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[bdas2]

It seems that when I changed over to mobile1 the pinging is worst.   Has anyone ran across this?

[Twolanerider]

It seems that when I changed over to mobile1 the pinging is worst.   Has anyone ran across this?

Engine runs so much quieter with a good oil rather than Syn3 that you can just hear the detonation better now .

[grc]

When you changed the oil, it wouldn't have been around the same time the outside temps got hotter and the fuel companies went to summer blend fuels by any chance?  Unless your bike is burning a lot of oil, the oil won't cause detonation or "pinging". 

Try a different brand of gasoline.  I don't know if you have Shell out in California but if you do you should definitely try it.  My bike would ping with BP/Amoco 93 octane, but it is fine on Shell 93 octane.  Obviously some companies octane ratings are suspect at best.  And I still don't trust some stations to not dump the cheaper mid grade in the tank and charge the premium price. 

If all else fails, and you get detonation no matter what fuel you use, get the bike tuned.

Jerry

[HOGMIKE]

It seems that when I changed over to mobile1 the pinging is worst.   Has anyone ran across this?

I must have missed it, what year is your bike?

[bdas2]

thanks for the advice.........the last gas I put in was arco  ant he temperature is in the high 70's

I'm riding an 09 Se ultra with fullsac baffels and one of his maps and tuner

[HOGMIKE]

thanks for the advice.........the last gas I put in was arco  ant he temperature is in the high 70's

I'm riding an 09 Se ultra with fullsac baffels and one of his maps and tuner

There should be NO pinging. There is something wrong with your map, or the knock sensor is turned off, or one of your sensors is malfunctioning.
Unless you got some really really bad gas!
Steve has some really good maps from his dyno runs, you might ask him to check the one he sent you.
The new Harleys have pretty good knock control, I have had to run regular, with NO pinging or knocking.
Let us know what you find out!

[Guilty]

My bike has a pinging problem since day 1. I suspect that is from the ethanol mix in the gasoline here in Oregon.

[Mikko]

There should be NO pinging. There is something wrong with your map, or the knock sensor is turned off, or one of your sensors is malfunctioning.
Unless you got some really really bad gas!
Steve has some really good maps from his dyno runs, you might ask him to check the one he sent you.
The new Harleys have pretty good knock control, I have had to run regular, with NO pinging or knocking.
Let us know what you find out!

I thought also that knock control would take pinging off. How much advance should there be? I have Jims 131 and Daytona Twintec. I had quite a lot of pinging and then I decreased advance first 3 degrees and after that another 3 degrees. So now I have decreased 6 degrees of advance through the whole map. I believe still the highest numbers are  about 35 degrees. What is normal?

[HOGMIKE]

I thought also that knock control would take pinging off. How much advance should there be? I have Jims 131 and Daytona Twintec. I had quite a lot of pinging and then I decreased advance first 3 degrees and after that another 3 degrees. So now I have decreased 6 degrees of advance through the whole map. I believe still the highest numbers are  about 35 degrees. What is normal?

I think the

daytona REPLACES the OEM ECM, correct? You may have lost the ability for the engine to monitor and control output from the spark knock sensor used on the OEM module.
Daytona wants you to decrease timing (front and rear) to get rid of knock. Larger engines are more prone to this.
I use S&S IST on my other bike, and it has a knock sensor (little different than the new Harley OEM) but, it will work to roll back timing when knock occurs. My big motor with high compression WILL ping, but I can hear it, ONCE, then the timing will adjust!
I don't know much about the Daytona system, but, check to see what they use for knock control. It's really hard to beat the Harley OEM ECM for sophistication of engine control.
Maybe you can contact Daytona to get input from them how to control your knock?

[HD Street Performance]

Number of things can contribute
1. Mobil 1 has a tendency to thin easier than some synthetics. Check the VI in the product data sheets and compare. IME the valvetrain on noisy motors with fast ramp cams got worse. This noise is valve lash and the duration and lift are actually reduced. Oil temps rise as the viscosity thins and the valves can't give full lift and duration (exhaust side builds the heat). Hotter oil entrains more air too. See if when hot the oil is aerated.
2. California has gas with an addtive package that doesn't help pinging.
3. The tune

Cool the motor off by using a higher viscosity oil and run the best fuel you can. Still pinging, assuming the mechanical compression is reasonable, get a custom tune.

[Unbalanced]

When is the bike pinging and under what conditions such as  Are you going along and grabbing a handful of throttle and as you go through 2500 - 3200 you hear the pinging or detonation?

[bdas2]

from all the info I have received I now think it was bad gas from arco.....I filled up the tank with shell and it seems to be better....I am still testing.

[Mikko]

I think the

daytona REPLACES the OEM ECM, correct? You may have lost the ability for the engine to monitor and control output from the spark knock sensor used on the OEM module.
Daytona wants you to decrease timing (front and rear) to get rid of knock. Larger engines are more prone to this.
I use S&S IST on my other bike, and it has a knock sensor (little different than the new Harley OEM) but, it will work to roll back timing when knock occurs. My big motor with high compression WILL ping, but I can hear it, ONCE, then the timing will adjust!
I don't know much about the Daytona system, but, check to see what they use for knock control. It's really hard to beat the Harley OEM ECM for sophistication of engine control.
Maybe you can contact Daytona to get input from them how to control your knock?

I made a new ignition advance map where the max adv. is 28 degrees. The problem was the numbers at 1000-2000 RPM but I tried to invent something. Now the bike runs much smoother and has more power. Still the JIMS lifters are making terrible noise.

[Twolanerider]

I made a new ignition advance map where the max adv. is 28 degrees. The problem was the numbers at 1000-2000 RPM but I tried to invent something. Now the bike runs much smoother and has more power. Still the JIMS lifters are making terrible noise.

Send a PM to Hogbreath for a hoary and recent tale on Jim's lifters.

[grc]

I made a new ignition advance map where the max adv. is 28 degrees. The problem was the numbers at 1000-2000 RPM but I tried to invent something. Now the bike runs much smoother and has more power. Still the JIMS lifters are making terrible noise.

Send a PM to Hogbreath for a hoary and recent tale on Jim's lifters.

And after reading the story from Hogbreath, shut that puppy down and visually check the lifters before you trash the engine.  Lifters making large amounts of noise for any reason is not good, but if it's because the axles for the rollers are coming apart, the next thing you hear may be kaboom.

Jerry