Thread: cubic inches?

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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...

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.

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.

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.

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

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.

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

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

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

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".......

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