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is there an i8 engine? 

 

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 Post subject: is there an i8 engine?
Posted: Sat Feb 04, 2006 5:12 am 
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has there ever been inline 8 engines?

whats wrong with them?

why go for the V8 not i8?


falcons have the i6, why not goto i8?

 

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Posted: Sat Feb 04, 2006 6:41 am 
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ther have been a few inline 8's over the years, buick had one, forgot who else

basically it all comes down to packaging, a I8 is even longer than an i6, but a v8 is 2/3rds the length, but can still be made to fit into most engine bays

 

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Posted: Sat Feb 04, 2006 9:22 am 
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very old rolls royces had I8 motors, they are f**k huge!

 

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Posted: Sat Feb 04, 2006 1:56 pm 
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Oldsmobile used to have a straight 8 as well. But then you start having to go into things like two 4 cylinder heads to try and stop distortion etc. Theyre just too big. Fairly sure in thinking Ford never used a straight 8. Now theyre going for even more compact engines, one of the laatest being the W8.

 

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Posted: Sat Feb 04, 2006 2:07 pm 
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Posted: Sat Feb 04, 2006 2:22 pm 
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what are thery like compared to V8's?

not size wise, proformance wise

 

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Posted: Sat Feb 04, 2006 3:56 pm 
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i doubt anyone could answer that question accurately given the time/technology gap between them

 

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Posted: Sat Feb 04, 2006 4:26 pm 
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Theyre a very smooth motor apparently, and one would think thed make as much power as an 8! * cylinders, still only makes 8 cylinders of power!

 

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Posted: Sat Feb 04, 2006 4:52 pm 
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yeh but like the differnece between v6 and i6
theres a difference there

 

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Posted: Sat Feb 04, 2006 4:59 pm 
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they were basicly too long. the buick ones i know for sure had problems braking cranks when thye were worked

 

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Posted: Sat Feb 04, 2006 5:21 pm 
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Sure are, but they are bloody long!
Went to my grade 10 formal in a buick with an inline eight and the thing was long long long!
The V8's are easier to fit in and that, hence there popularity.

Think the heads on our I6's are too long? These are a joke!

 

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Posted: Sat Feb 04, 2006 5:27 pm 
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v configured engines are both shorter in height and shorter in length but wider, it makes them easier to fit into cars with sleek bonnet lines without having alot of overhang on the front. I dont think there have been any tests where they got two 6 cylinder engines and made one a V type engine and one an inline, and kept the displacment, bore, stroke, camshaft profiles, engine management, valve angles, valve size, induction tube length and shape ect. all identical so you cannot directly compare power of v and i type engines fairly
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Posted: Sat Feb 04, 2006 7:11 pm 
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imagine the one sided roll when reving one of the i8's at stand still... unless they had 4 cyls 180 degrees from the other 4
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Posted: Sat Feb 04, 2006 7:45 pm 
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nitroxr wrote:
imagine the one sided roll when reving one of the i8's at stand still... unless they had 4 cyls 180 degrees from the other 4


That's then be a H8 (or boxer).

 

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Posted: Sat Feb 04, 2006 10:22 pm 
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I have seen an oldsmobile str8 8 in action. The thing had one carb and when u gave it a bit of poke, litterally a cupfull of fuel would spew out. The main prob I could see was the first few cyls got too much mixture the next few were nice and the last ran lean. But saying that, it was the smoothest sounding engine ive ever heard, very sweet indeed. The thing was huge, really long.

I cant see the str8 8 being anywhere near as efficient as the V8 set up, with twin carbs it might come close but with the added length of the cam and crank and keeping everything balanced, in time and in tune you would still be behind. There must be other reasons awell, otherwise you would still see them about today. As for the sound though, theres nothing like it, not anything like a lumpy V8 but just as cool in its own way.

 

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