Author Topic: 2011 ultra with power vision  (Read 355 times)

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Offline Nick9900

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2011 ultra with power vision
« on: March 23, 2021, 10:58:43 AM »
I have a 2011 ultra with S&S mr103 cams, and de catted head pipe aftermarket mufflers, had the dealer do a dyno tune. out riding noticed i have a ping around 2k with a load. Is it im just lugging it with the cams or is the timing just off with the tune. Running 91-93 octane depending on the station im at.

Online Hossamania

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Re: 2011 ultra with power vision
« Reply #1 on: March 23, 2021, 11:13:14 AM »
At what speed and gear are you noticing the ping? Is it while accelerating through the year, or at steady state cruising, holding a steady speed?
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Offline Nick9900

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Re: 2011 ultra with power vision
« Reply #2 on: March 23, 2021, 11:19:01 AM »
3rd and up, notice around 2k haven't ran any lower. had decent hill in 4th ping at 2500-2800

Online Hossamania

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Re: 2011 ultra with power vision
« Reply #3 on: March 23, 2021, 11:28:23 AM »
It may need a tweek on the tune. 2000 rpm is pretty low for cruising though, the sweeter spot is about 2400 to2700 rpm in general, up to 3000, depending on load, wind, speed. Accelerating up a hill, especially loaded, would most likely require downshifting, even at 2700. But if accelerating gently, it can work. Putting a load on the motor at 2000 rpms cruising is not ideal, and really too low rpm.
Try running higher rpms and see if the pinging mostly stops. Do not lug the motor, nothing in the drivetrain is happy doing that.
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Offline Nick9900

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Re: 2011 ultra with power vision
« Reply #4 on: March 23, 2021, 11:30:02 AM »
Will do, i was weak on it today. But the roads were wet with fresh rain so i was being probably overly cautious. Don't like wet and dark for my roads.

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Re: 2011 ultra with power vision
« Reply #5 on: March 23, 2021, 11:35:31 AM »
It's about gentle throttle control in rain, that's for sure! But, don't short shift, don't run 5th gear below 55 mph, generally. Don't lug the motor. Accelerating from 2000 rpms in 3rd gear is lugging, in my book.
« Last Edit: March 23, 2021, 11:52:13 AM by Hossamania »
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Online Hossamania

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Re: 2011 ultra with power vision
« Reply #6 on: March 23, 2021, 01:26:06 PM »
Was it Dyno tuned, or just a flash tune, or auto tuned on the street?
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Offline Nick9900

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Re: 2011 ultra with power vision
« Reply #7 on: March 25, 2021, 11:25:29 AM »
Dyno tune

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Re: 2011 ultra with power vision
« Reply #8 on: March 25, 2021, 11:46:41 AM »
If it continues to ping, take it back to get the tune dialed in.
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Re: 2011 ultra with power vision
« Reply #9 on: April 02, 2021, 08:27:14 PM »
I ran my '12 today, stage ll 103" motor with a flash tune using Power Vision, paying attention to rpms and speed. At 30 mph in 3rd gear, it is turning 2000 rpms, so normal cruising rpms in that gear. I didn't realize the rpms were so low at that normal cruising speed. It accelerated smartly with no pinging, same in 4th gear at close to 40 mph. So if yours is pinging at those mph and rpms, it may need a tweak on the tune, or have some vacuum leak going on.
Does this rag smell like chloroform?