Entries by adrian

High Ratio Rocker Design

ere’s a sneak preview of the high ratio rockers I’ve been working on. With the stock rocker shaft position and my tapered pushrods, 1.45 is the highest obtainable ratio before the pushrods clash with their tubes. So the shaft will need to be moved which means custom shaft and posts. Shooting for a ratio of […]

Salt racer motor Mk11

Here’s the short block for the Salt Racer Motor Mk11. It’ s been 18months since the unfortunate demise of Mk1 on the dyno 3 days before leaving for the 2016 event. Bit of a late start with 6 months till the 2018 event, but not due to pure slackness – I’ve been delving into the […]

skrunkwerks BMW R100 salt racer

Here are the final studio shots of the salt racer after the 18 month build. If you haven’t been following the build blog, here’s a quick run-down: The frame was heavily modified and strengthened  – most of which is hidden under the tank. The front end is from a GSXR 600, and rear suspension is […]

BMW airhead rocker geometry

Finally getting to the meaty end of the salt racer build. While the crank is off getting balanced with the new pistons and rods, I had a look at the rocker geometry. With the high lift cam (about 12mm at the valve) and recessed valve seats the geometry did not look good. With valve fully […]