XB9 dyno

Buellxb Forum

Help Support Buellxb Forum:

natural

Member
Joined
Mar 31, 2011
Messages
11
Hi there

Took my XB9 to the dyno on monday and here are the results.

The bike is 2006 with Force pipe (GenII), K&N open airbox and catch can. I have an Innovate MTX-L wideband installed and have done the mapping based on readings.

graficot.jpg


tablaof.jpg


Notice the AFR graph mostly of the time above 18 int the first picture. These readings were taken with a Lamda sensor sniffed into the megaphone. Those readings are completelly different from the readings from the sensor. According to my sensor, it is running too rich, I would read 10's and 11's during the test ( WOT from 3000 on )

All the exhaust parts are properly assembled with springs and exhaust paste in the joints. Does not seem to leak, no traces of smoke there. Saw no improvement when going to max values in the top cells of the map from 3400 on.

Here is the map used in the first pull.

24242055.jpg


(F & R are the same by now)

I am suspecting that the readings taken with the dyno sensor make no sense... way too different from the readings on my sensor. However, I swaped stock injectors with 60 lbs units after the test, scaled the maps and noticed it was even richer.

The numbers are good, the bike is plenty of power, however I would like to get rid of that torque dip between 5k and 6k.

Does any one have experience with this exhaust?

Thanks and regards!
 

Latest posts

Back
Top