Can anyone point me in the direction of a 1/2" to 8mm reducer?
I'm trying to fit a P/S cooler as I'm boiling it on track, I've picked up a cooler with 1/2" unions, come to take the return hose from the rack off and it's 8mm ID.
Any suggestions?

Something like this maybe?
http://www.advancedfluidsolutions.co.uk/13mm--8mm-12---516-brass-reducer-hose-connector-joiner-1338-p.asp
With a couple of short lengths of 12mm hose and the rest 8mm... like:
http://www.advancedfluidsolutions.co.uk/8mm-516-saej30r6-rubber-fuel-hose-610-p.asp
and
http://www.advancedfluidsolutions.co.uk/13mm-12-saej30r6-rubber-fuel-hose-612-p.asp

All you really need to do is make up a coil of 8mm tube around a broom stick and place in a cold air flow, adding a big oil cooler will be a bit overkill.

Is the reservoir in a hot place, what's it on BTW?

Regards Mark

Currently it's on the MX5.
The res is not really in a hot place, even with the headlight out its still getting toasty after 30 minutes out on track.