Hello All, first off - I like reading these threads and appreciate all the information that folks post so I thought I might be able to help with some of the long running debates on here. This is regarding the XiED fuel management system. I got an app for my phone that lets me upload the diagnostic information from the ECU and did a couple test runs.

First run on a Stage 1 96”: http://myappdata.com/#rpmitup/post/5...b00cfc4b21e4f0

and then with XiED attached: http://myappdata.com/#rpmitup/post/5...b00cfc4b21e4f2

I was going after testing the engine temps and fuel consumption. I tried to do the runs as close together as possible so weather and whatnot would be comparable. This is on the same bike we me doing both rides. I tried to keep my cruise control on and the speed right at 75 MPH as much as I could (there was a lot of road work) and didn’t do any hard acceleration. A couple of things I was surprised to find:

1) Engine Temps: Although it was probably 5-7 degrees warmer out with the XiED on the engine temp was actually just a tad warmer. I didn’t experience any reduced engine temperatures. Granted it wasn’t very warm out to begin with, but I was expecting to see at least a couple degrees difference.
2) MPG: This was actually pretty close in both runs. I was expecting the O2 resistors to cause more fuel consumption, maybe a 1-2 drop in MPG but without any hard acceleration it was pretty close.

Next up I am going to try the 0 – 60 time feature and see if there is really any difference with acceleration. More to follow…

 

Pretty cool info.. Lost hp tho.. Either it's not accurate or the stage 1 u did was restricted as hell

 

Welcome to the forum!

Just curious, what were you trying to find or accomplish with these test runs?

 

What app is that?

 

The app is RPMitUP.

I was trying to test fuel consumption and engine temps. If I get some time this weekend I'm going to try and test acceleration with the 0-60 time feature.

 

I wondered when someone would create a dynamic connection to the blue tooth in the new infotainment systems for analytic data.

 

I do not get the tests your doing....The XIED alters the AFR so that's the parameter I would be looking for - The rest is just noise!

 

Errrrr - so this is straight off the XiED website. 1st paragraph:

Don't let the Harley heat monster ruin your riding.
Reduced Engine and Exhaust Temperatures
Reduce Engine Surging
Improve Throttle Response
Less Engine Ping

I'm not seeing any reduced engine temps. Obviously this is done with the AFR being altered so I was also curious as to how much more gas was being used.

 

Miketimer, what cable are you using to adapt the ELM adapter?

(RPMitUp requires a compatible WIFI OBD / OBDII Wireless scanner along with a 16 to 4 pin ELM327 cable.)

Here is a video:

 

The benefits are ALL based upon the theory that the engine runs richer due to the tweaking that the Xieds do. you should at a minimum see slightly higher fuel consumption, although i would love to see the math the shows how many extra litres of fuel you use with a lower AFR than with the 14.7 - that would be interesting reading!