TURBO4LT Member 1,533 Member For: 23y 1m 1d Gender: Male Location: NSW Posted 16/04/10 02:19 AM Author Posted 16/04/10 02:19 AM FYI, when logging via the LM-2 on the street I see leaner AFR's than what I do on the dyno. I had initially set AFR's to 11.8 when tuning on the street, however when I jumped on the dyno I was seeing just over 11. I initially thought it was a loading difference between the dyno and street, however I went and logged load on the dyno and it's pretty much identical to what I'm seeing on the street. My boost does drop in the high rpm on the dyno compared to the street but that does not explain the mid RPM difference. After looking at some AFR data for different instruments the LM-2 did show leaner than actual AFR so it may just be a difference between instruments. Anyways just don't be alarmed if it's a little leaner than expected as you know you're working with a very good tune. Cheers and enjoy!edit....in saying power runs, I gather you're going on the dyno and not using your LM-2 AFR meter...whoops!!Funny that, last time I ran the car on the street with the LM-2 I actually got slightly richer readings than the ones I got on the Dyno although only just, Ill let you know how it goes if the rain stays away.
IH8TOADS Legacy Donating Member 3,618 Member For: 21y 2m 11d Gender: Male Location: OZ Posted 16/04/10 02:59 AM Posted 16/04/10 02:59 AM Interesting and good to know. At least your's are close! I did find the afr difference between boost levels less noticable on the street....but it was clearly evident on the dyno. Have fun :-)
blackflash Member 15 Member For: 20y 11m 23d Gender: Male Location: Perth Posted 10/08/11 05:57 AM Posted 10/08/11 05:57 AM Noice!!!! good old BA's
bjc Legacy Donating Member 2,823 Member For: 23y 15d Gender: Male Location: Townsville Posted 10/08/11 09:01 AM Posted 10/08/11 09:01 AM Your drunk aren't you!Stop Mining
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