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Path: utzoo!watmath!clyde!burl!we13!ihnp4!ihuxl!seifert
From: seifert@ihuxl.UUCP (D.A. Seifert)
Newsgroups: net.auto
Subject: Re: info on '85 + '86 Vette - (nf)
Message-ID: <1069@ihuxl.UUCP>
Date: Mon, 30-Apr-84 20:28:29 EDT
Article-I.D.: ihuxl.1069
Posted: Mon Apr 30 20:28:29 1984
Date-Received: Tue, 1-May-84 19:04:45 EDT
References: <1045@gummo.UUCP>
Organization: AT&T Bell Labs, Naperville, IL
Lines: 28

> a little more info on the '85 Vette! the fuel injection system 
> that will be used is called a port injection type. fuel is
> injected directly into the cylinders which eliminates any
> power that would be lost in the intake manifold (plenum). in
> '86 rumor has it that the vette will be running a dual port
> injected engine (mucho hp).

Directly into the cylinders?  Would be nice, but not trivial
to do.  The injectors would have to handle temperatures of
over 1000 degrees F, and pressures in the 150 psi range.
And not fail due to deposits. You also need a fuel pump that
does well over 150 psi.

"Normal" port fuel injection injects not into the cylinders,
but just ahead of the cylinders.  The injector sprays towards
the back of the intake valve.  Life is a lot easier for the
injectors, and the fuel pump needs to put out 'only' 50-80 psi.

"dual port injected" ??? what's that?

"Carburetors? Ve don't need no steeenking carburetors!"
(Even if you stick a nozzle in it and call it "throttle body FI")
-- 
	_____
       /_____\	   	    That auto-crossing beagle,
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	|___|		    BMWCCA, Windy City Chapter
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