The Febur lower radiator extension first announced back in January 2019 has finally been installed on our Kawasaki Supersport machine, along with some shiny (and bright orange) 'kit-type' silicone hoses. The radiator extension was previously installed on a NP Motorcycles British Supersport machine, so we knew that fitment should be relatively straightforward.
The lower radiator extension in it's former life
The 'kit-type' water hose arrangement moves the oil filter cooler hoses into the main waterways - to reduce the water temperature circulating through that section. On the diagram below you can see the changes made.
Stock (left) versus Kit (right) water hose routing
Prior to fitting the radiator extension, we acquired a new (more sturdy) stone guard that matched the main radiator guard - this needed to be cut to shape, so a template was made to define our required dimensions and then cut out. Once the edges were lined we spaced the guard from the radiator using a combination of rubber pipe and cable ties.
 From a sheet of mesh... |  ...we defined a template... |  ...and created a bespoke guard! |
 Fit to the lower radiator extension... |  ...with a gap to allow deflection |
The mounting fixtures were prepared, then painted and now look like new. With all of this 'shiny newness', the radiator water expansion bottle was looking decidedly dirty, so received a thorough cleaning! With everything assembled and mounted, here are some "before and after" photos! :-)
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In the case that we ever decide to remove/disconnect the radiator extension (e.g. due to a water leak or the bike running too cold), we have acquired some straight pipe connectors to bypass the T-pieces so that only the main radiator is used - and importantly, mean that we can continue racing.
Bypass Pipes
Our next outing will be with the No Limits club at Oulton Park on 14th/15th August 2020, so we will be closely monitoring running temperatures during that meeting. We'll let you know what difference the changes have made! :-)
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