Barbarian Mod Adjustments to Ethanol Blend

[03HiYoSilver]

Just wondering if anyone know what changes, if any, would be necessary to Change the BJ modifications due to the now used 10% Ethanol Gasoline mix vs the 100% Gasoline settings that the ECU was programmed for originally?

I found these numbers somewhere regarding the Ethanol/Gas mix usage difference:

"You need to tune AFR's .57 less than regular gas which is 14.13 to 1 AFR.

To calculate the AFR for 10% ethanol by 0.1 kg of ethanol needs 0.9 kgs of airplus 0.9 of petrol which needs 0.9 x 14.7 = 13.23 of air. Thus 1 kg of 10% ethanol blend requires 14.13 kgs of air. Now let's assume that the ECU applies no corrections or fuel trims. At idle the ECU will inject 1 kg of fuel for every 14.7 kgs of air measured by the MAF, however our 10% blend of ethanol only requires 14.13 kgs of air. This means that there will be an excess of 0.57 kgs of air."

Your thoughts are appreciated.

 

[chrisflock]

What makes you think that the ECU wasn't programmed for 10% ethanol mix? Cars have been designed for it since the 80s...

 

[ShinyPartsUp]

I thought this thread was about blow job modifications. Imagine my disappointment!

Not even one pic (Bustanut, ths is NOT an invitation for you to share your fetish...)

Oh yeah, your post. I don't know shit, but she runs great even on 85 octane with 10% ethanol....

 

[C&C]

I'm guessing that the O2 sensor adjusts for that.

 

[Afast03nNJ]

I'm guessing that the O2 sensor adjusts for that.

Unless you have a Power Commander

 

[C&C]

I'm guessing that the O2 sensor adjusts for that.

Unless you have a Power Commander

In which case you're already running richer than designed so the calculation is moot to you anyway.

p.s. born and raised in Clifton, NJ

 

[johndaub]

Candy's dandy but 40% ethanol (e.g., JD Black) increases BJ frequency.

 

[03HiYoSilver]

Thanks for the replys.

I suppose what you are saying is that Regardless of the Ethanol % the O2 Sensor

or the PCIII (don't have one)

will Sample the Burn Gases an adjust the Air Mixture accordingly.

So if this is correct, the Barbarian Mod would need NO Adjustments regardless of Ethanol Mixtures.

 

[leo]

I have noticed that with the BJ mod + 10% blend that my bike seems to "load up" until it gets to operating temp.

 

[johnny80s]

BJs and getting loaded. I am surprised this thread is not longer.

 

[MartyA]

waitin' fer da vids..