Friday 31 October 2014

Oil cooler air duct

The oil temperature on my Hayabusa is a bit high on prolonged sessions on track days especially at Knockhill. I was either going to shift the oil cooler from behind the radiator to the front or duct some cooler air directly to the oil cooler. I decided to do the latter. It will still get some air from the front via the electric fan and water radiator.

New air duct
New air duct in place

From above

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Wednesday 15 October 2014

Concentric clutch slave cylinder

When I described my lack of clutch control precision with Andy from AB Racing he directed me immediately to a SBD part CLT-HCA-BUSA-01K. It is a custom billeted concentric slave cylinder for the Megabusa engine. The fitting of the part is fairly straight forward only having only to change the bleed pipe outlet from the water pump (as the rubber pipe was in the way). The pump housing bleed uniion was easily modified by cutting it off and tapping out the remaining steel tube stub to  a 7mm metric thread and making a brass union and installing a remote external 8mm brass elbow. The standard SBD fitting kit for the cylinder was perfect despite warnings from them that this part was designed to mount on top of their billeted oil pump.

Water pump modification


SBD part from top



Hewland part in same location

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