| Author | Message | ||
     Tbowdre |
so I just bought an XB12R. sooo psyched. anybody here modifying the stock air box? Im sure lots of people have! im looking for suggestions | ||
| Dungood |
http://www.badweatherbikers.com/cgibin/discus/search.cgi | ||
| Sik_s |
No, do not modify the stock airbox the engine will run lean and you risk blowing it up. Although I would probably just use the search button instead of listening to that. . . . | ||
| Sik_s |
Also please see: http://www.google.com/advanced_search?q=site:www.badweatherbikers.com | ||
| Gentleman_jon |
It is always a good idea to go directly to the Knowledge Vault with this type of question. The XB line has been out for three years now, and a lot of experimentation has been done, and carefully organized in the KV. Takes a bit of work to find it sometimes. If I may take the liberty of summarizing: in order to quickly and easily increase the power of a XB 12 one needs to address three items together. Doing just one will not help much, and usually results in a poorly running motor. 1. Intake. a. remove snorkel, the rubber tube in the thru frame intake tract. b. Use K+N or Buell high volume air filter c. remove or cut large holes in the air box. 2. Fuel injection management a. Buell Race ECM b. Direct Link or other third party programmer 3. Exhaust There are many exhausts available, a thorough discussion of them is available on the American Sport Bike site, one of our valued sponsors.( XB exhaust shootout). Basically the air intake and exhaust mods will run more air through the engine, the Race ECM adds fuel. Modifying the intake or exhaust without a race ecm, (or other fuel management device) will produce lean running, hot engine, shorter engine life. Using the race ECM alone will cause the engine to run rich, foul plugs. Many people who modify their bike by adding an exhaust, ECM and air filter also modify the air box, by using an open air box conversion, or by drilling the box. Whether or not this is a good idea depends to some extent on the type of pipe being used. I do not believe that there is any well documented studies on this, I could be wrong. Kevin Drum, who makes the highly regarded Drummer mufflers, known for their wide torque range, has suggested that the stock air box provides more torque at lower rpm ranges. I would not argue with Kevin without a lot of testing to back me up, so I run a K+N, no snorkel, race ECM and the Original Drummer on my XB12Src. Bike runs great, excellent power right from the git go. Other high power, top end pipes might benefit more from an open air box, but I haven't seen any comparative tests that conclusively prove that. I run an open air box on my Nine with race ecm and original Drummer, and I will say this for sure: it is louder and it runs well. Just my .02¢ | ||
| Typeone |
Kevin Drum, who makes the highly regarded Drummer mufflers, known for their wide torque range, has suggested that the stock air box provides more torque at lower rpm ranges. I would not argue with Kevin without a lot of testing to back me up, so I run a K+N, no snorkel, race ECM and the Original Drummer on my XB12Src. Bike runs great, excellent power right from the git go. +1 on that setup except i have a Regular Drummer and TFI in the mix. i didn't like how my bike felt with a 'swiss-cheesed' inner airbox so i went back to stock. definitely felt like i lost some low-end grunt with it drilled. i haven't tried the 'open' airbox mod yet. | ||
| Vonsliek |
definitely find swisse-cheesed airbox ('05 xb12r racekitted) reduces lowend drive .. BUT .. it takes on a kind of 2-stroke powerband .. basically all the power resides from 5000-6300 revs .. engine gets a little warm in city traffic & it bumbles & lurches badly in general commute at 2000-4500 ... loud as hell & exciting to quickly rev up & thrash .. definitely for track riding. |
