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- Newsgroups: rec.autos.tech
- Path: sparky!uunet!stanford.edu!kronos.arc.nasa.gov!iscnvx!sharen
- From: sharen@iscnvx.lmsc.lockheed.com (Sharen A. Rund)
- Subject: Re: when to shift?
- Message-ID: <1992Oct16.214231.24437@iscnvx.lmsc.lockheed.com>
- Organization: Lockheed Missiles and Space Co.
- References: <92290.111021QXF1@psuvm.psu.edu> <1bn58fINNsv7@bigboote.WPI.EDU>
- Date: Fri, 16 Oct 92 21:42:31 GMT
- Lines: 31
-
- In article <1bn58fINNsv7@bigboote.WPI.EDU> damong@wpi.WPI.EDU (Damon Francis Gentile) writes:
- >In article <92290.111021QXF1@psuvm.psu.edu> <QXF1@psuvm.psu.edu> writes:
- >>Hey everyone, I've always been told that shift up early will help to get better
- >>gas milage. Some say shift at 2000 rpm, an article in a magazine even said
- >>at 1500 rpm. I believe shift up earlier will give better gas economy. The
- >>question is, does this have any negative effect to the engine other than lesser
- >>performance? Carbon deposition, for example, is one thing that jumps into my
- >>mind.
- >>
- >>Ching
- >
- > you can upshift all you want, but by upshifting so soon you miss
- >out on the peak torque range for the engine. you also put a _lot_ of
- >strain on the main bearings when you lug the engine, and they are not
- >very fun to replace.
- >
- >Damon
-
- besides, if you listen to your car/engine it will tell you when to shift,
- but you have to learn to listen for it and hear it and I'm afraid its
- hard to explain what you're listening for, but if you shift too soon,
- you'll also hear that, the car will kind of lug...
-
- --
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-
-