Thank You AZkfx. I am downloading now. Blacksunshine - I will let you know what I come up with.
In the meantime I will do some testing with the DASA FCI one from AZkfx. I am also creating a Frankenstein of sorts. I found a stage 3 "map" (stage 3 hotcam M226-019). I took the one called "crazytune" and installed it initially (not sure the member that posted).
Crazytune worked great up to mid-mid rpms. Actually pulled better than ever then it got lean mid-high rpms. I figured this was due to stage 3 cam having the power curve shifted towards higher rpms? Nonetheless, the one that I will try Saturday morning is a hybrid of M226-019 and crazytune. I copied both tables to excel and for rpms over 6000 asked excel for the maximum value for each. Essentially, I am taking the richer suggestions from each table and creating a new table above 6000 rpm. We will see.
I will go ahead and compare this to the Azkfx option (thanks again).
A bit more history and one more question. When I got the KFX I suffered from the honda 450r trx blues. Essentially I had a trx450r before the KFX. What I missed was that low-mid punch that would pull you out of the hole and make you wet yourself. My Kawasaki (until recently) never felt that way. The Kawi pulled like hell uptop so I adjusted my riding style until finally I liked it better than the Honda. Only took 6 months. Then coming into the summer the damn thing got lean on me. I fiddles with the 3 buttons on the HMF Optimizer for too long...Eventually when the temperature got above 90 degrees the Kawi developed a miss between mid-high rpms that I couldn't get rid of. Thus, I installed the PCIII (after checking all wiring harness, changing plugs, checking sensors, etc). Viola - the miss is gone (although the top is sickly lean now) but the bottom end with the "crazytune" kicks the Honda's ass! Have learn to ride like that again...but I want the best of both worlds!
I was mistaken about the intake. It is actually a UM style aluminum box like this one:
ATV Parts & Quad Parts - Performance ATV & Aftermarket Quad Parts
One thing I noticed this weekend was the aluminum air box get hotter than hell next to the exhaust. And...the air temp sensor is mounted on the exhaust side of this box (right in the heat). What I noticed is the hotter the atv got during th testing the leaner the machine was running. My little brain is pointing to this sensor...In my strange assessment once this sensor gets hot it should tell the ecu to put in less fuel. This would make it even leaner, the pipe even hotter, the sensor even hotter, and less fuel. It is a nasty cycle that is playing out in my brain.
In addition to the 2 maps I am going to experiment with above, I am also going to attempt to move this sensor to a cooler or more representative area and wrap the exhaust next to the airbox. I will let the group know.
Closed loop EFI and fuel-air monitoring:
Has anyone in the group tried to get anything that would read the air/fuel combustion readings from the exhaust? I was thinking if one could install a small device that could read rpms and the burn data from the exhaust (and one could also input the throttle position) - a man could get a good feel for the tune while riding. Essentially you could go ride, come home and download from this small device the data to see if one was lean or rich at any throttle or rpm position...then open the PCIII table and change said value until finally the machine was dialed in. This would be like your personal Dyna tune (considering there must be other areas of the world that don't Dyna quads). Just a question??? If anyone knows of such a sensor I may be up for building one of these little black boxes.
I suppose if one went that far, has anyone built a closed loop EFI system that would then feed this back to the EFI controller (real time constant calibration). Are there any systems that do this on the market?
Thanks and I will keep the group updated. Also, thanks for welcoming me to the group.
Yoshimura RS 2 full exhaust
Linear Mode
