I have a set of headers that I welded in a bung fitting on each about 14 inches down stream of cylinders and before the catalytic converter of the stock pipes.
I used as a temporary set-up to tune my 07 America.
I used the Innovate System with the older LM-1(comes with sensor), RPM Module to which the second sensor is connected. RPM clamp around plug wire. Digital vacuum gauges monitoring each carb.
With this set-up plugged into my laptop I monitored (and adjusted) real time numbers for each lung.
With no laptop I can record 45 minutes of real world riding. Which then be downloaded to the laptop to view. The LM-1 does display one air/fuel sensor and rpm.
Older graphs of AFR
http://www.bonnevilleamerica.com/forums/...ge=0#Post456262 Everything plugged into my battery tender plug, plumbed to my storage bag in back. It didn’t look pretty, but it was for one season. Now it’s off and the original headers are reinstalled.
Pics of set-up
http://www.bonnevilleamerica.com/forums/...true#Post455035I have each cylinder/carburetor dialed in to my liking.
14.7 to 15.1 at any cruise speed and any time I accelerate it drops down to 12.8 to 13.2 for the ideal power zone (13.1).
My riding is about 60/40 Hwy/City
My MPG ranges from 41 to 50 no BS
