2001-2002 SUZUKI GSX-R1000 modifications
FastDates.com's factory support team Corona Extra Suzuki is racing the current Suzuki GSX-R1000 in the AMA National Formula Extreame Class for 2002. These are essentially full-own Superbikes with the allowable modifications to the engine, suspension and chassis. Although the Extreame bikes are built up from box-stock production bikes with pretty much readily availalble aftermarket parts, as opposed to real race spec factory built 750cc Superbikes where most of the components are pretty much unavailable to the general public.

Because the GSX-R1000 is already one of the Open class leaders when it comes to both power and light weight, you really don't have to go far to upgrade the bike's performance for street use. Perhaps a top line Fox, Ohlins or Penske rear shock, together with magnesium race wheels are your most sensible and cost effective chanes to improving the chassis.

But the first of any modifications of course, the one that offers the most cost effective way to improve performance for both reducing weight and improving power, is a race quality exhast system froma well know Suzuki exhaust builder like Akrapovic, Yoshimura, or our own Corona Extra Suzuki team exhaust system supplier Leo Vince.

Bolting on that full race quality exhaust system should help you realize a small power increase, but perhaps at a decrease in rideability. You won't make the best possible power with your new exhaust system until you recalibrate the bike's fuel injection system to compliment the improved exhaust flow. The Fuel Mapping Mixture Ratio and Dyno Charts included here show you what you can expect with: 1). Stock GSXR1000, 2). Race Exhaust System , 3). Race Exhuast with a Yoshimura EMS (Engine Management System) module adjusted for best fuel mixture and power.

Both DynoJet and Yoshimura can help you in this area with adjustable fuel and ignition remapping electronic modules which clip into the bike's stock wiring harness. Both companies will provide you with suggested programs /settings to fit your GSXR's particular engine modifications and riding/racing applications. But if you are a big-bucks factory race team and you want to get the fuel ratio perfect for maximum power throughout the powerband, you do calibrate it to your particular bike on a dyno. But for any street riding application the suggested settings from Yoshimura or DynoJet will be close enough.

Below: The Yoshimua Engine Management ignition and fuel remapping module EMS, and other goodies.

SUZUKI GSX-R1100 OPEN-CLASS SUPREMACY
Recently named Sport Rider Magazine's 2001 "Bike of the Year", the GSX-R1000 has proven itself to be the class leader in open-class sportbike performance. For 2002 the GSX-R1000 now features two new paint schemes, including a stunning new red and black combination, new bolt-on bungee hooks, and a sharp new polished stainless steel exhaust. Building on the impressive and award-winning technology of the GSX-R750, the GSX-R1000 combines a powerful 988cc 4-stroke, 4-cylinder liquid-cooled motor, strong and lightweight chassis all wrapped in an aerodynamic and aggressively designed package.

The GSX-R1000's 988cc 4-stroke, 4-cylinder, 16-valve liquid-cooled engine is similar to the GSX-R750, but with an increase in bore and stroke. The GSX-R1000 crankcase, crank journals and clutch are wider to accommodate the larger displacement. The engine also features wider transmission gears, an oil cooler system and a compact counterbalancer mounted ahead of the crankshaft. Suzuki's Dual Throttle Valve System (SDTV) fuel injection system assures the rider smooth and precise throttle control thanks to the step-motor control mounted directly to the throttle bodies.

The GSX-R1000's unique 4-into-2-into-1 exhaust system features titanium, stainless steel and aluminum construction to reduce weight and the digitally-controlled Suzuki Exhaust Tuning (SET) system. The SET system utilizes a servo motor-controlled butterfly valve which closes in low RPM situations creating increased back pressure and low end torque while also reducing exhaust noise. As RPM increases the valve progressively opens to reduce back pressure and increase mid-to-high range power.

The chassis of the GSX-R1000 is built to the same basic design of the GSX-R750, but balanced to match the increased engine size, weight and power delivery. The aluminum alloy twin-spar frame is 0.5 mm thicker for increased strength with two engine mounts on each spar in comparison to the 750 with two on the left and one on the right. Rake angle and trail remain unchanged from the 750, as well as the handlebar, footpeg and seating position. A fully adjustable 43 mm inverted KYB fork with titanium nitride coated stanchion tubes handle suspension duties up front, accompanied by a fully adjustable aluminum-bodied shock absorber at the rear. Front brake calipers are staggered-diameter six-piston units combined with lightweight 17-inch wheels, and radial tires front and rear. Aerodynamic bodywork with ram air inlets along with a one piece headlight design and compact digital instrument cluster complete the GSX-R1000. GSX-R1000, your ticket to open-class supremacy.

GSX-R1000 (K2) AT A GLANCE
Suggested Retail: $10,399.00
Engine Type: 4-stroke, liquid-cooled
Bore and Stroke: 72.0 mm x 46.0 mm
Front Brake: Dual Hydraulic Disc
Rear Brake: Single Hydraulic Disc
Wheelbase: 1410 mm (55.1 in.)
Dry Weight: 170 kg (374 lbs)