When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Ignition/Tuner/ECM/Fuel InjectionNeed advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.
If you hit "scale" instead of "cap" your VE's will lower across the board since it adjusts displacement and reduced the VE's not affected by the AT session.
They lower pretty much across the board and I have done ATs and tried scaled and cap. I prefer capped...It rained yesterday, and I think its going to today, so I cant get any logs, but I will as soon as I can. I installed and messed with MLV, and I can see theres room for improvement, but it really doesnt tell you WHAT to change, or where to.. not intuitively at least. Also, I thought I VE tuner was part of the app but it looks like you have to have another app as well to use it.. or did I miss something?
THanks
GLen
So I took the evening and AT'ed with 3, 20 minute in town rides, and 1 20 minute highway ride. Afterwards, I decided to compare the VE's that were generated to the STOCK tune. Sure enough, I was wrong...I was comparing the AT VE to the actual map I was tuning. Which apparently was too liberal. But when I compared the AT VE's to the STOCK tune, I found that the STOCK VE's were much much leaner than the AT ones.. I digress... Here is the tune, and a couple of logs..
Thanks..
Glen
^ yup lots to ponder over. I just got done with a TT-AT tuning run today (57h cams, 50mm tb, 4.89 injectors). Big VE changes, chose scale when exporting changes and it set my engine CI to 119.1.
The base tune runs great, logs look good, even before TT-AT, so at this point I'm just experimenting with the AT to see what it wants to change in the overall tune.
Tuning the new 57h cams, 50mm TB and 4.89 SE injectors has been going well. I'm kind of at a wall, not sure how to proceed due to lack of information on the topic beyond light discussion. My auto tune is wanting to scale or cap VE's - I tried scale at first and it set my engine CI from 103.3 to 119 and really dropped the VE numbers. I didn't like that so did not run with it. I ran another AT and elected to cap this time.
FRONT VE has 127.5 in several cells clustered together , 10-30TP and 2250-2750 rpm.
REAR VE has 127.5 in several cells clustered together, 15-25TP and 2750-3500rpm.
the rest of the VE's scale off lower, some around 123 or so in adjacent cells. a couple of my higher map / higher rpm cells are 125.
Bike itself runs very well, very fast, smooth on power delivery and not much knock activity. ET's good and after some slight tweaking of CDE tables my idle MAP is about 32kpa.
What say some of you experienced tuner folk- should I scale up the CI a bit to say 105-107 or drop the injector size from 4.89 to say 4.5? What's the best method to get my few maxed VE's down without affecting my present good power?
Tuning the new 57h cams, 50mm TB and 4.89 SE injectors has been going well. I'm kind of at a wall, not sure how to proceed due to lack of information on the topic beyond light discussion. My auto tune is wanting to scale or cap VE's - I tried scale at first and it set my engine CI from 103.3 to 119 and really dropped the VE numbers. I didn't like that so did not run with it. I ran another AT and elected to cap this time.
FRONT VE has 127.5 in several cells clustered together , 10-30TP and 2250-2750 rpm.
REAR VE has 127.5 in several cells clustered together, 15-25TP and 2750-3500rpm.
the rest of the VE's scale off lower, some around 123 or so in adjacent cells. a couple of my higher map / higher rpm cells are 125.
Bike itself runs very well, very fast, smooth on power delivery and not much knock activity. ET's good and after some slight tweaking of CDE tables my idle MAP is about 32kpa.
What say some of you experienced tuner folk- should I scale up the CI a bit to say 105-107 or drop the injector size from 4.89 to say 4.5? What's the best method to get my few maxed VE's down without affecting my present good power?
Scale the CID's. It gives more room for adjustment.
Thanks WOC- I'll bump it to 107 and take it for a spin. I have a pretty solid baseline to work forward from in any direction. Does changing CI only affect VE calcs or does it change other table params as well?
Thanks WOC- I'll bump it to 107 and take it for a spin. I have a pretty solid baseline to work forward from in any direction. Does changing CI only affect VE calcs or does it change other table params as well?
It just gives you more adjustment in the VE tables
That got me a bit closer, setting CI to 107. I had two cells in the front VE table, 2500rpm 15,20TP 125.7 and 125.3. Everything else was lower but not overly drastic.
Oddly, AT asked me to scale or cap again and stated it detected VEs over 127. not the case though. I'll go back to my baseline tune and put in 109 this time.
Last edited by LA_Dog; May 8, 2016 at 07:56 PM.
Reason: typo
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.