Re: Cruising at 100MPH

Subject: Re: Cruising at 100MPH
From: jbaker@thor.tu.hac.com (John Baker)
Date: 21 Sep 1995 17:56:29 GMT
Newsgroups: rec.autos.driving
Organization: Advanced Depot Systems
References: <43o4hv$fso@cnn.Princeton.EDU>

Frank Chang (fzchang@princeton.edu) wrote:
: Is it okay for a car's engine if you cruise at a constant 100MPH for say 
: 3 hours? I'm sure they do this on the autobahn, so my guess is that it 
: is okay. But the engine would be at something like 4800-5000 RPMs the 
: whole time. Any comments?

Depends on the car to some degree.  Some cars are only turning
about 2500 at 100 mph.

My GS-R turns about 5200 rpm at 100, but i cruise over 100
when the opportunity presents itself.  I also drive winding
mountain roads with the engine above 5000 (in various gears)
for hours.  No problem.  After an hour between 6000 and 8000
I know why race drivers wear ear-plugs though !!

JB

References:

Cruising at 100MPH

From: Frank Chang <fzchang@princeton.edu>