| Author | Message | ||
     Trosp |
Being a glutton for unfinishable projects, I picked up an XB12 muffler (with the valve in it) to adapt to my 98 S3T. Anybody else already done this? Anybody know what data is used to activate the exhaust switchover valve such as rpm and/or throttle position? | ||
| Mikej |
Trosp, Please keep us posted on your progress on this project of your's. I have no idea if it's realistic or feasible or if there are any gains to be made, but hey it's your garage so keep us posted. Sounds interesting, and I don't think anyone else has "publically" done this. It's probably been done behind closed doors with limited public accidental viewings in pre-launch mule vehicles, but beyond that I don't know if anyone has tried it. | ||
| V2win |
Trosp, Judging from the seminar that Erik gave at Surdykes, a few days ago, you may have to use most if not all of the electronic equipment that is on the XB12. If I understood him correctly, that exhaust valve is controlled by many different singals; not just rpm or airflow. Good luck with the project. | ||
| Trosp |
Sorry I haven't left an update on my progress. It's mostly because there hasn't been any, the Buell having been superseded by a few other projects and a cross-country move. Back to the muffler, though. If someone was about to do some dyno runs on their XB12, it would be interesting to do 3 for comparison: One with the valve allowed to operate normally, one with the valve disabled in the open position, and one with it disabled in the closed position. I've always been headed at this with the assumption that the valve is used as a "switch" and is either completely open or completely closed. V2win, did Erik's talk seem to confirm this or does the valve operate with vareiable degrees of opening? If it's variable, that would explain why he says you need more inputs and electronic logic to operate it. |
