HARLEY: Data Log
Thread Starter
|
Road Captain
Joined: Jan 2014
Posts: 641
Likes: 48
From: Brisbane
Data Log
Hey guys,
I'm going to try and post my data log here,
https://www.dropbox.com/s/gs6lq48f10...87_14.hdx?dl=0
I've been having some trouble with this file, but I hope someone is able to view it.
The questions I have are as follows,
1. Is there anything that stands out that I should be aware of, I have no idea how to analyse this data.
2. I retro fitted my own O2 sensors, is there any way of telling if they are positioned correctly, or reading correctly.
3. Am I running too rich?
Thanks in advance, any and all input is greatly appreciated.
Thanks, Matt
I'm going to try and post my data log here,
https://www.dropbox.com/s/gs6lq48f10...87_14.hdx?dl=0
I've been having some trouble with this file, but I hope someone is able to view it.
The questions I have are as follows,
1. Is there anything that stands out that I should be aware of, I have no idea how to analyse this data.
2. I retro fitted my own O2 sensors, is there any way of telling if they are positioned correctly, or reading correctly.
3. Am I running too rich?
Thanks in advance, any and all input is greatly appreciated.
Thanks, Matt
Club Member
Joined: Aug 2007
Posts: 10,393
Likes: 2,060
From: N. Atlanta Burbs
Thanks for the post in the Dyno Room Matt. Being a new forum it may take a bit to populate views and get members to used to checking in.
I'm sure someone smarter than I will take a look at your data soon. Chad with Wide Open comes in here often.
I'm sure someone smarter than I will take a look at your data soon. Chad with Wide Open comes in here often.
Thread Starter
|
Road Captain
Joined: Jan 2014
Posts: 641
Likes: 48
From: Brisbane
Thanks Mr Wizard, I just thought I'd give it a go. I have been in touch with Chad via email and I appreciate that he is a busy man, so I didn't want to keep pestering him. So I just thought I'd throw it out there and hope for the best! Thanks, Matt.
Sent from my iPhone using IB AutoGroup
Sent from my iPhone using IB AutoGroup
I looked at your log last night before I left the shop. It looks like the VE's are all over the place. I'll pull it up when I get to the shop and get some screen shots and show you a couple areas. It looks like you are running lean in the lower TP areas.
Thread Starter
|
Road Captain
Joined: Jan 2014
Posts: 641
Likes: 48
From: Brisbane
Thanks Chad, I really do appreciate your time on this! There are so many things I'm confused about right now. If you were looking at my VEs then I obviously sent you my map instead of my data file. I sent it from the recordings folder in my C drive and it had the .hdx extension. The map should be a .dt0 extension, like I said to you, I'm not a computer guy, I'm just a dumb bricklayer!!! Which brings me to point 2, if my VEs are all over the shop could that possibly be caused by incorrect placement of retro-fitted O2s? I know for sure there are no intake or exhaust leaks. Also I've only done 1 smart tune since my dodgy dyno. I've got no idea what that bloke actually did, but I know that the last series of smart tunes I had the VEs changing by 3% or less.
I'm sorry for being a PITA, I really hope we can get to the bottom of this.
Thanks, Matt.
I'm sorry for being a PITA, I really hope we can get to the bottom of this.
Thanks, Matt.
Thread Starter
|
Road Captain
Joined: Jan 2014
Posts: 641
Likes: 48
From: Brisbane
Ok thanks. I'll hopefully get a chance to get more data this weekend. Cheers.
Sent from my iPhone using IB AutoGroup
Sent from my iPhone using IB AutoGroup
Trending Topics
ok, in this example taken from your log we'll look at the 350 time stamp as an example. You'll notice the vertical reference line. I'm plotting AFR desired (red line), Engine speed (olive green), o2 intergrator rear (lime green) and throttle position (blue line). you'll see that at this point the target is 14.6, in a perfect world the o2 intergrator would be at 100. and we are at 93.8%, 1763 RPM, 4% TP. So at this spot we can see that we are about 6% rich at the 1750RPM 5%TP cell in the rear VE table
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
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
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Thread Starter
|
Road Captain
Joined: Jan 2014
Posts: 641
Likes: 48
From: Brisbane
Thanks Chad, that's exactly the feedback I was looking for. I don't plan on changing any VE values manually, but just for example so I know I fully understand, The rear VE is 79%, so if I was to change it to 73% that would tell the ecm there's less air so It would take that 6% of fuel out and theoretically bring the integrator close to 100 (in theory!). I will continue to do smart tune runs and try to sort the VEs first. Also just wondering how much the CLB table would change things, I seem to remember making it a bit richer a long time ago, and I doubt my crappy dyno guy would've even looked at that? Should I change it back to the middle of the range and let the VEs do the heavy lifting? Sorry for all the possibly dumb questions, I have about a million more but I'll hold back for now!! Thanks again for your help, you're a legend!
Yes changing the CLB changes things. And yes you are correct about changing the VE's as well, you're getting it!! Run a few more smart tunes then look at the logs. Look for spikes and dips in the o2 integrators lines. If they are in an area that is targeting 14.6AFR you can see what RPM and TP they are in, that will give you a better idea what areas to try to hit in your next smart tune run, or the area to manually change in your VE's.