Date: Wed, 16 Feb 2005 08:37:58 PST
From: mojavegnospamveg.iwvisp.com (Everett M. Greene)
Subject: Re: new saab motor for 9-3 series



Dave Hinz <DaveHinznospamcop.net> writes:

> And the dual balance-shaft design of the I4 is very
> vibration free.

So that's how they do it.

I read somewhere many, many years ago that a 6-cylinder
engine (in what configuration, I don't recall) is
inherently balanced whereas a 4-cylinder engine is one
of the worst, if not the worst, in trying to get it to
run smoothly.  My experience over the years has found
this to be at least approximately true in that, other
than the Saab, the 4s have been rather rough running
while the old Corvair and the 6-cylinder Porsches
run quite smoothly.

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