The Briggs & Stratton World Formula is a high-performance 204cc, 4-stroke racing kart engine designed for competitive...

So its a challenge you want Cookiedaboi? Well I'll give you one. hehe see if you can beat this!

i will say that sixth is 0.13 soo could make up for 700 MPH

they say theres no such thing as too much rpm maybe fourty five thousand is enough made on purpose too challenge rhin...

Burt Munro spent 50 years turning a 1920 Indian Scout into a world-record streamliner. He hand-cast pistons with a bl...

i dont know how i made this work but it does

i have improved the gearbox timing rpm limit etc and now its capable of 62 mph

The 1950 BMW R25 features a 247cc single-cylinder engine with a square 68 mm bore and 68 mm stroke. Utilizing an over...

Based on Hugh's HandBuilt specs, this configuration models a modified 1970-83 Yamaha XS650 with a 750cc big bore kit,...

biblically accurate circle levels of performance

I tuned the exhaust to make it sound similar to a G80 M3. Power figures are close, with torque being a bit down. Code...

its now a pentagram not star of david

the crank has a wierd rotational path due too piston layout it acts like V on fire 1 and on fire 2 goes inline

pretty cool 2cyl per bank layout

hits 12k rpm and the pistons are on the verge of sliding out