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Oil cooler for a standard GSX 1100 Katana

Posted: Tue Aug 11, 2026 9:19 am
by Dave.carter
Hi all.
I live in Cheshire, who is the best tuners to fit a oil cooler and gas flow my cylinder head?
Thanks for any info.

Re: Oil cooler for a standard GSX 1100 Katana

Posted: Thu Aug 13, 2026 9:35 pm
by Kryten
Chris at Grumpy1260 rebuilt the motor for my 1000SZ, but I have yet to run it :roll:
He can also supply the cooler, hoses, adaptor and bracket.

One my friends took the 750 donkey from my Kat and Chris rebuilt the bottom end for him. It’s been thrashed, as an 816, round many racetracks and is still going strong.
Victor Four, aka Jonty, has had some work done to his Kat (and possibly his Yamaha Turbo) by Chris

Peter Stansfield has a good reputation, but other than buying a set of barrels and pistons for the aforementioned Kat I haven’t used his services.

Re: Oil cooler for a standard GSX 1100 Katana

Posted: Sat Aug 22, 2026 2:18 pm
by Kryten
Another person to try would be Roger Upperton. I think he is up your way.