You're definitely not staying below 2500 on the highway at 70+ mph. I generally keep the bike 2500-3000rpms when cruising on the highway which is where I want to maintain the highest fuel economy. Back roads I can also generally maintain 2500-3000 rpms and still have plenty of power for accelerating out of turns etc.

Below 2500 (stop light acceleration) and above 3k (real hard acceleration to 5500 and highway acceleration) I want as much performance as my bike can deliver....fuel economy be damned.

 

I do have the AT-100 module with WB Sensors and PV on my bike and did the tuning to my map with them. However, these graphs were generated with the same log data that you would get with the stock O2 sensors. You should be able to do the same graphs.

 

Thanks Whittle...I had the version from the other site and it was a bit different.

 

Here's my dyno tuned AFR (Lambda) adjusted for more fuel economy in the cruising range. BTW the original Inc Cruise AFR table I posted was incorrect. I re-posted the actual one that matches this Lambda table.

 

Lowering the AFR to 14.6 in the upper rpm ranges could do significant damage to the engine, particularly without dramatically lower the timing. There's just no point to trying to tune with the stock O2 sensors above the cruise range. You either need WB sensors or you need to spend time on a dyno that has a fuel sniffer to act as an O2 sensors when running at WOT.

 

Keep in mind that the software that you DL today will time out sometime in October. It is just beta stuff right now. If you have any license for any version of MegaLogViewer right now, you will not need to send more money for the HD version when the HD version times out.

The beta version has all the functionality of the eventual registered stuff right now.

If you can think of any really cool features you would like to see in the next version, run the idea past me. I can try to get Phil to add it into the SW. It all has to do with how may people are downloading the software and registering it.

AW

 

Most Harley factory codes run closed loop all the way up to 80 KPA. You have to be really close on the VEs if you are going to run open loop up there with a 14.6 target AFR. If the VEs are 10% too low and you are not using the Closed Loop and the Adaptive Fueling to save your butt... you bet you can smoke a motor quick.

AW

 

If your gearing is stock my '07 is a bit higher and I'm turning 2500 @ 65mph. We generally ride <60mph on the backroads around here, so I'm usually <2500 and I actually prefer staying between 2200-2500 when possible.

Anyway, with the 255 cams I have plenty of power while I'm in the cruise range even without downshifting, which makes a difference, too. OTOH you are a few performance tiers above me, so you shouldn't have any problems at all above or below 2500.

 

Agreed. If you ride at 65mph on the highway then your approach to eco-tuning between 2k and 2500 makes good sense. I typically ride at 70-80mph on the highway and 6th gear is right around 2700 in the low 70's. I usually have several long trips (1000miles +) a year and I'd like to have a "long-distance eco map" for these trips already loaded in the PV.

I break 100ftlbs at 2200 (I'm above 110ftlbs between 2700-5400rpms) so tuning for economy at a lower rpm isn't an issue other than potential loss of performance when accelerating hard from a full stop (although a nice by-product will be that my rear tires will last longer than 8000miles!). That being said, I'm planning on developing a map for full economy to see how it feels by making the AFR 14.4 (.980 Lambda) from 0-3000rpms and out to 70kPa. It'll be a while before I get enough saddle time for the tuning. I'll report back what I find and how the full stop acceleration performance and fuel economy are effected.

I have no plans to make adjustment above 3k rpms given the very strong performance at higher rpms that I don't want to alter.

 

anyone with AFR table from a stock 2010-2011 103" ?