Koenigsegg free valve system

[cRiPpLe_rOoStEr]

Koenigsegg had already stated the production version of the Gemera will be available "optionally" with the V8 currently fitted to the Jesko. Which has camshafts... Not sure if it will be just an extra-cost option, or the only effective way to release a production version of the Gemera at all.

Maybe the only effective way to make a camless engine will be a 2-stroke, to which (considering the gassers) a turbo is unsuitable because of the total-loss oiling...

[Piotrsko]

Why would a turbo be unsuitable on a 2 stroke? Wasn't detroit diesel making a huffed 2 stroke engine for school busses? Think I drove such an animal for a school district and don't recall any oil capacity or useage issues or anything odd except it was bunches faster.

Yup they did

To learn more about some of our engines over the years choose from one of the engine models below. For classic 2-Cycle engines (Series 53, 71, 92 and 149), visit the MTU Detroit Diesel 2-Cycle website.

[cRiPpLe_rOoStEr]

Originally Posted by Piotrsko

Why would a turbo be unsuitable on a 2 stroke?

In a 2-stroke gasser, usually the intake goes through the crankcase, and later being transfered to the cylinders, so the oil is either pre-mixed to the fuel or injected separately, but it's always consumed along the fuel instead of recirculating.

Wasn't detroit diesel making a huffed 2 stroke engine for school busses? Think I drove such an animal for a school district and don't recall any oil capacity or useage issues or anything odd except it was bunches faster.

Diesel 2-strokes are a whole different animal, with a recirculating oil system, and the intake flow always being pressurized by a supercharger, as the air intake ports are on the lower portion of the cylinder sleeves. Some resort to exhaust valves on the cylinder head, while others have exhaust ports right above the intake ports. Not to mention opposite-piston engines with intake ports in one end and exhaust on another.