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"  Robert Lange&amp;#039;s Electric-Powered Motorcycle  We thought we&amp;#039;d found the cream of the crop when we published last year&amp;#039;s DIY Rally\u2014a roundup of 2007&amp;#039;s top gonzo projects from our readers&amp;#039; backyards. But when we reconnected with our winners recently, we discovered there&amp;#039;s no invention that can&amp;#039;t be improved upon. Here&amp;#039;s a totally new project from one of our inventors, plus a few creations that are getting a face lift. \u2014Emily Masamitsu   Robert Lange: Electric-Powered Dragster Keeping with his green theme, Lange is just putting the finishing touches on an electric motorcycle (pictured above) that he started working on in 1999. Built entirely by hand, the bike has a 10-hp (35-hp intermittent) motor and can run 1/4 mi. in 16.69 seconds at 70 mph. &amp;quot;This has been the most fun I&amp;#039;ve ever had building,&amp;quot; he says.   Nathan Moore: Self-Tending BBQ Moore&amp;#039;s BBQ already required less attention than your average smoker, but he decide to optimize it. &amp;quot;I reworked the damper that controls temperature, so it allows more air to flow through and heat the cooking chamber faster,&amp;quot; Moore says. Small mechanical tweaks also prevent heat loss and make the outside of the oven cool to the touch. His ultimate goal: Get the BBQ into production.   James Garlitz: Waterbike One cruiser just wasn&amp;#039;t enough for Garlitz\u2014a second iteration is in his garage and a third on the drawing boards. &amp;quot;I hope the third one will be a platform for a production version,&amp;quot; he says. The second model improves on the first with moveable parts\u2014retractable rear foils and a motor that folds into the frame\u2014plus a sleeker look and new, 40-hp Nissan engine.   David Hubbard: Biodiesel Motorcycle With a spring thaw hitting West Virginia, Hubbard reports he&amp;#039;s about ready to bring his biodiesel BMW bike out for a spin. But it&amp;#039;s in the lab where the fun has begun: He&amp;#039;s refining his fuel mixture and even planning to start producing ethanol. &amp;quot;One problem is that I haven&amp;#039;t had time to get a permit yet,&amp;quot; Hubbard says. &amp;quot;The state wants to know if you&amp;#039;re making alcohol.&amp;quot;   Time is running out to one-up last year&amp;#039;s DIY Rally winners! Submit your entry right here before April 1, and you could be featured in an upcoming edition of PM!   RELATED STORIES \u2022 SUBMIT NOW: Time&amp;#039;s Running Out for DIY Rally 2008 Entries!   "^^<http://www.w3.org/2001/XMLSchema#string>
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