cubic inches?

i was talking with some buddies of mine and we were talking about cubic inches, 350s, 400s, 502s, ect. we got to talking about if money was no problem if there was anyplace or anyway to get cubic inch size engine you want 1000 CI, ect. and also get every things else to in the size you need it intake, carb, heads, valves, ect. but then my friend brought up the point that after a point there becomes to much space for the spark plugs and then they don't work but i figure well can't you just add more spark plugs or get bigger ones(i don't know if you can or not) and he was't sure so i figured i would get your guys opinions.

I'm not sure about gasoline engines, but diesels that power
container ships have bores on the order of 6 feet in diameter. The flame front will still propogate out no matter how big the volume, it just takes longer to complete the burn.
But a gigantic engine will be going slow as all hell anyway.

Yeah, you can supplement the fire somehow. Like mentioned above, I'm not sure how it would work on a gas motor but big diesels are huge. He said 6 feet, I've seen pics of diesels in cruise ships that are bigger than your living room. Many of them have exposed rods and you can see how huge they are. I'm six foot and some of them are much bigger than I could reach across. On a gas motor, I would guess that you would just need enough spark. Can you imagine a spark plug as big a motor tranny combo? Coooooooooooooooool

Sonny Leonard has them out to 700 cubes......

I think this has sonny beat for cubes...

108,920 hp @ 102 rpm
5,608,312 lb/ft @ 102 rpm

talk about low end torque...

http://storage.msn.com/x1ptpU1oVkyl4...EgjGjCr-AmERPB

Wow, that sucker is a monster!!! Yup, that's a few cubes up on anything Sonny has built. And I thought my old 460 stroker motor had some huge torque numbers!!!

More displacement is a good thing.:D

thanks for linking the site Denny, all I had was the one photo, and couldn't find the site.

I wonder if they build the boat around that thing, if not, I bet moving it could be quite a chore.

PS To all of you Navy people, I realize it goes in a ship", but to me if it floats it's a boat. :D

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Originally posted by NTFDAY
I wonder if they build the boat around that thing, if not, I bet moving it could be quite a chore.

PS To all of you Navy people, I realize it goes in a ship", but to me if it floats it's a boat. :D

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Well, ya know the old saying "whatever floats your ship"

Wouldn't wanna' be on the steps by the rod journal when they fired 'er up. Might end up like that little "Mousy" in Chevy 37's engine. HEHEHE:LOL: :LOL: :LOL:

I bet that thing would fly on a little shot of juice. But I don't think I wanna be within 300 miles of a nitrous hic-cup.:eek:

Didn't read the whole article, What's red line on that thang'?? 500 rpm ????

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Originally posted by DennyW
:eek: The crankshaft weighs 300 Tons, wow !!

http://www.bath.ac.uk/~ccsshb/12cyl/

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i'm surprised to see insert brgs on somthing that big , what do you suppose the tolerances are on somthing like that.

Gotta' pitty the engineers that spend that kinda' money ................ then not have it work....... can you say ..........."Yer' Fired".......:CRY:

I guess it beats a galley full o' slaves rowin' by hand. :whacked:

As I remember from the hazy past, a reference book said that the bore limit on a gasoline engine was considered to be 4.0 inches. Once that was exceeded, the flame front would begin to weaken. Many early engines exceeded that and that's where the guide originated. I can't remember if it was also cited in a Smokey Yunick (genuflect here)book or not - he did tons of experimental engine work. Anyway. it's not that you CAN'T, it's simply a case of diminishing returns. I wonder if things like electronic fuel injection stretch that limit now, because that 4" figure assumed use of a carb.

I'm sure that ignition technology, among other things have come a long way since then also. My bore is only .010 from being 5" and it sure ain't short on power.

MAN,, A THOUSAND CU. IN. .. NOW YOUR
THINKING LIKE "JAY LENO"....
CAN'T SAY I WOULD MIND OWNING A
NEW 572....

In street dress, the limit of a gasoline motor is -about- 1 liter (66 cubes) per cylinder. Once you start getting into race setups and super high compression with ideal combustion chambers you can pull off more.

Justin

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Originally posted by Hoxviii
In street dress, the limit of a gasoline motor is -about- 1 liter (66 cubes) per cylinder. Once you start getting into race setups and super high compression with ideal combustion chambers you can pull off more.

Justin

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Don't forget Gm's 572.:)

572? hmmmmmmmmmmm........ how about the 396,427,and 454 small blocks:LOL:

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Originally posted by gassersrule_196
572? hmmmmmmmmmmm........ how about the 396,427,and 454 small blocks:LOL:

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$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

well then ill build a 301 for just $$ isntead of $$$$$$$$$$$$$$$$$$$$:LOL: :LOL: