Performance Bikes Magazine


May 1991

Katana

 

There are a lot of radical Katanas around, but not many as well executed as this.  There are a lot of proud owners about, but not many as outspoken as this;
    "This is a genuine Reader's Special, built by a reader, not one of your Spondon this, Dream Machine that or the other bikes, with big cheques flying all over the place.  What's the point in riding around on a special that someone else has built?  All the work (apart from the motor) has been done by me or my mates.  I made the torque arm, wheel spacers etc. and a mate did the paint job.  He's not even a pro paint sprayer, he works for a firm making bearings.  It's 100% paint, no stickers there.  If you think it's loud you should see it in daylight!"
    Loud it most certainly is and, although the design may not be to everybody's taste, it is an incredibly high quality spray job as well, particularly considering that it was done by an amateur in his spare time.  I don't suppose that the exhaust note is the quietest thing the local constabulary have ever heard either.  They can at least take solace in the fact that with l0lb of boost giving somewhere around 200 dyno-proved horses it doesn't stay around for long.  According to Nigel it can spin the back wheel at will . . . at 100mph!
    The bike was bought in rather tatty condition just over a year ago.  At the time it was standard except for the engine, which was more or less as it appears here.  Nigel has checked and rebuilt it but since it was already giving so much power there was no point in going further until the rest of the bike had been subject to a complete rethink.
    It's fairly obvious from the extended swing arm where Nigel likes to spend his weekends, but the rest of the chassis and suspension mods could usefully be cribbed by any Kat owner who wanted to bring his handling and braking up to match the engine's performance.  Not only does a move to EXUP wheels and forks look a lot better, it also allows access to all the advances in tyre technology that have appeared in the decade or so since the Katana was first introduced. In this case a 120/70 VB17 Avon replaces the original skinny front nineteen incher.  The forks contain 32mm spacers, preloading the springs to cope with the extra weight of the Suzuki.  I would have thought seriously about having the frame braced to cope with the extra load from modern tyres and a highly tuned motor, especially around the notoriously bendy swing arm pivot, but Nigel seems happy, doesn't use a steering damper and his tyres show signs
of use all the way to the edge, so who am I to argue?
    Nigel plans to race the bike over the quarter mile this year, but he's not sure whether to go any further in the quest for ultimate straight-line performance.  He's gone about as far as possible without making it unrideable on the road, which would defeat the object of the bike.  It would also start to swallow up a lot more than the six grand that the project has cost so far, most of which was spent on the motor by the previous owner, who then swapped it for Nigel's 750 Slingshot.  One thing he is sure about though, is that unlike a lot of bikes featured on this page, this Kat is not for sale; `It's taken over a year to build and I'm going to use it.'

KR

SPECIFICATION

Engine

'82 GSX1100 stretched to 1170, running low compression pistons with Cosworth rings to suit the competition spec Mr Turbo kit, welded crank, billet clutch, heavy duty studs, valves and springs and a high output V&H oil pump. Dyna coils and ignition pickups.

Chassis

Standard frame with 4in longer GMC swinger, FZR1000 front end, Street Stroker shocks, home-made wheel spacers, chainguard and rear brake torque arm.

Wheels, Brakes and Tyres

FZR1000 wheels and brakes front and rear, Avon front tyre, Michelin Hi-Sport rear.

Bodywork

Standard Katana, with boost gauge and FZR filler cap mounted in the top of the tank by the owner. Paint by Peter Ward.

Without Whom

Nigel would like to extend his most heartfelt felicitations to Paul Hobbs (0803 864303) for Goodridge and advice, Colin and Andy at Breakin' Bikes (091 261 9169) for all the FZR bits, MXA for the pink seat cover, Peter Cockburn, Nobby Muse, Mully, Dough, Norman, Chris, George and I Keith for the van.

 

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Copyright ©1991 EMAP Plc.

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