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- From: welty@cabot.balltown.cma.COM (richard welty)
- Newsgroups: rec.autos.tech
- Subject: Re: What is the air pump used for?
- Message-ID: <1992Oct12.212556.8145@cabot.balltown.cma.COM>
- Date: 12 Oct 92 21:25:56 GMT
- References: <799.88.uupcb@chaos.lrk.ar.us>
- Organization: New York State Institute for Sebastian Cabot Studies
- Lines: 21
-
- In article <799.88.uupcb@chaos.lrk.ar.us> dave.williams@chaos.lrk.ar.us (Dave Williams) writes:
- >> It still puzzles me why cars cannot run a little bit lean.
-
- > There's no problem with running a little bit lean. The problem is
- >determining exactly how lean you are, and not letting it slide into too
- >lean. It can be done, but it takes a little more work than conventional
- >stuff.
-
- quite. too lean can have extremely unpleasant side effects, like
- burned valves and holes in pistons; lean mixtures tend to run hotter.
- most modern motors in the US are set about as lean as they can reasonably
- run to begin with for emissions reasons; the new learn burn motors that
- you hear of generally involve significant changes in injector and
- valve design.
-
- richard
- --
- richard welty 518-393-7228
- welty@cabot.balltown.cma.com
- ``if you can read this, mario, you're too close''
- -- bumper sticker seen on a CART safety truck
-