PowerVision Auto-tuning ride hard or easy?
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Cruiser
Joined: Jun 2012
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From: Ruffsdale
PowerVision Auto-tuning ride hard or easy?
Just a basic question. When in AutoTune should I try to ride hard as in shift higher in the Rpms or try to shift early and take it easy? I know the videos all say to ride how you normally would. But Im wondering if theres an approach to get the best tune? Ive noticed if I take it easy and shift early it doesnt ask me to Scale or Cap the VE Tables, its keeping it under the 127.5. If I wind the gears out in higher Rpms then i hit the 127.5 max in a lot of cells. Which method is getting me a better tune? In my case its basic AutoTune with Stock o2 sensors.
Cruiser
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From: Las Vegas
I'd recommend taping or mounting your pv so you can see it while you're running around. It will give you a better idea of what parts of the table you still need to hit. I'd recommend majority of your auto tuning to be as you would normally ride. But making sure to get a few wide open pulls too.
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Cruiser
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From: Ruffsdale
Yes I am flashing after each session. But it seems Im getting different data based on how I ride. I know the goal is to hit as many cells as possible but do you also want to max out each cell as much as possible? Seems if I ride more aggressive I hit the 127.5 ceiling in a lot of cells. Then Im prompted to Cap or scale. If I ride easy, I still hit as many Cells but I stay below that 127.5 ceiling.
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Cruiser
Joined: Jun 2012
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From: Ruffsdale
That’s the AFR table. My understanding is the AutoTune feature only makes changes to the VE tables. Which let you know if your hitting the manually set AFR settings in the original map. Or am I wrong? I’ve run a bunch of AutoTune sessions and the VE tables front and rear are the only changes it makes.
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From: Poolville
Thats the AFR table. My understanding is the AutoTune feature only makes changes to the VE tables. Which let you know if your hitting the manually set AFR settings in the original map. Or am I wrong? Ive run a bunch of AutoTune sessions and the VE tables front and rear are the only changes it makes.
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From: England
As the VE table is throttle position vs RPM it is the ability to hold an engine rpm with a throttle position long enough for the software to make the readings it needs.
One method is to find long uphill sections of road that allows you to load up the engine.
I recently saw one person discuss getting into 2nd gear and then slowly opening the throttle and by watching the screen see how each cell gets filled in. Then change into 3rd and the same, then 4th and 5th.
One method is to find long uphill sections of road that allows you to load up the engine.
I recently saw one person discuss getting into 2nd gear and then slowly opening the throttle and by watching the screen see how each cell gets filled in. Then change into 3rd and the same, then 4th and 5th.
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From: Dubuque, IA
Not sure, I'm fairly new to this myself and in another thread I have going on in the dyno room these were some of the answers I was looking for.. ie: the attached file.. I thought that they were Target AFR's but no on would confirm.. I'll check me ve tables when I get home from work..
None of my target AFR cells are leaner than 13.8 and that's in a small area of my cruise and I'm running a lot of 13.2 - 13.5 given my higher rpm cruise around town where airflow is lacking to help with cooling. Higher rpms/load WOT target AFR is as rich as 12.0 and that's what the SE Pro Super Tuner had in those cells in the first place and gave me 13.0 across the board in a wot pull on a dyno.
14.anything is too lean imo.
I hotrod a lot and I'm looking for AFRs where my engine is smoothest and coolest and could care less about mpg. I get 30ish hotrodding around town and 40ish cruising on the highway.
To get as many of the cells as possible in the VE tables, you want to vary the load at different rpms in different gears.
The optimal idle AFR for Harleys before EFI and the EPA was 12.8 btw. Optimal power is 12.8 - 13.2.
Last edited by 60Gunner; Apr 16, 2021 at 06:48 PM.
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From: Arkansas
Thats the AFR table. My understanding is the AutoTune feature only makes changes to the VE tables. Which let you know if your hitting the manually set AFR settings in the original map. Or am I wrong? Ive run a bunch of AutoTune sessions and the VE tables front and rear are the only changes it makes.