Sunday, May 01, 2011

Sims Motorsports’ 370km/h Suzuki Hayabusa

modified Suzuki Hayabusa modified Suzuki Hayabusa modified Suzuki Hayabusa modified Suzuki Hayabusa
With NOS and a host of aftermarket parts, Richard Sims' Hayabusa will, if you're so inclined, hit a top speed of around 370km/h. No, it's not meant for fetching groceries from the supermarket...

From the pages of Sport Rider magazine, this is Richard Sims’ (of Sims Motorsports) hot-rodded Suzuki Hayabusa and its claim to fame is that it can hit a top speed of around 370km/h. Unless you’ve got a Bugatti Veyron parked in your garage, you probably don’t want to race Richard’s bike…

The list of mods on this Hayabusa is, of course, very long. The engine has been bored out to 1510cc and Richard has fitted 86mm forged pistons, billet big block cylinder assembly, high-lift camshafts with adjustable cam sprockets, stainless steel valves, ceramic bearings in the front and rear wheels (for reduced rolling friction), a two-stage lockup clutch and an air-shifter system for quick, smooth gear shifts. A Schnitz PNC-3000 nitrous controller and Bazzaz Z-Fi fuel computer have also been fitted to control the bike’s ‘wet’ (one that injects both fuel and NOS) nitrous injection system.

There’s also a double bubble windscreen, ultralight BST carbonfibre wheels shod with Avon VP2 Sport tyres, Brock's Performance titanium exhaust system, Öhlins FGRT 43mm USD forks, fully adjustable rear shock and Beringer brakes with four-piston radial-mount calipers and twin 310mm stainless steel discs at the front. There’s the inevitable extended swingarm, but we suppose that’s necessary for dragracing and high-speed runs, which is what the bike has been built for. In fact, Richard has had the stock bike’s 295km/h speed limiter removed, the rev limiter has been tweaked to allow the engine to rev up to 12,000rpm (11,000rpm for the stock bike) and when the nitrous system is activated, a special feature retards the ignition by 10 degrees.

In recent years, motorcycle manufacturers seem to have gotten over their obsession with top speeds. Perhaps safety legislation has something to do with it, or maybe it’s down to new-age eco-consciousness, but talking about 300+km/h top speeds isn’t very fashionable these days. The 1990s Kawasaki ZX-11 could hit a top speed of around 280-290km/h. The new BMW K1600GT, with its 1600cc, 160bhp six-cylinder engine, can barely hit 230km/h. It’s not that manufacturers can’t build faster machines, it’s just that they don’t want to, there’s not much point left in making motorcycles that can hit 370km/h. Somebody, however, forgot to tell Richard Sims. And that’s a good thing.

Source: Sport Rider

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