I'm using the Variable iED on my 2010 FLHR. They are current set ring in the middle of the lean to rich setting at 14.0. I occasionally notice a small backfire or pop when shifting between 1st and 2nd. Any thoughts on how I could adjust the ViED to help solve that?? It really doesn't bother me and if I can't get it squared away I won't be loosing any sleep over it. But still thought I'd ask.

Oh, also I'm using the OE air intake but have gutted the OE head-pipe and using the 4" slash-down mufflers from Jackpot.

Thanks!

 

Steve at Nightrider is the best person to ask, I'm sure he could answer. Generally I understand decel popping being a function of being too lean - either an exhaust leak or too much enleanment on the decel tables in the map, which I dont think the ViEDs can affect.

Also, Steve told me to run at 25% once I get my catless head pipes, its a bit counterintuitive, you'd think you would want to add more, but he can explain.

 

I just found Steve's explanation to me of where you want to run the ViEDS when you are catless:

"You will have to alter the settings for removal of the converter. Generally the VIED's want settings around the 25% rich area once the converter is removed. This is actually to compensate for reversion bringing fresh air to the sensors (which is seen as a lean mixture and actually adds some fuel), so the VIED needs to be 'turned down' some to compensate. The net effect is you are still running (and adjusting) to get the ECM to run in closed loop at 14.0:1, but you have to back off on the VIED settings to stabilize the voltage readings with the lower settings because of the fresh air that can get to the O2 sensors with the conveter removed."

 

I've run catless for over 5k miles on my Vs with both front and rear set straight up center. Pulled the plugs a couple of weeks ago and the front was perfect; the rear slightly -- just slightly -- leaner. Once in a while I get an acceleration pop between 1st and 2nd; no decel pop at all. I'm headed for a weekend ride, so tweaked the rear adjustment one 'click' rich. I'll let you know how it goes.

 

I run my 2011 SG at 75% on my Vied,had the Harley stage 1 download installed.I also gutted my cat and installed a S/E air cleaner,I have the 3.5"Jackpots but removed the baffles and replaced them with 2" wildpig baffles.The bike runs strong and no decel pop.

 

That's good info to right there! Thank you. I'm glad I asked b/c I was logically thinking I needed to richen the settings.

 

JetD,

That is the identical situation I'm having too. Looking forward to hearing your results. Thank you for the input.

 

Wanted to bump this to see if you all had any success fine tuning your ViED's

 

I have a 12 ultra with v&h dresser duals and rounds. And v&h naked a/c. Running my vied at 3/4. No pops, pings, or knocks.

 

I emailed Steve M. who said independent cylinder adjustment is fine but would not give any recommendations. What happened when you increased the rear cylinder that extra 10% ... ?

BTW: I run mine at the first notch... 10%
2010 FLHTP 103 catless V&H Power Dual Header 2-1-2
otherwise all stock.