MrRalphMan Posted April 7, 2006 Share Posted April 7, 2006 Morning.. Another numpty question from me. If I'm BPU, do I need the SAFC that's fitted to the car? Did some searching last night, but couldn't find the answer. Also couldn't find the 'safe' readings for the AFL reading. Any help would be wonderful. Quote Link to comment Share on other sites More sharing options...
Scoboblio Posted April 7, 2006 Share Posted April 7, 2006 Wouldn't have thought so if you still have the standard injectors, especially since you already have a boost controller. I think that the standard approach is to install a SAFC to trim back larger injectors than standard. That said a few people have seen benefits from a remappable piggyback on BPU just to tidy things up, apparantly the standard ECU can't map beyond 1bar. So in short, don't think you need it, but might see a benefit / safer fueling at 1.2bar. Sure someone will be along soon to prove me wrong Quote Link to comment Share on other sites More sharing options...
wkdtime Posted April 7, 2006 Share Posted April 7, 2006 Pretty much what i would have said, piggy back on j spec would be advisable if running 1.2 bar but not mandatory. One thing i would get is Air/Fuel ratio gauge. Quote Link to comment Share on other sites More sharing options...
JohnA Posted April 7, 2006 Share Posted April 7, 2006 ...If I'm BPU, do I need the SAFC that's fitted to the car?. You don't *need* it, but if you fit it and adjust it with a wideband you can get an extra 20-30bhp between 4K and 6.5Krpm:) Yours is a UKSpec remember, so fuelling capacity is 20% higher from the factory. Your ECU really dumps fuel by the bucketload over 4Krpm. Quote Link to comment Share on other sites More sharing options...
michael Posted April 7, 2006 Share Posted April 7, 2006 I have an SAFC II on my car at BPU levels - took it to Thor for a setup at 1.2 bar and they said they couldn't do much with it as I needed *more* fuel. Seemed very odd to me as I was expecting them to take some out as John has mentioned above. Since it was 'setup' I've had more lag low down and decreased fuel economy. The moral of the story is that it will be of benefit but be careful who sets it up Quote Link to comment Share on other sites More sharing options...
JohnA Posted April 7, 2006 Share Posted April 7, 2006 If you don't trust anyone around you to do it properly and you don't feel confident to DIY, then best leave it alone. Running very rich under those conditions won't hurt anything really, and the power hike is not very noticeable in the grand scheme of things. Most of the time you're in closed-loop mode anyway, and that should be left untouched by the SAFC. Quote Link to comment Share on other sites More sharing options...
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