CI or CC ???

Message

TMcMahon51 · Tue May 17, 2005 1:38 pm

All the posts that I'm reading, people are talking about their bikes in CC's, but what about bikes where the engine size is measured in CI's? I'm not very good with metric measurement, nor do I really plan on it, since most things in the states aren't measured metricaly. Is there any way to tell how many CI's, say, a 600 CC engine is, just so I'm squared up? I'm not really into sportbikes, I just want to know what the conversion would be, so I could actually understand what half of this stuff is.

PS: I'm more into Harleys and related bikes made in the US, which are usually measured in CI's

#2 Unread post by **Sev** » Tue May 17, 2005 1:46 pm

A quick google search turned This up. Hope it helps.

Gadjet · #3 Unread post by **Gadjet** » Tue May 17, 2005 3:58 pm

divide the displacement in CC by 14.78 to get ci.

rapidblue · #4 Unread post by **rapidblue** » Tue May 17, 2005 4:19 pm

WhyteGryphon wrote:divide the displacement in CC by 14.78 to get ci.

not to be picky but its actually divide by 16.387

(1in = 2.54cm and 1in^3 = 2.54cmx2.54cmx2.54cm is 16.387cm^3)

Gadjet · #5 Unread post by **Gadjet** » Tue May 17, 2005 4:56 pm

rapidblue wrote:
WhyteGryphon wrote:divide the displacement in CC by 14.78 to get ci.
not to be picky but its actually divide by 16.387

(1in = 2.54cm and 1in^3 = 2.54cmx2.54cmx2.54cm is 16.387cm^3)

2.454 if you want to get picky.

2.454^3=14.78

allawybiker · Tue May 17, 2005 6:12 pm

rapidblue is correct...

1 cubic centimeter = 0.06102374 cubic inch
1 / 0.06102374 = 1 cubic inch
16.3871 cc = 1 ci

example: 50ci engine is the same as 819.355cc (50 * 16.3871)
and a 600cc engine is 36.62ci (600 / 16.3871)

ciao

Magnum · #7 Unread post by **Magnum** » Tue May 17, 2005 7:26 pm

LOL, this thread is giving me a good laugh. I can just see it, outside a tough no-mans land biker bar, with tough guys in black leather and bandana's, a fight is about to break out. A math fight, with alex trabec refereeing. LOL. To the exponent... be-yatch. Fractal this back at ya! LOL.

And if you want more math fun, a liter is 61 ci. I learned that from my 5.0, which is 305 ci, which is how many cc's? LOL.

Telesque · #8 Unread post by **Telesque** » Tue May 17, 2005 9:05 pm

Actually, if you'd like to skip all that smarty math stuff, you can just use the uber-simple Google math functions.

Simply go to google.com, and in the search box, type '600 cubic centimeters in cubic inches' and what happens? Well, it tells you the value of 600cc's in ci's.

Always good to know how to do it yourself though, I suppose (Or at least that's what my Prof insists on

). Really though, SI (commonly/colloquially referred to as 'Metric') is the better system anyways.

Gadjet · #9 Unread post by **Gadjet** » Wed May 18, 2005 2:11 am

there's also this site Online Conversion

They also have conversions for pretty much everything else under the sun.

and I stand corrected; allawybiker and rapidblue are correct on the conversion value.

linear measurement is 2.454cm to the inch

#10 Unread post by **Sev** » Wed May 18, 2005 3:08 am

Did no one see the link I posted?