[DeTomaso] NPC Anyone know much about the GM direct injection300 HP V6
Larry - Ohio Time Corp
larry at ohiotimecorp.com
Wed Dec 17 14:09:21 EST 2008
Ken,
After reading the wiki it is saying that the injector shot is going in
during the intake stroke, unlike a diesel that happens on the compression
stroke, so why do you need a fancy high pressure pump?
Larry - Cleveland
-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Ken Green
Sent: Wednesday, December 17, 2008 1:23 PM
To: detomaso at realbig.com; JDeRyke at aol.com
Subject: Re: [DeTomaso] NPC Anyone know much about the GM direct
injection300 HP V6
Here is some more on direct injection, it sounds pretty interesting:
http://en.wikipedia.org/wiki/Gasoline_direct_injection
With all the companies casting after market heads, and making after marker
ECUs, this could be an option in the future.
Ken
--- On Tue, 12/16/08, JDeRyke at aol.com <JDeRyke at aol.com> wrote:
From: JDeRyke at aol.com <JDeRyke at aol.com>
Subject: Re: [DeTomaso] NPC Anyone know much about the GM direct injection
300 HP V6
To: kenn_green at yahoo.com, detomaso at realbig.com
Date: Tuesday, December 16, 2008, 9:42 PM
In a message dated 12/16/08 3:11:40 PM, kenn_green at yahoo.com writes:
> I was told that this engine is cleaner and makes more HP than non-direct
> injection motors. So is this another major step in engine evolution, big
or
> small?
>
Maybe. It works like a diesel in that fuel is sprayed directly into the
chamber at around 1200-1600 psi and only air goes thru the intake & past
the
valves. The only real 'breakthru' is sealing a high pressure gasoline
pump that can
be mass-produced. This was the stumbling block for decades- the mid-'50s
Mercedes gullwings had direct injection fuel pumps with internal clearances
measured in angstroms.... In any case, D.I. engines are un-modifiable by you
& I, so
personally, I'm not interested in yet another hands-off black-box.
Expecting
the Gov't to seal all street engines any day now. Sigh- J Deryke
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