| Author | Message | ||
     1_mike |
This past Friday, I took a trip to my not so local Harley/Buell dealer and had the latest map put into the ECM. Any of you with the 11Z (last three letters/numbers), take the time to get the 12Z map installed. While it still has a surge...it's "much" better than the 11Z is/was. Much better low speed driveability, acceleration from most any speed is also much better. Low speed driveability is almost on par with an offshore 4 cyl. engine. I drove it to work today to put it to the real test...splitting lanes on the So. Cal. freeways. This morning was good, I think this afternoon will be ok also. Worth the effort. Now I feel better about having a somewhat good stock backup when going with the ECM Spy method. Mike | ||
| Clarkjw |
What year please? Us '08s need to know. | ||
| Fresnobuell |
If you want the solution to any kind of surging.....get XB9's tuning program and bump your AFVs up 10%. It works like advertised! Less vibes, no surging, pulls strong from low revs, easier power wheelies...in other words, the Helicon runs like it is supposed to!!! Also, it should keep engine temps lower and it's just better for your engine in general. Plus I got almost 35 MPG on aggressive running on Sunday. PM my if you have questions about it... | ||
| Clarkjw |
XB9's downloadable program isn't ready. I'll PM 1_Mike | ||
| Fresnobuell |
I assume you are referring to the full tune he's developing? If you want an intermediate fix (not as complete as a full tune), XB9s program works great--besides you will have get his ••••• Tuning Software to do the full tune anyway. I am interested in that as well. | ||
| Clarkjw |
ZOMG •••• is filterd as a curse word (Message edited by blake on September 14, 2009) | ||
| Bigschwerm |
}ZOMG •••• is filterd as a curse word Oh Snapz!!  (Message edited by blake on September 14, 2009) | ||
| Ponti1 |
Fresno, are you running at 10% increase? I started with 8%, but was not happy. The bike seemed to run fine, but I could smell unburnt fuel and MPG dropped from ~39-41 down to ~30-32. I dropped mine back to a 5% increase, and am much happier with the results. Haven't had her on the dyno yet for better dialing in, but plan to do so soon. | ||
| Bigschwerm |
Ponti1 I was at 15% then back off to 111% after a bunch of runs and tweaking my bikes the happiest there. They were at 105/105 so a 6% increase seems perfect with mine. | ||
| Xbswede |
I think they will all require a little different fuel. I run about 7% - 9% through out the map. Instead of locking mine I decided to tune my open and closed differently based on the AFR readings from my Dyno plots. Experimenting with 5% - 10% increase seems to be a reasonable number for a quick overall gain and also the easiest to change back and forth. | ||
| Fresnobuell |
Swede, so you run 7-9% more than where the stock AFVs leveled off--or is it 107-109%. Moot point if the stock AFV were 100/100. Remember I have a slightly different california model, but my stock front AFV settled at around 90% and my stock rear 95%. Last weekend, I went from locking both at 110% (way too rich) to 105% (better, but stil too rich) to finally (100%). So in the end I am about 5% richer in the rear and 10% in the front. It seems right. I have no official way to tell--using the old sniffer. But Dave made a good point that the exhaust from a proper mixture is not going to be the same as exhaust from the lean mixtures we are used to. That is especially true in California. I think XBSwede needs to take the lead on this as he has been dyno tuning his bike along with the help of Dave. | ||
| Carbonbigfoot |
Wouldn't it be cool if you could just tell the ECM to shoot for, say 12/1 AFV instead of 13 or 14 or whatver, and it would just do it? <sigh> R | ||
| Xbswede |
Fresnobuell- My AFV values F and R never moved from 100. So this means that I am running 7% - 9% richer with a open airbox, K&N filter and O2's disabled. Because I have not been able to check my front and rear independently I have adjusted both exactly the same since they both read 100 to start with. This combination put my AFR at approx 13.5 (Mid RPM's) - 12.8 (upper RPMS). This has worked really well so far and for me it runs extremely smooth. I have put about 2000 miles with these new setting in temperatures ranging from 26F - 78F and elevation changes of 2000 ft. In few more days I will be shedding the stock modded exhaust and moving onto the loud D&D. | ||
| Bob_thompson |
Talking about these numbers guys and the fact that I just tried my new muffler system again over this last week and my AFV's went from 94.5 F&R to 100 F&R and I'm at 4500 ft elevation. Bike is running much better and stronger then ever before. Inner air cover is off also. What do you guys think I should read into this except that it really seems much better. | ||
| Markrd500 |
Has anybody got the full code for the latest reflash? Will the code be the same in the uk? The last one I had was M3HEC05Z. | ||
| Fresnobuell |
thanks Swede, nice to see actual AFR figures matched up with AFV increases. Helps us guys shooting in the dark get some concept of where we might be with AFV increases. Not only does the denser fuel charge give the bike better upper end power, but it was novel cruising at 2,500 RPMs in first gear with no stumbling or clutch-work. (Message edited by fresnobuell on April 08, 2009) |
