Kawasaki ZX-12R from Wally

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Kawasaki ZX-12R from Wally
Volker Rost

Kawasaki ZX-12R from Wally

Kawasaki ZX-12R from Wally

Kawasaki ZX-12R from Wally

Kawasaki ZX-12R from Wally

14th photos

Kawasaki ZX-12R from Wally
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Roaring pipe. Infernal sound escapes from the elbow-thick elbow – uninsulated. The oil filter that was once in front of the engine had to be moved to the rear. The oil pan is shallower but wider for more volume.

Kawasaki ZX-12R from Wally
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The standard monocoque frame is compact and stable. However, removing the engine takes six hours. Self-constructed frame rear.

Kawasaki ZX-12R from Wally
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Typical turbo: bypass valve (wastegate) with separate outlet. It opens when too much exhaust gas flows to the turbine, thus preventing the supercharger from rotating too quickly.

Kawasaki ZX-12R from Wally
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Shift faster: pneumatic gear changes at the push of a button on the Ex horn switch. The hollow rocker serves as a compressed air reservoir for the Quickest Shifter.

Kawasaki ZX-12R from Wally
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The aluminum swing arm from the USA acts as a minimal rollover protection. It is a crazy 1.03 meters long, 92 centimeters between the wheel and swing arm axis. The footrests sit on the reinforcing beam.

Kawasaki ZX-12R from Wally
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At the rear there is a 190 mm Shinko tire “Hook Up Pro” with a flat 50 mm cross-section. At the front, the small 16-inch (130/60) also lowers the printed front.

Kawasaki ZX-12R from Wally
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Another monocoque: the self-made “body” is made of lightweight GRP. He moves Clemens “Wally” Walleit far forward into a deep, immovable seat.

Kawasaki ZX-12R from Wally
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Open fire! Manometer highlighted in black for the maximum boost pressure achieved. White: Air pressure display for the boost pressure control. Above it sit the shift light and display of sixth gear.

Kawasaki ZX-12R from Wally
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Charged. Behind the mighty K&N air filters, the compressor and turbine housing (from left to right) sit on one shaft. The selected boost pressure has a decisive influence on the performance.

Kawasaki ZX-12R from Wally
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Data: Water-cooled four-stroke four-cylinder engine with 28 PSI boost pressure around 507 PS at 11,200 / min (maximum speed: 12,400 / min, series: 178 PS at 10,500 / min), torque 343 Newton meters at 8,200 / min (series: 134 Nm at 7,500 rpm).

Kawasaki ZX-12R from Wally
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Wheelbase 1,730 mm, total length 2,350 mm, aluminum monocoque frame with self-made rear, 190/50 ZR 17 and 130/60 ZR 16 tires, weight approx. 220 kg, spring travel front / rear 50/110 mm, six-piston brake calipers front, Tank capacity around 3.3 liters, price: not for sale (parts for around 30,000 euros including base).

Kawasaki ZX-12R from Wally
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Concentrated load. A heap of technology meets the concentration of the masses – everything in front and below. The flat metal tank is upright, with the pump for the cooling water injection in front of it. Shortened fork with adapted innards.

Kawasaki ZX-12R from Wally
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The builder: The Berlin Clemens “Wally” Walleit (53) is a real veteran in the dragster races of the Super Street Bikes.

Kawasaki ZX-12R from Wally
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Racing requires a lot of team spirit: Mechanic Sven Hardell, wife Gundi, daughter Larissa (25) and son Ricardo (22, drives dragster himself) do a lot of shooting help.

Kawasaki ZX-12R from Wally

INTERMOT countdown part 9

From zero to 300 in just over 7 seconds: The dragster Kawasaki ZX-12R, built by Clemens “Wally” Walleit and his team, pulls the chain with 507 turbo hp, for maximum acceleration over the quarter mile. It takes guts – without a wheelie bar.

B.Searing smoke blows over the venerable Motodrom in Hockenheim. Engines roar, tires whimper, flames ignite from arm-thick exhaust systems. It is mid-August and the NitrOlympX, Germany’s largest dragster event, is taking place in the Palatinate. Incredible vehicles with two and four wheels are gradually at the start, jumping over the quarter mile in a knockout system. Petrol heads from all over Europe live and feverish to the beat of the “Christmas Tree”, the starting light. In the midst of the noisy, colorful hustle and bustle, Clemens “Wally” Walleit is at the start, bringing his Shinko tires to operating temperature by means of a hearty burn-out.

