Power Vision Map/Cam Question
Thread Starter
|
Road Master
Joined: Apr 2007
Posts: 1,216
Likes: 242
From: Northern O H I O
PV tech sent me an updated tune which I will try this wknd. We'll see if that made any difference.
Thanks
Road Master
Joined: Jul 2010
Posts: 1,042
Likes: 86
From: Centeral Coast, California
I plan to have it tuned in May but wondered if I could make any adjustments myself in the interim. If the PV is this complicated I dont see the benefit of having it vs the SERT if I need a professional tune in the end anyway. The only benefit I see is dropping in a canned tune but dialing the bike in still seems to require a pro. In lieu of that, I'm just trying to understand it.
PV tech sent me an updated tune which I will try this wknd. We'll see if that made any difference.
Thanks
PV tech sent me an updated tune which I will try this wknd. We'll see if that made any difference.
Thanks
I'll give you an example....
I had a map that was sent to me by either FM or DJ, can't remember. In any case, I loved its performance, except in town. My bike was overheating and going into parade mode in the dead of winter when stuck in traffic for just a mere 10-15 minutes once the bike had reached operating temp. I loaded it up with wife and gear, ran it until it reached operating temp, and then ran an auto tune while riding around town for about 30 minutes. Overheating problem completely solved. AND.....my bottom end torque increased appreciably. I didn't even know what was "there" to be tapped into until I ran that specific auto tune. I thought I was happy with what I had after just a couple of auto tunes while concentrating on a completely different spectrum of that specific MAP. I think I have it right where its giving me the best that it can given my set-up now, but who knows (?)...... until I feel the need to run another auto tune I won't know.
My point being that I struggled with my PV not understanding all that it was capable of (and I still don't!) while guys on this site were telling me the same that you're hearing....run auto tunes. It really is a great tool that once you (we) learn how to use it, becomes very useful.
Road Master
Joined: Jul 2010
Posts: 1,042
Likes: 86
From: Centeral Coast, California
One last thought....
I too was planning on having my bike professionally tuned. After getting comfortable with auto tune, I feel pretty confident that I don't need to spend that money. Would a professional tune give me more out of my current set-up? Possibly. But I really like the way it performs now, and don't at all feel like that expense is necessary. My bike is accelerating riding one up from 0-60 mph in just under 4 seconds.....that's good enough for me. And when I am up in 5th and/or 6th gear, 70 to 100 happens faster than I need it to...by far.
Stick with that PV....it's worth the effort and patience.
I too was planning on having my bike professionally tuned. After getting comfortable with auto tune, I feel pretty confident that I don't need to spend that money. Would a professional tune give me more out of my current set-up? Possibly. But I really like the way it performs now, and don't at all feel like that expense is necessary. My bike is accelerating riding one up from 0-60 mph in just under 4 seconds.....that's good enough for me. And when I am up in 5th and/or 6th gear, 70 to 100 happens faster than I need it to...by far.
Stick with that PV....it's worth the effort and patience.
Road Master
Joined: Feb 2010
Posts: 1,237
Likes: 61
From: Albany, OR
I plan to have it tuned in May but wondered if I could make any adjustments myself in the interim. If the PV is this complicated I dont see the benefit of having it vs the SERT if I need a professional tune in the end anyway. The only benefit I see is dropping in a canned tune but dialing the bike in still seems to require a pro. In lieu of that, I'm just trying to understand it.
PV tech sent me an updated tune which I will try this wknd. We'll see if that made any difference.
Thanks
PV tech sent me an updated tune which I will try this wknd. We'll see if that made any difference.
Thanks
Thread Starter
|
Road Master
Joined: Apr 2007
Posts: 1,216
Likes: 242
From: Northern O H I O
I too felt overwhelmed by the PV and everything that it was capable of doing, that I wasn't capable of mastering. Stick with it, you'll learn to love it. Even the new MAP that DJ Tech sent to you will need to have auto tunes run off of it, as NO TWO BIKES are the same. Learn to us auto tune, use the new MAP that was sent to you as your base, and you'll see a gradual increase in performance until you feel confident that you've hit all the areas in the map where you ride.
I'll give you an example....
I had a map that was sent to me by either FM or DJ, can't remember. In any case, I loved its performance, except in town. My bike was overheating and going into parade mode in the dead of winter when stuck in traffic for just a mere 10-15 minutes once the bike had reached operating temp. I loaded it up with wife and gear, ran it until it reached operating temp, and then ran an auto tune while riding around town for about 30 minutes. Overheating problem completely solved. AND.....my bottom end torque increased appreciably. I didn't even know what was "there" to be tapped into until I ran that specific auto tune. I thought I was happy with what I had after just a couple of auto tunes while concentrating on a completely different spectrum of that specific MAP. I think I have it right where its giving me the best that it can given my set-up now, but who knows (?)...... until I feel the need to run another auto tune I won't know.
