does what this guy is going on about make any sense to anyone on the forum??
clicky

I read the first coupla bits and he is just repeating general knowledge really... and sounding like a dick about it... and im not reading all that!

He is basically saying take a V8 run it on four cylinders and use the other four as air pumps to supercharge the ones that are firing.

I dont know if it would work but it makes sense to me.

I think someone posted a hand drawn pic of a similiar idea some time ago, was it you D?

quote;
When that engine started out as a V-8, all eight cylinders would fire, and they would all use up fuel. After it has been modified in this way, it essentially can use half the fuel, because only four cylinders are actually burning up fuel. But the available much greater fuel-air charge in each cylinder, and the very uniform distribution of the fuel, ensures FAR more power from each stroke, and the total engine output can be much more than 1.5 times that it had as a V-8. In general terms, this means the functional fuel efficiency is virtually double what it was before."

I flicked to the bottom to see if he would summarise it and found this quote. if you were putting 3 times the amount of fuel into the remaing 4 cylinders wouldn't you use 1.5 times the amount of fuel?

edit: at least it's better than DEI (direct exhaust injection)

i remember my dad telling me a story about back in his hay day in NZ they used to do that to a V8 but to make a air compresser insted. Like to pump up tyres or whatever.

haha DEI i remember reading that on some corvette site?? and a link was posted on here to it?

basicly you would have a 4 cyl motor the size of a v8 and the same fuel consumption. you would also have more friction then using a conventional 4 cyl so wouldnt it be far better to just supercharge a 4 cyl motor so then you are puting 3 time the amount of fuel it would normaly use?

yeh i think it's like having a supercharged four but twice the weight. theoretically it would work though.

not just twice the weight twice the everthing not worth it by far. i wonder how well it would work??? anyone got a spare v8 and time to waste for the scientific purposes of finding out if this works and how well?

It may work, but why??
Turbos and superchargers do pretty much exactly what was described. Same problems also, apart from having to drag a large tank of compressed air around.
Sounds like someone is doing an engineering course or something and smoked too much green.
Id reckon the author has probably never actually built a motor, or even changed their own oil.
Imagine the drag created by 4 dead cylinders or cylinders compressing air without a burn cycle.

shouldnt the drag be the same, as cylinders are only working half the time anyway!

Yes it was D who talked about it maybe six months ago. He posted a series of links about it, which went deeply into the benefits. He also talked about trying it with an a series i think.