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Kawasaki ZX-12R from Wally

Kawasaki ZX-12R from Wally
INTERMOT countdown part 9

Power fuel at 9 euros / liter

The ball-bearing exhaust gas turbocharger from Garret shovels special fuel with 119 octane into the combustion chambers at up to 150,000 revolutions per minute. “In a 400-meter run, we burn around one liter at nine euros,” says Wally. Not a bargain, the power fuel. In the past, on his Kawasaki Z 750 Turbo, Wally drove with nitrous oxide injection. “But that is no longer necessary with much more powerful series machines since the Hayabusa.” Kawasaki freak Clemens Walleit faces the superiority of the larger-capacity Turbo Busas with a few like-minded people on the ZX-12R. “The top teams in our class have over 700 hp”, says Clemens Walleit modestly. “But that is a question of cost.”


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Around 507 hp are available at 11,200 rpm, while it was 178 hp as standard.

Because the technical effort is simply enormous. Reinforced valve springs are located in the cylinder heads and the transitions of all channels are machined. In addition, the cylinders have reinforced stud bolts for a tightening torque of 95 instead of 60 Newton meters. Larger injection nozzles with a maximum of 1000 instead of 290 cm³ passage per minute are located in the adapted throttle bodies. Only special forged pistons, forged Carillo connecting rods and the lock-up clutch with reinforced springs can withstand the special load. The faster the engine turns, the more the clutch closes, keeping the power in check. “A basic engine with series parts would not go 100 meters,” speculates Wally. Sven Hardell meticulously keeps a log of all work, modifications and settings. Performance is nothing without control!

Freely programmable ignition and launch control prevent a rollover at start. It is activated together with the boost pressure control when the clutch lever is pulled in first gear: A small trigger actuates the misappropriated headlight flasher switch. Open fire! “Even when the car is stationary, the turbo shovels with full boost – when I suddenly release the clutch, the full boost pressure is immediately there,” says Wally. In the race, when the shift light comes on (at 11,300 rpm), it shifts up pneumatically in milliseconds until the sixth is there. 80 milliliters of injected water per 400 meters cool the highly compressed intake air. The specially adapted DragShock strut from the US manufacturer Penske dips in slightly, then rebounds slowly: little compression meets a lot of rebound damping.

Turning circle larger than with semi-trailers

Everything here revolves around a great experience in a very short time. Just not too much: wheelies may look spectacular, but they take time. “It is ideal if the front wheel hovers very slightly over the asphalt.” Wally mentally takes you on the dragstrip: “Whether you interrupt a run or not is less determined by the height of the lifted front wheel than by the speed of the climb.” Full acceleration without rollover protection is just a ride on the knife edge. “If you’ve had a good run, the adrenaline will continue to pump in your blood for a long time!” (Wally). A lot of weight very far forward and down, the crouched appearance, 16-inch front wheel and above all the crazy long swing arm ensure traction and alleviate the tendency to wheelie a little. The regulations limit the wheelbase to 1.73 meters.

It is also important to have negative acceleration, to slow down again. “There are tracks where you have to go straight to the finish line,” explains Wally. The six-piston stoppers bite with racing pads, the rear stopper is operated with the left thumb. The specially shaped petrol tank at the front behind the fairing and a wider, flatter oil pan with baffle plates prevent the operating materials from sloshing back and forth. Maneuvering is tough, the turning circle is greater than that of any semi-trailer.

Unfortunately, the engine goes up on Saturday during qualification. Damn. And the brand new replacement engine has an oil pressure problem. That’s it, Wally’s team is passed from seventh to eleventh place within the FIM European Championship (!): “That’s Racing.” You screw up and suffer together. “We are trying to get our season goal of making it into the top ten to get back at the final in England,” sums up Wally.

Hot sprint races at INTERMOT 2018

There are even more spectacular bikes to marvel at on the first weekend in October in Cologne. There is a touch of motorcycle festival over the INTERMOT Saturday – blatant modifications and a lot of show. Under the direction and moderation of Jorg Litzenburger, known from Glemseck 101, it is then: “Full throttle until the tires smoke!”


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The “Sultans of Sprint” get down to business, like the hot laughing gas 1400 V2 from Radical Guzzi. It is driven in the knockout system.

For the sprints man against man (or woman) on the 1/8 mile, the rule applies: The winner takes it all. You can experience the Sultans of Sprint here as well as the INTERMOT International Class and numerous show sprints! Be there when the fastest custom bikes compete against each other. On the previous days of the fair, all bikes are also in Hall 10.1, where they can be inspected up close. So, off to INTERMOT 2018 in Cologne!

Special exhibition "Totally crazy": On the exhibition boulevard in the corridor between exhibition halls 6 and 9 and at the MOTORRAD stand in hall 9, stand A 41.

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