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For the sake of sounding stupid, you're telling me the VIED's are adjustable?? I didn't see that anywhere in the ad. Variable, so they say.

 

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Blockhead,[/align]&nbsp\\;[/align]Go with the IED's.&nbsp\\; My bike is bone stock and I put XIED's on it and it seemed to run too rich. I had a lot of black soot in the tailpipes.&nbsp\\; A few days ago I took them apart and changed the resistor values out to make them IED's and it seems to be running a little better. Of course, this is all my opinion with no testing to back it up.[/align]&nbsp\\;[/align]Jim[/align]

 

Can't post AGAIN![:@][:@]

 

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&nbsp\\;
What exactly was it doing?

 

Yep the ViEDs have real small adjusters.&nbsp\\;Adjustable from the IED range to the XIED range and anything between.

 

Blockhead96,
&nbsp\\;
It&nbsp\\;had less power ,less responsive the hotter the engine&nbsp\\;got (a sign of running too rich). That and a lot of black soot in the tailpipes.
&nbsp\\;
Jim

 

I never said the AFV tables are used open-loop. What I said was statistical averages of them produce the single Adaptive Fuel Value per cylinder, the one you said went to 90% when sensors are unplugged on a running engine. That single Adaptive Fuel Value is used in every standard fuel calculation.

Why not get a bike running in a steady state on the dyno with the AFVs reset to 100%, then monitor the exhaust gases as you pull a sensor wire? Do it once each closed and open loop. Let us know what you find.

They compound the hit-or-miss on other-than-stock with no proper corrective measures setups. On stock or stock-equivalent setups they throw the tune off while open-loop. What happens when an engine is run for an extended time with a tune that is slightly off? You do not need to understand modern fuel management to be able to answer that for yourself. My take on it is going open-loop is usually the place I would like the results of running rich while cruising to get burned off, not instead being the place the deposits get made. But that is your choice. All I have been trying to do is help the good folks in this thread understand what it is they are doing. So they can choose wisely.

The idea, as you say, has full merit. I offer no help tuning with a SERT because, although I know how they work, I am not a SERT tuner. I let those who offer training on SERT+dyno answer those questions.

I thought you said you would not waste another word on me. That felt like a Sunday punch. How about next time tapping me on the shoulder first so you can try to hit me in the front of my head?

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Since you guys obviously cannot follow a link here is what I thought you might be interested in:

If you honestly think I am wrong, why not joint that thread and tell him he is too?