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ci on a 3.1??

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Old 02-17-2008, 10:55 AM
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ci on a 3.1??

ok i have a quick question. How come everywhere i look i see that the 3.1L engine is either a 192ci, 189ci or like 175ci or something? My chiltons book says 192ci but on the history/rest forum it says that the 92' camaro RS had like a 175ci or something like that. I dont understand why theres huge diff. in all the places ive looked. so if someone could tell me the real CI on my 3.1L that would be a great help. Thanks
Old 02-17-2008, 11:07 AM
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Re: ci on a 3.1??

Originally Posted by ossseo28
ok i have a quick question. How come everywhere i look i see that the 3.1L engine is either a 192ci, 189ci or like 175ci or something? My chiltons book says 192ci but on the history/rest forum it says that the 92' camaro RS had like a 175ci or something like that. I dont understand why theres huge diff. in all the places ive looked. so if someone could tell me the real CI on my 3.1L that would be a great help. Thanks
its 191 ci according to 1992 GM Camaro Service manual
Old 02-17-2008, 11:27 AM
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Re: ci on a 3.1??

175, or more correctly 173 is 2.8L.

It seems to change slightly by year, probably has to do with the engineer doing the calculations and if they rounded up or rounded down. I generally think of the 3.1 as a 192.
Old 02-17-2008, 11:36 AM
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Re: ci on a 3.1??

ok thanks guys
Old 02-17-2008, 12:52 PM
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Re: ci on a 3.1??

Most accurate way is to calculate the volume of the cyls yourself using the stroke and bore.

GM says that the 3.4/3400 is 207ci, but it's actually 204. I think someone at GM must have rounded the liters up to 3.4, then converted it back to in.
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