| Author |
Message |
    
Defjef
| | Posted on Tuesday, January 30, 2007 - 08:50 pm: | 
|
Got a problem and need some suggestions, advice, etc....I have an '05 12R with a race ECM with a D&D. I just had the 10k mile service done and they put it on the dyno. According to the guy and the chart, it is running lean at the start and then immediately runs rich until about 4k then levels off but runs rich again from about 5500 til redline. I know that there are ways to adjust the A/F ratio, but I don't know the best way or how exactly to do it. I have heard about the Power Commander but have gotten mixed reviews on them. I know about Techlusion but if I am not mistaken that only enriches it. So what is the best option??? Thanks in advance. |
Blake
| | Posted on Tuesday, January 30, 2007 - 11:32 pm: |
|
How does the bike run?
I think the techlusion will also lean the fuel delivery. It's a relatively simple approach that lacks in effectiveness compared to the complex approach (full in-depth dyno tuning required to develop good fuel mapping) of the latest-greatest EFI tuning system by technoresearch, the Direct Link system. |
Defjef
| | Posted on Wednesday, January 31, 2007 - 11:38 am: |
|
It runs good but who knows how it could run if it were right. According to his dyno, it is putting out 75 horsepower and 72 ft/lb of torque. Seems to me that it could do better. |
Defjef
| | Posted on Wednesday, January 31, 2007 - 11:42 am: |
|
Blake,
I just went to Techlusion's website and their's only adds fuel. So I guess it's just Direct Link?? |
Cringblast
| | Posted on Wednesday, January 31, 2007 - 09:29 pm: |
|
Def,
From what I read so far, power commander is not maken for Buells any more ? |
Defjef
| | Posted on Wednesday, January 31, 2007 - 11:52 pm: |
|
Yeah, but through the use of the internet, you can get just about anything. |
Cringblast
| | Posted on Thursday, February 01, 2007 - 07:55 am: |
|
If you get the power commander wouldnt you be able to tweak the EFI to how you would want it to run ? |
Defjef
| | Posted on Thursday, February 01, 2007 - 09:06 am: |
|
Yeah, but I have heard mixed reviews about the PC. I read on this board that some people end up just pulling them off because it causes too many problems. |
Al_lighton
| | Posted on Thursday, February 01, 2007 - 09:57 am: |
|
Directlink is a far better option than a power commander. But both require using the proper tools for tuning it or you'll likely only make things worse. There are so many break points in a FI map, doing it with your butt dyno is futile. And due tot he way the AFV learns, it is very important to tune the AFV learn mode properly. That is easier to do now that DL reads the AFV directly, if you know the tricks.
We have a D&D map for the XB12, but the weather got cold before my beta tester could road test it. I still don't have a beta tester in a warm climate to get the last little bit dialed in.
The D&D is a tough pipe to fuel right. It makes power where the Buell stock and race pipes are in their midrange hole, and it falls off where the race pipe shines. Neither the race map nor the stock map are particularly good matches for it. As a result, it takes longer on the dyno to get it dialed in. For those folks wanting mid range grunt and less concerned about top end power, it's a good choice. But to be it's best, a DL map is the best choice.
Al |
Cringblast
| | Posted on Thursday, February 01, 2007 - 10:36 am: |
|
So Al,
If one wanted, lets say on stock xb12r would first have a dyno run. Look at the results and then decide based on dyno run what needed to be adjusted and at what point. Is that what a DL is used for. |
Al_lighton
| | Posted on Friday, February 02, 2007 - 09:52 am: |
|
Well, kinda, but that is a bit of an oversimplification. You do that multiple times using dyno pulls at a whole bunch of different throttle settings for approx 40%-100% throttle position. After that, you do steady state cruise mapping for the 7%-30% throttle settings.
When you see a dyno plot posted around here, it is usually a wide open throttle (WOT) plot. You could tune the WOT column of the fuel map by reading the A/F plot from that run, but you need to do that same thing for all throttle settings, and you need to do it individually for both the front and rear cylinders. And you do a run, read it, adjust it, then do it again and again until your A/F curve is flat. Pushing the curve around until it is flat everywhere is an iterative process. Doing a good job on a Buell map is a 4-5 hour task minimum, sometimes longer. D&D's take longer because they are further off to begin with.
Al |
Cringblast
| | Posted on Friday, February 02, 2007 - 12:04 pm: |
|
Thanks for the info Al.
C. |
|
Troubleshooting (Poor Starting/Running/Handling/Ride Issues) »
Archive through February 28, 2007 »
Fuel Problem....