CBR400RR NC29

This one is short and sweat, a simple bolt in mod in fact. The stock ignition has a hard red line, top speed restrictor and a restrictive ignition curve that an HRC ignition unit would sort right out along with associated HRC mods. Clearly these mods aren't about anymore but  GF Racing UK  have you covered with their fully programmable plug in ECU which conveniently comes with the HRC map already installed. I ordered mine after the dyno runs  previously mentioned and very quickly got an email from the owner of GFR. He didn't have an ECU in stock and offered to lend me his unit from his own bike! I was in no hurry for it so thanked him and waited patiently (what a guy though!). When the box did arrive, fitting up was a pretty easy process: Remove tail fairing on LHS. unplug and remove stock ECU. Fit GFR ECU under OEM ECU rubber boot. Plug in GFR ECU. Reassemble fairings. Then all all I needed to do was chuck my kit on and go ring the little CBR's neck! Th...

 I got asked to pop over to my racing teams new den on a cold January evening to get some photographs of the team dyno for a bit of publicity. The plan for it is to allow us to run diagnosis with various jetting and pipe set ups on our Classic race machines including; Yamaha RD250/400s, Suzuki X7s and a couple of Honda MT125s including my own RD250  as well as any other bikes we may be racing or simply playing with. The subject of the day was Andy's RD250 which was in the process of being prepped for next year (much like the rest of our bikes) but still looks presentable enough to demonstrate our new piece of diagnosis kit. After the shoot we slung the new CBR400RR on to see what she would do. As I had only really run the bike for a brief time, at fairly sedate speeds and engine RPM's, I wasn't sure what to expect. I didn't even know what the bike was supposed to produce. A search of the internet came up with various numbers but most seemed to sit around 50-55...