Matt Haunold

matt@haunold.com.au

Taking three years to build the 2003 Suzuki GSX1300R Hayabusa was converted from street trim to an extended wheel base turbo charged drag machine.  After 4 years of drag Racing Matt Haunold’s desire to go faster led him to attempt the conversion with a main goal of manufacturing as many components as possible for the turbo charged bike himself.

After manufacturing headers, exhaust, plenum and turbo up pipes the base of the build was completed with a Garrett GT2860 turbo attached. The motor was decompressed by way of a 2mm spacer under the barrel to allow the turbo to force feed massive amounts of air without destroying the motor. The standard head bolts were replaced with heavy duty studs to keep the top end snugly in place.

By this stage the build took on a life of its own so a 9 inch extended swingarm was added with a AMS1000 CO2 operated boost controller and a Hays lockup clutch. It was also decided that higher boost levels would be desirable so the plenum was then converted by Matt to encompass water to air intercooling which would prevent detonation on higher boost levels. The fuelling was finished off with a  set of WRX 460cc fuel injectors and a bosch 910 fuel pump to allow a potential 330hp to be delivered at the back wheel. Injectors would be controlled by a boost referenced piggyback fuel controller intercepting the injector signal from the stock ECU. Gearshifts would be carried out by a CO2 feed pneumatic actuator to allow for seamless wide open throttle gearshifts preventing boost drop on gear changes and lost time through backing off to change gears.

First tests on the bike have yielded a personal best time of 9.42 seconds on the ¼ mile at a meagre 140mph (due to clutch slip) on 9psi of boost. It is anticipated that the bike can achieve a mid 8 second pass at 160+mph on 15psi of boost once fine tuning with fuelling, gearing and clutch has been achieved. Multiple parameters are being data logged through an innovate DL32 data logger including boost, rpm, wheel speed, fuel air ratio, g force and more parameters available as required.

Currently Matt is racing in Group 3 Modified bike but a shift to Group 2 Competition Bike will happen in due course as R&D yields better times. Matt races at the Perth Motorplex in Western Australia which is renowned for being one of the best ¼ mile tracks in the world.