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Date: Sat, 9 Sep 1995 12:52:58 -0700 (PDT)
>From: cogsci.uoregon.edu!levitin (Daniel Levitin)
To: DSand95510(at)aol.com
Cc: tigers(at)spice.sc.intel.com, alpines(at)autox.team.net
Subject: Re: Tach/Speedo Error
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Just a guess here - I'm no expert - but I didn't think that there is a
strict 1:1 relation between engine rpms and vehicle speed. I'm just going
on intuition here, but it seems that if you're going up a steep hill, the
amount of torque needed to overcome the gravity of the hill is going to be
greater than if you are on a flat stretch of road. The greater torque
will require greater engine rpms to achieve the same speed. It would be
easy to try an empirical experiment: find a hill near your house and
start to climb the hill with the car maintaining a constant rpm and see
if the vehicle's speed slows down.
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***** NOTES from Jay Laifman (JLAIFMAN (at) PNM) at 9/9/95 2:48p
I believe you will find that the same rpm gives the same speed, but that
more gas is needed to maintain the same rpm and speed.
Jay Laifman
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