Dan seems to be talking about cars, the writer about motorcycles. In a motor cycle "just 8000 rpm" might be a likely output but in a car it would be a screamer. On the other had an 1800 cc, 262 hp engine would seem quite lovely in an automobile but a 1800 cc, 262 hp bike a bit of an overkill regardless of how smooth running the motor might be.

Yeah, despite some of the crazy hp bikes coming out lately. The engine is interesting though, the port design power improvements are impressive. The gearbox possibilities with the engines intrinsic 2 output shafts get interesting as well.

the idea of duel crankshafts is not new, it was done in the 1940's I remember reading about a car built with 2 4cylinder engines mounted horizontally opposed to form a flat 8 due to the design, it was used in a hill climb vehicle I believe there was a square 4 built by a motor cycle company

'The fact is that there are global and US oil and gas fields available which should last for many, many decades' Indeed, but I would suggest it should be used for more important purposes than powering transportation....

> "I’m not anti-electric automobiles," says 84 year-old Gurney. "The fact is that there are global and US oil and gas fields available which should last for many, many decades
… provided we totally ignore minor issues such as EROI or CAPEX. Peak oil is already here: The very fact that we had to move to non-conventional oil starting in the 70's is a symptom.
Actually, there will still be oil in the ground in thousands of years. We'll just have given up on oil a long time before that.

Geared crank connections are sloppy and inefficient, Phil Erving's 76° parallel twin offset crank are relatively expensive to make, compared to a 180°, but are compact and effective.

I hope he succeeds. Thing is, an electric motor is so much less complicated in comparison. Maybe this would lend itself to a gas/electric hybrid bike.

I hope the day will come soon, when the last fool will recognise that it's time to abandon the combustion engine completely.

OK, I really like the idea of venturi technology being used to make combustion more efficient. That could work with other engine designs as well, one presumes. Its a hell of a lot better than the complicated and slow to spool-up turbo-charger and, I would guess, less expensive than the super-charger. 260 peak HP is a nice step up from todays 190hp bikes cause there is nothing worse than pretending you have 190HP on tap only to find out that 140-150 was the usable limit. If the design is sufficiently compact, it could be shoehorned into a sport bike...right?

Another article, another group of naysayers.
Good for you Mr. Gurney. Thing is, these people commenting do not even know who you are, and what you have done. People on the internet are in greatest majority going to post a negative comment, it is how people work. Good thing people pay no attention to all of the complainers and move projects forward all the same!