Entries by adrian

2 into 1 ‘Street’ Exhaust for BMW R100 Airhead

Images: With the kind permission of Jon-Lars Sorenson. More pics at: http://s44.photobucket.com/user/R90S/library/ hen designing exhaust systems for race engines, I pit a couple simulation programs against eachother. This has proved to yield pretty good base designs from which dyno tuning takes over: a complex world of interactions including the tricky relationship between exhaust design and […]

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 […]