Stacy Smith Drag Bike 2009 Suzuki Sportbike
Stacy Smith Drag Bike 2009 Suzuki Sportbike. For more info on Stacy visit us on Facebook, MySpace or Twitter via www.yamahazsuzukioftexas.com Bike Info:Motorcycle: 2007 Suzuki GSXR 1000 Engine mods: JE turbo pistons, standard bore, ceramic coated tops, Teflon coated skirts; Falicon Knife Rods; Exoticycle custom wrist pins; stock crankshaft; Koenig 1-1/2 inch billet oil pan, Vanson diaper; Exoticycle Johnnie turbo internal oil pressure modifications. Cylinder head: Ported and combustion chamber was modified for turbo use by Competitive Edge, the deck was surfaced and o-ringed (required for 500hp) by Exoticycle. Valve train is completely stock. turbocharger/electronics: Velocity Racing GT30 Stage III Super Street piggyback turbo kit, 54 mm inlet and Exhaust diameters, data-logging with Velocity Racing software; Exoticycle Johnnie turbo single-stage Boost controller; Stock ECU Clutch/Transmission: Falicon billet clutch basket; Exoticycle single-stage lockup clutch, Exoticycle clutch cover; stock, OEM transmission (bone stock absolutely no modifications). Chassis: Velocity Racing under-braced swingarm, yielding 64 inch wheelbase; G.M.D. Computrack shortened and re-valved factory forks, Olins by Brocks Performance Drag Shock Driveline: Vortex Cat-5 rear sprocket; Vortex front sprocket; Gold DID X-ring 530 VM chain Wheels/Tires: Stock OEM wheels; Michelin tires by Richies Tires: front - Michelin Pilot Power 120/60-17; Rear - Michelin Power Race (soft) 190/50-17 Brakes: Stock OEM calipers, rotors, pads and master cylinders; Galfer Steel Braided brake line Controls: Vortex rearsets; CRC Adjustable Roll-a-click levers; Exoticycle Air-Shifter Body: All stock except for rear hugger fender (stock from 92 Suzuki 1100); Zero Gravity double-bubble windscreen; custom-trimmed factory seat; Vortex mirror block-off Fuel: VP C-16 gasoline Numbers: 615 pounds with rider, 64-inch wheelbase, 3.5 inch ground clearance Best Performances: 1.359 60 foot; 5.08 1/8 mile; 7.60 1/4 mile at 202 mph Built by Exoticycle: Sarasota, Florida, 941-360-FAST
2008 Prostar Motorcycle Drag Racing Finals.avi
Pro Street Qualifying Runs 2008 Prostar Finals Valdosta, Ga.
Sportster drag racing helmet cam
Practice day at Reading Motorcycle Club. www.pro109.com Was running around 6.1 seconds @ 83 mph all day. 500 ft. track. Bike is an 02' Sportster will run 11.73 @ 110 in the quarter.
Dragshock™ / Dragshock EZ™ Suspension Demonstration
Brock's Performance president, Brock Davidson, an avid performance enthusiast and past national championship winning rider as well as tuner, explains how to adjust the rear suspension on his BMW S1000RR 'Christine' for drag race use. Follow along as he explains how the rebound dampening functions as it relates to the launch and down track acceleration between himself and his lighter 'jockeys'. Note: At 9/16th sag using a 95 Newton (542 lb.) spring with a 150 lb. rider in the saddle, a rear tire pressure of 12 psi is used. Brock's weight of around 210 lbs. suited brings the sag to 1" and a tire pressure of 18 psi is used. The bike squats a bit more than optimum, which means the spring preload should be increased a bit, or the spring rate might need to be increased -- BUT, the object is for this bike to be as fast as possible with the smaller riders--not tuned for him--so only tire pressure adjustments are made. Slick track = more rebound dampening added, more squat for more traction. Less tire pressure, if possible. Sticky Track = more spring preload, less squat, more tire pressure... although light riders tend to spin, so lower pressure is generally used. (see Jeremy's run at beginning of video, it is very close to perfect.) Bumpy Track = If the racing surface is exceptionally bumpy, the rebound dampening must be reduced (example adjust from -15 clicks to -20 clicks) to prevent high speed 'oscillation'. Stock or Short Wheelbase Applications = Stock/Short wheelbase bikes do not require as much 'squat', because they are not as prone to spinning. Since more squat leads to additional traction, this can also cause stock wheelbase bikes to wheelie. As a result, we would have a bit more static spring pressure dialed in, with more compression dampening and less rebound dampening (to force the front end back down as the rear rises). Special thanks to www.dragbikelive.com for the video coverage. Also note: This advice applies to all makes and models. The BMW S1000RR shown was simply used as a handy example for this particular video. Spring rates will differ between makes/models. Visit http://www.BrocksPerformance.com for additional information, installation instructions, information forums, and FAQ sections.