autoteach said:
has anyone done AFR's with the switch mod dyno maps?
Yes, not every gear and every throttle opening, but 2nd and 5th WOT runs revealed stock the bike runs slightly weak at the bottom end and slightly rich at the top end, with the CJM it runs equally rich all the way.
As to cat harm this is very inconclusive as you really would need to compare many throttle openings, but on my runs you could see the bike was running weak until around 4.5k in stock trim, and then started getting richer up towards the redline (13:1 is about spot-on) With the CJM it runs the same up top (slightly rich) but also runs richer at lower revs.
Here is a graph of 3rd gear and 5th gear with the arrows (plus 3rd gear without CJM) the longer graph line is in 5th gear (plotted against road speed) and you can see the fuelling is quite good with the arrow headers nicely compensating for the richer running of the bike with the CJM - I suspect it would be very lean down low without the jumper.
Again this is only a WOT run and tells little about fuelling at other throttel settings, but what it does do is surge at low throttle openings which is a sign of running weak, this suggests it is still using the closed loop area as opposed to running richer with the CJM at low throttle openings.