Attack Racing Yamaha YZF1040 From The 1996 UFO Comparsion | Super Streetbike

Attack Racing Yamaha YZF1040 From The 1996 UFO Comparsion

An early demise to a strong Yamaha performance

This article was originally published in the October 1996 issue of Sport Rider.

The Yamaha banner flew proudly with Attack Racing’s super­serious entry, a hotted-up FZR1000 engine stuffed into a superlight, track-ready YZF750R chassis. Attack’s UFO came straight off the racetrack with a quick stop for a set of DOT-legal Michelin Hi-Sports, a sidestand, “headlight” and the addition of a little blue bottle that squirts nitrous oxide into the already potent engine. Attack’s Richard Stanboli unloaded a bike capable of winning the racetrack section and, with the help of the NOS system, also capable of stretching its legs over 200 mph; unfortunately, that mark was never realized due to a stuck oil-pressure by­pass valve and the resulting over­pressurization of the engine. The oil-filter gasket blew, spew­ing oil onto the rear tire and high-siding Mr. Holst and the Attack YZF at 100 mph on the Honda test course.

Attack Racing Yamaha YZF1040

Attack Racing Yamaha YZF1040

Sport Rider

Pre-offroading, Attack’s attacker commanded our attention with an excellent showing during our canyon riding and some of the quickest normally aspirated dragstrip runs we’ve seen in a long time. Despite the lack of mirrors or a license plate, our testers commented on the streetability of the Attack package, noting the precise, exact handling of the tight YZF chassis, excellent ergonomics and babbling over the thrill of ac­celeration. The FZR five-speed shifted precisely and the entire package screamed racebike in its tight, fight-ready stance and appearance. Stanboli told us, “Most good racebikes will make good streetbikes because you need a complete package on the track, not just big horsepower.”

Attack Racing Yamaha YZF1040

Screw-on velocity stacks hold the AirTech carbon-fiber pressurized airbox in place; the 42 and 43mm Keihins breathe filtered air from under the bottom triple clamp (the top clamp is magnesium). The left bar switch cues the time-delayed NOS nitrous-oxide system.

Sport Rider

NOS had provided Stanboli with a prototype timed-delivery system, which Attack didn’t have time to de-bug, so the quick quarter-mile time came sans juice.

The strongest points of Attack’s effort must include the bike’s look. AirTech provided the carbon-fiber bodywork, factory-Yamaha-replica fairing and carbon-fiber fuel tank and matched it with the AirTech TZ250 Aero seat made to resemble the Aprilia 250 tail­section that Max Biaggi made famous. Attack reworked the subframe to attain that sexy unsupport­ed look and had Cycle Graphics spray on the purple and white graphics. The Attack-braced swingarm rides on Attack’s own swing­arm inserts to adjust pivot height. In fact, Attack’s 3000-square-foot shop handles all the welding, fabricating and machining needed to produce the bike’s ported head, triple clamps, rearsets and even the works-style radiator. The whole package weighed in at a scant 364 pounds dry, second only to the stripped-down Team MR. CBR900RR.

Attack Racing Yamaha YZF1040

For street life, the compression of the 1040cc Attack engine was dialed down to 12.8:1 and felt great in the canyons, yet still turned 148.8 mph in the quarter. Attack produced the billet aluminum footpeg brackets, shifter and cable-clutch conversion hardware.

Sport Rider

The gold-nitrided fork sliders look like Öhlins, but are actu­ally KYB parts nitrid­ed and re­worked by Race Tech and matched to an Öhlins rear damper with hy­draulic pre­load ad­just­ment. The high-quality sus­pen­sion compo­nents are coupl­ed with Marchesini wheels (3.75- and 6.25-inch) and Brembo GP calipers running Ferodo rotors and pads, tied to an AP billet master cylinder. Our short pre-crash track laps brought home two main points: The brakes were terrific and the carburetion (42/43mm Keihin FCR taper-bored by Attack) was right on the money. The bike was strong but, unfortunately, the oil pressure was stronger.

Attack Racing Yamaha YZF1040

The YZF’s Öhlins shock works through these custom links designed and milled by Attack. Varying the link geometry affects everything from spring response to ride height and suspension progression.

Sport Rider

Attack Racing Yamaha YZF1040
Test Track Lap Time 1:56.03
Quarter-mile Time (sec) 9.67
Quarter-mile Speed (mph) 148.8
Dry Weight 364 lbs
Temp Gauge
High Low
Race-proven package Lacked street paraphernalia
Striking looks Nitrous system was never debugged
Surprisingly streetable
The oil pressure and replacement cost

ENGINE

  • Wiseco 1040cc piston kit, ceramic- and moly-coated; 12.8:0 compression
  • Carillo rods
  • R/D valve springs
  • Attack Racing Stage 2 intake porting; Stage 4 welded and CNC-machined D-port exhaust porting; stainless lightweight intake and exhaust valves; ceramic-coated combustion chamber and valve faces; bronze-alloy valve seats; lightweight wrist pins; lightened crankshaft; modified oil and water pump; mechanical clutch conversion
  • Yamaha Superbike kit exhaust cam
  • Barnett Kevlar clutch kit, clutch cable
  • 42/43mm taper-bored Keihin FCR carburetors with Attack side-pull conversion
  • NOS timed/progressive nitrous oxide system
  • Kerker custom exhaust system
  • AirTech pressurized airbox
  • Redline 30-weight oil, Water Wetter
  • VP Fuel, C14 and C16

CHASSIS

  • AirTech carbon-fiber fuel tank, bodywork and front fender, including TZ250 Aero seat and foam pad
  • Attack Racing adjustable triple clamps with magnesium top clamp; fairing brackets and dashboard; magnesium rear brake caliper bracket; braced swingarm; billet rear sus­pension link; radiator; rearsets; removable subframe
  • Cycle Graphics paint and graphic design
  • AP front brake master cylinder
  • Ferodo front rotors, brake pads
  • Brembo GP front and rear brake calipers
  • Öhlins shock and steering damper
  • KYB fork
  • Race Tech Gold Valve fork kit; titanium nitride fork-tube coating; hard-anodizing on outer fork tubes; Gold Valve kit for Öhlins shock
  • Marchesini wheels
  • Sprocket Specialties front and rear sprockets
  • Michelin TX-15 tires

  • Replacement cost: $36,000

The 1996 UFO bikes continue! Click back onto SSB next Monday for a closer look at the Team Mr. Honda CBR900RR Turbo.


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