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Discussion in 'Straight 6 Development And Modification' started by Wallace82, Aug 16, 2012.
Ive been told that an inline 6 is generally more fuel efficient than a V6. is this true?
I'd hate to say that the ford online 6 drinks more than the commi v6, but in saying that, I think there is common conception that the online motors produce more torque.
No different in fuel efficiency between the two; they're both simply multiples of a single cylinder.
I've got our V6 VN up to almost 40mpg @ 110km/h with the family and all our crap in it (on NZ roads). It was only doing 31 when I bought it... 4 speed auto. My worked 202 with YT head, XU1 cam, SU's, HEI blah blah blah, and 5 speed might get 23mpg with just me in it. The HJ is lighter than the VN, but the difference in economy is the EFI and the fancy chip and exhaust I've fitted.
Each car is different.. horses for courses.
I have heard quite a few times that an inline 6 is more powerful / efficient than the same capacity V6 but I have never seen or read any supporting proof of this. The purpose of a V6 is to make the engine more compact. Also apparently this "efficiency" is the opposite with an 8. A V8 is better than an inline 8.
I would doubt there would be much in it though if there was any truth or car companies wouldn't bother with the V6.
I reckon you should get MythBusters to test this one out!
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