BSB Superstock 1000 racer Jonathan Howarth bought his 2011 Kawasaki ZX-10R in for a mid-season tweak recently; the first round at Brands Hatch was a bit of a disaster and he had a mishap after a coming together, but ever since he’s been making steady progress towards the front of the field, from the mid-teens to knocking on the door of the top 10, which is where he wants to be obviously!
If you didn’t read about it before the bike is a Mark Fisher prepared ZX-10 BSB Superstock bike; it’s running a full Arrow system, and we fitted a Cordona PQ8 strain gauge (ignition cut) quickshifter and Power Commander PC V. We also eliminated the lambda sensor, with a BSD Performance LEQ. It left our workshop with 193bhp (up 13bhp over stock, mainly due to the pipe) and a torque curve that kicked off at 8,000rpm (rather than 9,000) and has grown a couple of lb-ft everywhere.
Jonathan wanted his map rechecked, as after 6-7 rounds the bike had loosened up considerably and it needed more fuel in certain areas (interestingly, we had to take fuel out when the engine was tighter and now add it back in as it’s freed up), which goes to show that an engine’s needs will change over time. There were no major mods needed, just subtle tweaks and finessing to keep it as sharp as possible and keep the power delivery absolutely perfect. Check out Jono’s website to keep an eye on his progress (www.jonathan-howarth-racing.co.uk)