Tommyd16 Posted January 23, 2015 Share Posted January 23, 2015 Would it be beneficial to install an apexi neo piggy back fuel controller at BPU level? I've read that BPU supras run rich and it can be used to trim it down abit and squeeze some more horses out of her? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted January 23, 2015 Share Posted January 23, 2015 I wouldn't recommend just trimming the fuelling as the timing will also need tweaking, and AFAIK the neo can only use MAP or AFM voltage to achieve global fuelling adjustment so timing will also be affected, I would also presume that you would carry out any fuelling adjustments without the aid of a wide-band lambda setup? Quote Link to comment Share on other sites More sharing options...
Tommyd16 Posted January 23, 2015 Author Share Posted January 23, 2015 I have a aem afr gauge. It was just something I read on the US supra forum that a apexi afc is worth fitting. I would get someone to set it up properly on a dyno Quote Link to comment Share on other sites More sharing options...
Shane Posted January 24, 2015 Share Posted January 24, 2015 I wouldn't recommend just trimming the fuelling as the timing will also need tweaking, and AFAIK the neo can only use MAP or AFM voltage to achieve global fuelling adjustment so timing will also be affected, I would also presume that you would carry out any fuelling adjustments without the aid of a wide-band lambda setup? This is good advice. I sold both the safc2 and MAPECU piggybacks I had been playing with on my bpu and went with the ECU master DET3 piggy back that provides timing skew and a whole load of other features like data logging, launch etc, I have mine programmed to run my IC spray as well. When mine was mapped by Lyndon he needed to tweak the timing as well as the fuel and the proof was in the pudding so to speak. First time out I was in the 12s where as I had been stuck in the 13s for an age and just couldn't get better than 13.05 Now most of my runs are in the 12s and the car just feels so much better. OK it doesn't have a display like the neo, but you can hook it up to your laptop and that tells you so much more. Mine was mapped with a wideband though. These things cost less than a new neo and do so much more. The SAFCs are just that really, whereas the ECU master and Greddy piggybacks offer loads more features. http://www.ecumaster.co.uk/products/digital-ecu-tuner-3 Quote Link to comment Share on other sites More sharing options...
Tommyd16 Posted January 24, 2015 Author Share Posted January 24, 2015 Probly just save for syvecs and flappy paddles then Quote Link to comment Share on other sites More sharing options...
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