Chief,
I'll be sure to do that. That's another item on the "to do" list for the forum when I get my bike back from the shop.
Thanks for great explanation, between Twolane's and yours I have a pretty good understanding of the benefits. I didn't know that with that setup you can basically skip the dyno and let these units do the tuning. Me thinks I may have to put that on my list of "want to haves". (like that isn't already a mile long
)
Cheers [smiley=xyxthumbs.gif]
Red
I hope I didn't confuse things, but in case I did, let me attempt to clear things up a bit.
As far as I know, there are only 3 automatic units out there, Zippers Auto-tune, Daytona Twin-Tec and the Terry's unit. The Zippers unit seems to have the advantage right now at being the simplest to use and from what I have heard, the users are getting good results.
The unit I have ordered, is not an auto tuning unit, but merely an exhaust gas analyzer that will give me A/F ratios that I can use to help me adjust the PC manually. Now, the unit will give me the information in nice pretty grids of throttle position and RPM just like the grids that are used for adjusting the PC. For the SERT, a different grid is used that matches the input for the SERT.
In principal, the unit records the A/F ratio as you are riding and builds a "MAP" showing the recorded A/F ratios at different throttle / RPM settings. The data is then downloaded from the unit onto a laptop and then the resulting map can be reviewed.
By reviewing the A/F map on the computer, I will be able to see where the bike is running lean, rich, or right on. Using that information, I will be able to add, subtract or leave alone the fuel being sent to the motor at the specific RPM / Throttle settings. I will make adjustments to the fuel map, upload it to the Power Commander, or SERT, and then go ride again to check the result. This process would probably have to be repeated a couple of times, especially until I can get a feel for how much fuel it takes to bump AFR a certain amount.
Sounds simple huh? The problem with this process, and what takes a lot of time, is getting enough data to build a good AFR map. Its easier on the dyno because the operator can set a constant speed on the dyno and then move the throttle keeping the RPM constant. This is harder to do while riding the bike.
Maybe I need to harness the bike to the front of the truck and use the truck to set the speed and let me ride the bike to work the throttle. Does anyone see a problem with that? [smiley=worthless.gif]
I hope this long-winded explanation cleared up any confusion my earlier post may have created.
Chief