Dobeck Performance "tfi-1025" Efi Tuner For The Tdm900

[arthurbikemad]

Interesting box of tricks, I'm always wary of such devices after I smashed a so called EFI tuning box open to find the pots and dip switches had no PCB the wires went no where only in and out of an epoxy box with switches and dials! anyway that was nothing to do with this unit, how do you meter your AFR and test the unit? I've read many reports of dash O2 settings and talk of the oem Lambda sensor, out of interest how does the stock sensor do much in the way of correcting AFR as its the most basic Narrow sensor on the market I'm surprised it can read any AFR at all? unlike a Wideband sensor? I fitted some pipes to my 900 and it seemed to loose a lot of midrange power as you would expect with stock fueling I added plus 10 to each c1 and c2 and power is much improved, I don't want to add a PC3 and map for missing midrange however since I added to c1/2 it's much better also its interesting how many threads say the TDM is rich after adding pipes etc? sorry for the data blast post just interested in some of your views... I don't see how you can test AFR with no meter and tune with no dyno, best AFR like 13.2:1 does not always make best power as we all know so how do you know if your lean or rich? also a lean motor always feels strong on the road etc?