Hunwick Hallam's
X1R Superbike rolled out into the public gaze for its first time during round
one of the 1997 World Superbike Championship at Phillip Island. A brave move on
the part of the Australian Motorcycle Company, as the bike had not been tested
previously. Apart from running the engine up on a dyno, the X1R had never turned
a wheel before.
The bike was rolled out of the truck much to the awe of international Superbike
teams and the Australian public. A jet-black carbon fiber-covered beauty that
looked like no other. This wasn't any concept bike drawn up by underworked
Japanese motorcycle designers. This was the real thing. Sex on wheels.
Bike designer Paul Hallam had the honors of rolling the bike up to pit lane.
Clearly it was the moment he had waited for. After three years working in
secret, at last the world would see his creation. Would the bike start? Would
the bike run? What if....? A million questions going through the heads of all
who watched. Paul Hallam was quietly confident. The bike is bump started into
action. The sound is a beautiful thump that only a V-twin can offer.
Hallam handed the bike over to the highly experienced racer and development
rider Malcom Campbell, the only man to ever to win a race on Honda's notorious
NR750. Taking off from pit lane, Superbike teams were all outside their garages
watching history take place. Campbell and the X1R disappear over the hill on the
main straight to the delight of the patriotic crowd.
Paul Hallam was asked what he felt the highest pinnacle was so far in the
development of the new racing machine. "Here and now," was the reply. As the
bike came down the main straight it seemed that all the garages were empty.
Hallam's creation was on its first flying lap of any race track in the world.
On completion of the second lap Campbell pulled into the pits as instructed. An
eager Hallam awaited the news. "Power is great, needs some adjustment on the
rear suspension," comments the rider.
The Hunwick Hallam X1R entered its first competitive meeting soon after this
debut at round three of the Australian Superbike Series at Winton, Victoria.
However, Campbell crashed out of the race in a first corner incident with
another rider. The X1R had qualified ninth in wet conditions.
For the remainder of this year, the X1R will be competing in a special
"prototype" class for no prize money or points in the Australian Superbike
Series. The bike must comply with all Superbike Rules as per Motorcycling
Australia's General Competion Rules (GCR's), except for volume sales. GCR's are
identical to FIM rules for World Superbike, where the Hunwick Hallam team hopes
to compete by next season.
Source
Motorcycle.com
NO NEW MOTORCYCLE MARQUE HAS appeared on the world stage with as much
panache, or so unexpectedly, as Australia's Hunwick Hallam. It arrived on the
scene after three years of top-secret development, dressed to kill, funded by
Australia's largest bike retailer, Rod Hunwick, and engineered by cutting-edge
Superbike tuner Paul Hallam.
Produced outside of Sydney, in Parramatta, the radical, shark-nosed, 998cc
Hunwick Hallam XIR debuted in late March at the opening round of the 1997 World
Superbike Championship at Phillip Island, where former Aussie Superbike champ
Malcolm Campbell made a handful of high-profile demo laps. The bike had only
been completed the day before, and it moved under its own power for the first
time in front of 30,000 spectators and network TV cameras. That takes guts-and a
confidence in your product-that can only be respected.
So, can something that looks this good produce performance to match? Well,
after a solid day's testing at Sydney's Eastern Creek GP circuit on prototype
X1R racers, I have to admit that I'm convinced. Two bikes were brought to
Eastern Creek: the original Phase One version demonstrated earlier at Phillip
Island, joined by a Phase Three update with titanium rods, valves, springs, etc.
Hallam plans to incorporate pneumatic valve operation on the Phase Five version
(which will be featured on the street X1R, for Superbike homologation purposes).
I started out on the baseline "steel-engine" version.
First shock was the riding position. The way-out styling and droop-snoot nose
give you the impression of a very front-heavy motorcycle. It's an optical
illusion; you sit in a neutral stance with a balanced riding position. The width
of the carbon-fiber snout provides near-ideal aerodynamic protection for the
rider's body, as well as good airflow to the engine, airbox and forward-mounted
radiator nested in the shark nose. Crank up the engine, and get ready for
another surprise: It's not only surprisingly quiet, but it doesn't sound like a
Ducati Superbike at all, in spite of the identical 90-degree cylinder angle. The
Aussie V-Twin has a higher-pitched exhaust note that sounds taut and revvy,
rather than butch and torquey-even with a longer, 67.5mm stroke than the Ducati
or other current V-Twin Superbikes.
You can't fail to notice the torque. The XIR pulled like a turbocharged
tractor out of Eastern Creek's tight first hairpin. It'll launch from its high
2000-rpm idle hardly using the clutch, and from 4000 rpm up pulls hard, with a
kick in the powerband around 7000 rpm. Just over 10,000 rpm, the steel XIR
starts to run out of breath, though according to Hallam, it has run safely to
12,000 rpm on the dyno, delivering an almost unbelievable 176 peak horsepower at
the rear wheel. There wasn't any trace of that kind of engine speed, or
performance, in the Phase One bike at Eastern Creek. In five-speed, steel-engine
guise, the X1R feels to have a similar level of performance to a street Ducati
955SP-impressive, but not earth-shattering in Superbike terms.
After a couple of sessions totaling 20 laps or so on the Phase One bike, they
gave me the keys to the Phase Three version. Whereas the steel engine is slower
and more punchy in its pickup, the Phase Three titanium powerplant ("tit-motor"
in Aussie-speak), fitted with the six-speed gearbox that will be standard on the
XIR road bike, has an appetite for revs and throttle response that is
dramatically enhanced.
You'd swear from riding the two bikes back-to-back that they had different
cam profiles and fuel-injection mapping, but Hal|am insists this isn't so. "The
two engines are essentially identical apart from the gearbox, even down to the
same 11.8:1 compression ratio and choice of ignition map. It's a
Hunwick Hallam goes after Ducati dramatic confirmation of how much power can
be unlocked by reducing the inertia of the bits that go up and down inside the
engine," he says.
I'd never had a direct comparis between the same engine with titanium and
steel internals, but my experience with the X1R made me a believer. It's the
snap from the engine that's most noticeable, the way the engine speed picks up
so much faster from down low. Yet this enhanced engine response hasn't been
obtained at the cost of the excellent midrange torque, which is as strong as
before.
The potent engine forms part of an innovative chassis design. A WP
upside-down fork is hung from a cast-alloy backbone, with the engine forming an
integral part of the chassis, and the conventional aluminum swingarm pivoting in
the crankcases, Ducati-style. The rear shock is located off to the side and
pretty far forward, increasing front-weight bias and leaving space for the
exhausts to exit cleanly under the seat. The shock is operated by an alloy rod
with a rising rate linkage at one end.
The bike refused to shake its he; over bumps or ripples, even when cranked
over, and was very stable under power. Though I can't say I rode the X1R at
racing speeds, I certainly pushed it plenty hard enough to be
impressed-astonished, even-with the handling package. Getting the XIR's handling
so well straight out of the box is a genuine achievement, and augurs well for
the development of the street version. In titanium form, I'd say the X1R is
roughly equivalent to a '96 Ducati 955 Corsa, the base bike Carl Fogarty used to
win the World Superbike title in '95.
There's no getting away from it: Hunwick Hallam has delivered the goods. We
could be witnessing the emergence of a new V-Twin perforformance benchmark.
-Alan Cathcart
Source Cycle World 1997
Any corrections or more information on these motorcycles will be kindly appreciated.