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Subject:Re: Safe RPM's
From:Bill Davidson
Date:Sat, 14 Oct 2000 21:17:42 -0700

> I have a question as to what my RPM's should be at speed.  I saw a post
> earlier where someone said they did 65 mph at 3400 rpm.  I have an 89GL
> automatic, with alloy wheels, Michelin All Season RainForce 205-70/14
tires
> (came with the vehicle.)  The engine is turning approximately 3600 rpms at
60
> mph, approximately 4K at 70 mph.  This puts it on the upper limit of the
> "green" on the tach.  Is this normal for an automatic?

That's pretty much what my 90 Westy Syncro runs.... but these reports are
not easy to compare... like was there a tail wind? head wind? perfectly
level?....

I usually drive
> between 65 and 75 and get 17-18 miles per gal.  I'd like to drop the rpms
> (longer engine life), but hate paying $$$ for larger rims, etc.

Larger rims with larger diameter tires will cause the engine to work harder
in the lower gears... and have slower acceleration... it's already a dog on
acceleration IMHO, why make it worse?

> TIA for any responses.
> Ken Hartz
>

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