ideal is to be able to adjust the threshold..... which my VFCC does by the way Regards Pete Link to comment Share on other sites More sharing options...
Mad Ad Posted December 21, 2003 Author Share Posted December 21, 2003 Which is why I shall be purchasing one in the new year then Pete. (I may need a bit of help adjusting the settings thou!). Link to comment Share on other sites More sharing options...
THOR Racing Posted December 21, 2003 Share Posted December 21, 2003 The VFCC comes preset for Supras. So you shouldn't have to touch anything. The boost controller obvioulsy needs tuning properly. Pete Link to comment Share on other sites More sharing options...
Mad Ad Posted December 22, 2003 Author Share Posted December 22, 2003 Excellent. That's a worry off my mind then as I'm crap with electrics! Cheers for your help guys. Link to comment Share on other sites More sharing options...
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