Camshafts are rubbish. Now not decrease than, compared to the expertise from Koenigsegg’s Freevalve offshoot. The concept that is a relatively straightforward nonetheless ingenious one – by ditching the cams and as an more than just a few electronically-controlling a series of pneumatically actuated valves, mighty more freedom is unfolded.
You’re given a long way bigger maintain watch over of valve clutch, opening them more to expand efficiency or less for higher efficiency. Granted, a camshaft with variable valve timing may maybe maybe maybe additionally accomplish this, nonetheless in a miles more restricted means, with the change dependent most productive on engine trudge. Freevalve, on the opposite hand, can alter the valve profile on the hurry as it sees match, taking into myth more than one parameters collectively with engine temperature, force modes and even how the motive force’s behaving.
Extra mainstream manufacturers salvage performed round with this expertise in the previous, nonetheless with mighty of the car alternate atmosphere sights on electrification and ditching extra inner combustion engine tendencies, most productive Koenigsegg is pushing it. Oh, and a man known as Wesley Kagan.
He’s been busy changing an NA Mazda MX-5/Miata to inch with out camshafts, documenting his work on YouTube. Kagan outmoded the stock cylinder head as a beginning level, adding a mix of bespoke and off-the-shelf points to transform the valves for pneumatic actuation. The redesigned head runs on a programme he wrote himself, and positive (after loads of days of tweaking), it runs and drives successfully.
Kagan admits his coding knowledge isn’t precisely tip-high, so that you just may clutch the plump ability of his setup, he’s pledged to acquire both the code and his CAD work on hand to all.
We are in effort.