My point being that I struggled with my PV not understanding all that it was capable of (and I still don't!) while guys on this site were telling me the same that you're hearing....run auto tunes. It really is a great tool that once you (we) learn how to use it, becomes very useful.
I'll give you an example....
I had a map that was sent to me by either FM or DJ, can't remember. In any case, I loved its performance, except in town. My bike was overheating and going into parade mode in the dead of winter when stuck in traffic for just a mere 10-15 minutes once the bike had reached operating temp. I loaded it up with wife and gear, ran it until it reached operating temp, and then ran an auto tune while riding around town for about 30 minutes. Overheating problem completely solved. AND.....my bottom end torque increased appreciably. I didn't even know what was "there" to be tapped into until I ran that specific auto tune. I thought I was happy with what I had after just a couple of auto tunes while concentrating on a completely different spectrum of that specific MAP. I think I have it right where its giving me the best that it can given my set-up now, but who knows (?)...... until I feel the need to run another auto tune I won't know.
My point being that I struggled with my PV not understanding all that it was capable of (and I still don't!) while guys on this site were telling me the same that you're hearing....run auto tunes. It really is a great tool that once you (we) learn how to use it, becomes very useful.
Appreciate the response.
Thread Starter
|
Road Master
Joined: Apr 2007
Posts: 1,216
Likes: 242
From: Northern O H I O
One last thought....
I too was planning on having my bike professionally tuned. After getting comfortable with auto tune, I feel pretty confident that I don't need to spend that money. Would a professional tune give me more out of my current set-up? Possibly. But I really like the way it performs now, and don't at all feel like that expense is necessary. My bike is accelerating riding one up from 0-60 mph in just under 4 seconds.....that's good enough for me. And when I am up in 5th and/or 6th gear, 70 to 100 happens faster than I need it to...by far.
Stick with that PV....it's worth the effort and patience.
I too was planning on having my bike professionally tuned. After getting comfortable with auto tune, I feel pretty confident that I don't need to spend that money. Would a professional tune give me more out of my current set-up? Possibly. But I really like the way it performs now, and don't at all feel like that expense is necessary. My bike is accelerating riding one up from 0-60 mph in just under 4 seconds.....that's good enough for me. And when I am up in 5th and/or 6th gear, 70 to 100 happens faster than I need it to...by far.
Stick with that PV....it's worth the effort and patience.
Thread Starter
|
Road Master
Joined: Apr 2007
Posts: 1,216
Likes: 242
From: Northern O H I O
It's not complicated. Respectfully, you just need to educate yourself about the fundamentals of engine management. If you don't understand that it's the VE tables that need tuning and not the AFR table, you need to stop. Either pay someone to do it or take the time to read everything you can about basic engine tuning. It doesn't matter really which tuner is used, they all work on the same fundamentals of engine management. Basically, measuring air flow in/out of the engine so the proper fuel can be applied to meet the request of the AFR table. Cam timing and spark curves and a bunch of other things play into it, but understanding VE and AFR is where you start.
That tune is now deleted, never to be applied to any bike... 😜
Thanks for replying.
Last edited by xmen9c; Apr 24, 2015 at 01:26 PM.
Road Master
Joined: Feb 2010
Posts: 1,237
Likes: 61
From: Albany, OR
Dynojet has a big PDF that explains this all. I still will go back and reference it and I've tuned three bikes with it in the last 4 years. There's also a big sticky thread in the ECM/Tuning section of the forums. Lot's of guys on there that monitor it and help out.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
6 Weirdest Harley-Davidsons Ever Sold to the Public
Verdad Gallardo
7 Times Harley-Davidson Chucked Tradition Out the Window
Verdad Gallardo
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
Thread Starter
|
Road Master
Joined: Apr 2007
Posts: 1,216
Likes: 242
From: Northern O H I O
Thanks! I read more on the auto tune on DJet's website. Makes more sense to me now. I will definitely try it in the future. For now, going with the updated tune provided by DJets Tech support yesterday. I'll post after I ride some and see if there's any improvement.
Outstanding HDF Member
Joined: Jan 2011
Posts: 2,590
Likes: 31
From: Western Illinois, land of bad roads, and corrupt politicians
Even with their tune, you will want to run several autotune sessions. Load their tune, and run autotune on it, then save it to a spare slot. Load the saved autotune, and run autotune on it again. Do this a bunch of times, until you don't see any changes in the cells. I usually pick two spare slots and alternate the save location between the two.
This will make small changes to their tune to make it fit your bike. Kind of like putting on wet boots, to mold them to your feet.
Last edited by shooter5074; Apr 24, 2015 at 03:12 PM.