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clarification? (archive)

[ Follow Ups ] [ 3-series (E46) Message Board ] [ Msg. Board FAQ ]

Posted by Rob Levinson on November 26, 1999 at 02:21:46:

In Reply to: v-v-v-i-i-i-b-b-b-r-r-r-a-a-a-t-t-t-i-i-i-o-o-o-n posted by lk on November 26, 1999 at 01:30:48:

I think a little clarification on what you meant is in order. What exactly do you think vibrates, the I6 or V6?

No matter what you say, you're at least 50% wrong...

An inline-6 engine is inherently balanced and does not have any second-order vibration characteristics. Its smooth nature is why BMW keeps using it and, until recently, it was the "engine of choice" in Jags and Mercedes Benzes.

A V6 can also be inherently balanced... "can" if it is a 60-degree V design. The problem with many Amurrican V6s is that the motor is a 90-degree V8 with two cylinders chopped off. A 90-degree V6 will vibrate, a 60-degree will not.

- Rob Levinson

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