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Old 02-05-2005, 08:58 PM
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Power comparison: Inlines vs. V-Orientation

It seems to me from what I observe in OEM vehicles and performance buildups that inline engines always seem to get better performance and mileage per displacement than their v-oriented counterparts with all other variables being equal. Is there some reason for this or is it just an urban myth? I'd like to call attention to the whopping performance a Supra inline-6 is capable of.

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Old 02-06-2005, 02:10 AM
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myth. The only thing you're referencing is a rotating assembly and block that just happen to be able to take some punishing, and rightly so, considering the technology is 50 years ahead of what most of us are using for blocks and rotating assemblys, and only about 200 horse ahead...

K
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Old 02-06-2005, 08:51 AM
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Look at what F1 engine designers use. If there was an advantage to using an inline configuration they would be doing it. I know it's a pretty blind statement, but it is the truth.

I prefer inline engines in anything that I want to run smooth, and last. It could be the fact that they are usually overbuilt compared to the intended use that helped them live so much longer, like the old days.

Larry
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Old 02-06-2005, 03:34 PM
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Inline vs V configuration

It would be a myth that an inline would produce superior power and get better gas mileage than a V configuration.
There are two factors here, one being that the V configuration will generally have a lot lighter rotating mass, which will inherently allow less pericitic load losses, and if you the engines are running a single source of fuel air mixture, IE one carburetor, the inline runs into distribution problems that wont be inherent in the V design.
I dont say this as an absolute, but in general engine design and the fuel air flow dynamics would indicate this.
Other advantages to the V style is lighter engines weights as well as a more compact package.
There are exceptions to every rule on weight etc, for instance the old GMC, 305 series V-6 used in pickup trucks during the 60's. One heavy boat anchor.
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