there was talk about this, although is 125rpm incriments required? and how much longer would it take to tune?
You tell me, It all depends what you're goals are. For a low power low boost turbo or super setup you might get away with it, but if you're going to big power where there's lots of danger then the fine tuning it provides is crucial. THe engine VE is not linear and 500rpm is quite a big gap to have a straight line interpolation in between. Would you rather look at analogue TV or HD digital? So would your engine.
Regarding tuning, it would take longer to tune only if you ask them to tune it to that accuracy - which you would want to if you wanted to make big power and have efficiency and reliability. But with the wolf you can choose the resolution the map shows and can interpolate it, you can go 125, 250, 500 and 1000 rpm if you want, from memory. But the bigger the gap the rougher the tune (rough as in fuel and spark delivery, so it might go rich and not have the optimum timing for certain rpm points and waste fuel, or it could go lean and too advanced and blow your engine up, its a compromise).
Good thing with the wolf is, you can tune to the 500rpm on the not so used parts of the map and then tune it to 125rpm for WOT where it counts.
Anyway for most of the things we are concerned with it shouldn't pose a problem.
One thing I don't like about the whole \"adapting\" closed loop control is that for it to go \"Oh I need more fuel, put some in\" the fuel AFR has to be wrong in the first place, and that means a not optimal fuel delivery for the split second that it senses it, and split seconds in engines are a lifetime, so its like a band aid for not tuning it properly in the first place, mods that you add will need to be retuned or else you could wreck something or not get any benefits out of it. The factory ECU goes very rich at wot to give room for mods that people put on such as exhausts and intakes that all increase the air flow and fuel that is needed. If you change something to make it breathe better the engine with a perfectly tuned ecu you could go lean and blow it up, depending what sensor you use. Closed loop shouldn't be used to add fuel, only subtract. Any ECU tuning book will tell you that. So unless you can afford a $5000 magneti marelli or motec ECU then I wouldn't be stuffing around with closed loop at WOT.
Wolf website is here if you want to compare specs.
http://www.wolfems.com.au/My 2c
