Date: Sat, 31 Mar 2001 19:46:09 -0700
From: Rick Grant <rgrant@cadvision.com>
Subject: Re: LRO: Red lines
>As such I tend to play conservative and stay well away from the ultimate
limits. If 4,250 is the max, never exceed, point for my 2.25 then is it
reasonable to consider 4,000 rpm as the maximum practical day to day
limit? Or is that too conservative?
Start your Land Rover, put it in neutral, depress the clutch, and run the
engine on up to 4,000 rpm and listen to it for a minute. You're only
250 rpm away from the red line, maximum non-destruct speed, whatever
you want to call it. As you listen to it, visualize what's going on inside
what is essentially a tractor engine. Now, if you want to drive around
all day with the engine doing that, fine. But you will severely shorten
the life of your engine if you do. The maximum continuous rpm I have
always used is 3,000. Given the fact that other than a couple of burned
exhaust valves my engine has performed flawlessly for 28 years, I'd say
I'm on the right track with my rpm limit. No matter how hard you try, you
will not get a stock Series to keep up with today's highway traffic without
eventually destroying the engine. So unless you like working on stuff
prematurely, get used to driving in the slow lane. It's a hell of a lot cheaper
in the long run, and you get to spend your weekends doing something interesting
instead of lying on your back under your vehicle fixing yet another broken
something.
_________________________________________
C. Marin Faure
Producer/Director, Boeing Video Services
telephone (425)393-7721
mobile (206)650-5622
fax: (425)393-7741
e-mail: marin.faure@boeing.com
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