| Author | Message | ||
     Easyrider |
Hai Guys, www.bikehospital.nl/buellprojecten.php (netherlands europe) is working now on the project of tuning a XB 9 (which is already tuned to a XB12) to a XB15 (1425CC) I'm wondering if there are other people in the world who are also working on this project. please post every expirieance in this post thanks easy rider edited by easyrider on December 28, 2003 | ||
| Blake |
If it will be 1425cc, shouldn't it be called an "XB14"? | ||
| Dasxb9s |
OH NO... Shazam is going to be shipping his XB12NR to the Netherlands!! Maybe it should be... XB14.25 | ||
| Wyckedflesh |
Sounds like the Nallins kit with the XB12 crank... http://www.badweatherbikers.com/buell/messages/32777/42611.html?1072608432 | ||
| Easyrider |
Guys no further experiences?......  | ||
| Bud |
easy, when my new pistons are toasted or my crank is worn i'm gonna tell you my case is ready fore it  ( wondering how you ever gonna hold the frontwheel on the ground ) gr,B | ||
| Shazam |
I have been considering this for a while but I am still not convinced anyone has found a solid way to fuel it. All I would need is a $500 crank, anyone want to donate? | ||
| Boulderbiker |
Are you referring to the injectors or the map? Map would just require a Power Commander, so I'd imagine you mean the injectors? Please elaborate. | ||
| Shazam |
I am assuming that the injectors and Mapping are both going to be problems. The PCIII you are speaking of is/was designed to work with the XL motors  The way I understand it (and I am certainly not qualified for this) is that you cannot make changes within the PCIII to the area of the mapping that affects fuel delivery under 3500rpm and 20% throttle without affecting how the whole system works in closed loop mode or some such garbage. With larger injectors this may not be as much of a problem as I think it is, but here we are talking about giving a 1425cc motor the same amount of fuel (at idle) as would be correct for a 984cc lump. The thing is I would think that an independent fuel injection system "wholly" programmable would be necessary to accomplish this along with bigger injectors. There are a few of these systems that come to mind. (ie: megasquirt....) That are do it yourself fully programmable injection systems that are adaptable to however many cylinders you are runnning. I've even read the testimonials where they are moderately easy to construct and install, however the amount of time it would take to map and the need for a dyno and air fuel meter and such would make it a pretty daunting task for a shadetree mechanic. by the way no one on there site admitted to being done tuning the systems....? Has anyone converted to carb on an XB? I am just not sure how it will all sort out, and have had more than enough downtime related to the 1200 conversion to be eager to run into this issue headfirst. I'll be very interested if someone pulls it off! It can't be impossible, but it is going to take a lot of work to make it happen with injection. Good question to ask Pammy or Aaron. | ||
| Shazam |
Maybe the Twelve system has enough lee-way to accomodate the extra, the injectors are bigger correct? | ||
| Dasxb9s |
I read some place that it was possible to use injectors from BMW r1150 engines... as they are bigger and apparently fit or are adaptable. | ||
| Shazam |
heard that too! however would heve to get dyno time to try it out! $$$$$$$ | ||
| Bud |
the xb15 is gonna be with a carb | ||
| Easyrider |
bud, you are right it's conna be a 48 mm I don't no the english word for it (valstroom)It means the fuell will come in from above (is it making any sens)  edited by easyrider on December 29, 2003 | ||
| Wyckedflesh |
hmmm...I was thinking 50mm downdraft, iirc I had read when converting from FI to carbs you need a larger venturi/thoat/barrel. I would however contact these guys http://www.rceng.com/ about larger injectors or modifying a set of XB12 injectors first. If anyone can figure it out its them. | ||
| Steveshakeshaft |
I've read a lot about the megasquirt. There are a few interesting developments of it too, integrating ignition mapping with the original megasquirt etc. There are, it seems a few Harleys running with the megasquirt. It's way beyond my ability electronically, but it is a very interesting concept. As a bonus you can do your own TPS settings too! Steve steve_s@ukbeg.com www.ukbeg.com | ||
| Easyrider |
Still no experience guys?....  | ||
| Bud |
have you ordered the wheely-bar already gr,b | ||
| Easyrider |
not yet,..  bud do you now ore aaron has any eperience yet with the xb15.. on a xb9... | ||
| Bud |
Don’t know ??, But making a 88” kinda setup I think Nallin have made more than plenty, I also think making a xb 1430ich, is not really the way most people would go Gr,B | ||
| Wyckedflesh |
I am wondering if you would need to Dual plug the heads for that size bore. | ||
| Easyrider |
Wyckedflesh I realy have no idea.. maybe aaron can help us out here... Aaron can you also gigve your advice and share your experiences with us... | ||
| Wyckedflesh |
Maybe "need" is to strong a word, maybe a better choice would be "good idea if you Dual plug the heads" | ||
| Bud |
dual plugs, LOL whose gonna change theme ?? | ||
| Wyckedflesh |
The same person that changes them now. | ||
| Easyrider |
Still no experience guys?....  | ||
| Shazam |
What info EXACTLY are you looking for Easy? I have done everything required for this except put the larger throw crank in mine..... I bought it as a 984cc it now has the 1200cc millenium cylinders, larger throttle body, Powercommander, larger exhaust, .......so on and so on. When I said I had some concern about Fuel, this is the only thing keeping me from going further,I don't think the powercommander alone can compensate for the added displacement. Keep digging though maybe someone will post up what you need! | ||
| Shazam |
anybody know if an aftermarket ignition is available yet for the XB motors? | ||
| Easyflier |
I think the PCIII can manage it but it might need the larger injectors. Wonder if Nallin has plans to build one soon? | ||
| Easyrider |
We are almost ready with the XB15.. maybe this week I will take her out for a ride... damn I am happy...  | ||
| Shazam |
can you share any more info about your set-up? mine is being assembled as we speak.... I still haven't decided on the best means to fuel it. | ||
| Dasxb9s |
Sam... Move slowly back... DO NOT GO TOWARDS THE LIGHT! | ||
| Easyrider |
The heads of my XB15 project, the boring was 11.5:1 ans is now 10.8:1. There is more space for the valves for the incoming gasses. We used Baisley valves , black daimond tulipstyle, multi angle. The picture, left is the original head, right is the XB15 head .. http://www.buellforum.nl/misc.php?file=1477 And of course the 48 MM Carb.. http://www.buellforum.nl/misc.php?file=1312 This is our Dutch topioc of the project where we will post all pics and discusions... http://www.buellforum.nl/topic.php?id=51 and this one http://www.buellforum.nl/topic.php?id=51 | ||
| Easyrider |
and another look inside the XB15 project the rollerrockers http://www.buellforum.nl/misc.php?file=1488 |
