a/ replace a/c mod?

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Aug 25, 2011 | 11:27 AM

#11

Feeeeg

Thread Starter

Tourer

Joined: Jul 2011

Posts: 299

Likes: 1

From: Ct.

Ill be honest, I moved from a 05 suzi boulevard, where I removed both the horn on the shift side, and the AIR valves on the brake side, exposing the beautiful jugs, and apparently we cant do that on the HDs, cause of the air cleaner.

Aug 25, 2011 | 12:00 PM

#12

blusmbl

Road Warrior

Joined: Aug 2010

Posts: 1,268

Likes: 8

From: Detroit, the asshole of America

Quote:

Originally Posted by djl

Your first mistake is thinking that the H-D EFI is anywhere near the sophistication of todays automotive EFI systems; not even close. No matter what mods you make, the only adjustment the H-D EFI will make is under no load condtions, i.e., cruise and idle; verywhere else your locked in to a "stoich" AFR of 14.7; great for water cooled V8s but not so much for an air cooled VTwin. These motors come from the factory way lean to meet EPA regs.

Stock the bikes run as rich as .981 lambda, even in cruise ranges. It's forced into open loop at WOT (lambda down to .885, before you get into cat temp protection, when it drops even further) just like everything else, including all passenger cars. They are much richer than everybody thinks they're set up to be.