Introduced by BMW Motorsport towards the end of the factory racing effort in order to squeeze every last bit of power out of the S14 power plant.
See how rod ratio affects crank normal force and cylinder side-wall loading.
See how rod ratio affects piston position, speed, and acceleration.
A historical look at carbon fiber airbox development for the S14 engine.
Compararison of the 215HP, Evo III and Honda S2000 cylinder heads.
A unique valve with a 7mm to 6mm stem diameter.
An examination of the 4 cylinder exhaust with X-Pipe.
A look at the various features of the S14 exhaust center section.
Measuring the cylinder wall thickness on a bored S14 block.
Photos ofintake/exhaust ports on TMS Stage III S14 cyl. head.
Evo III intake gaskets vs. original 2.3L intake gasket.