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Keaton
Joined: 02 Jan 2006
Posts: 261
Location: 85202
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 Posted: Fri Apr 21, 2006 5:13 pm Post subject: gasoline direction injection |
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gasoline direct(oops) injection what do you guys know. i've googled it and fount some information it. what do you guys know?
oops thats what i ment
Last edited by Keaton on Fri Apr 21, 2006 5:23 pm; edited 1 time in total |
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Khal
Joined: 26 Sep 2003
Posts: 4872
Location: Sunny and lovely interior BC, Canada
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| Posted: Fri Apr 21, 2006 5:15 pm Post subject: Re: gasoline direction injection |
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| Keaton wrote: | | what do you guys know? |
I know mine doesn't have it.
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Mike924
Joined: 12 Aug 2004
Posts: 2601
Location: IoW UK
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| Posted: Fri Apr 21, 2006 5:20 pm Post subject: |
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Do you mean direct injection?
Direct injection squirts the fuel directly (hence the name) into the cylinder (i.e. after the inlet valve) as opposed to into the inlet manifold like normal (i.e. before the inlet valve).
The biggest difference is that direct injection needs to overcome the compression of the cylinder as opposed to the vacuum of the inlet manifold.
Most (all?) diesels are direct injection, very few petrol (gas) engines are (I can only think of one, the Mitsubishi GDi).
What's on your mind, Keaton?
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Keaton
Joined: 02 Jan 2006
Posts: 261
Location: 85202
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| Posted: Fri Apr 21, 2006 5:26 pm Post subject: |
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| yeah i know that all diesels have it. i know that they are starting to put it in Gasoline cars. pros? cons? |
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moone924
Joined: 05 Feb 2003
Posts: 868
Location: Douglas Wyoming
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| Posted: Fri Apr 21, 2006 5:42 pm Post subject: |
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That new 2.0 turbo audi engine is direct injection.
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Ryan Moone
Always shopping for a nice s2 931 to baby.
New philosophy : one car project at a time. |
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Khal
Joined: 26 Sep 2003
Posts: 4872
Location: Sunny and lovely interior BC, Canada
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| Posted: Fri Apr 21, 2006 6:26 pm Post subject: |
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Better than any other method.
924 doesn't have it.
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Mike924
Joined: 12 Aug 2004
Posts: 2601
Location: IoW UK
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| Posted: Fri Apr 21, 2006 6:29 pm Post subject: |
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| Khal wrote: |
Better than any other method. |
Really?
Seems to me that it's a complicated method of replacing something that works fine already.
_________________
1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd
'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org
Last edited by Mike924 on Fri Apr 21, 2006 6:30 pm; edited 1 time in total |
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Khal
Joined: 26 Sep 2003
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Location: Sunny and lovely interior BC, Canada
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| Posted: Fri Apr 21, 2006 6:30 pm Post subject: |
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| Mike924 wrote: | | Seems to me that its a complicated method of replacing something that works fine already. |
What isn't? Still goes better.
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Fri Apr 21, 2006 11:12 pm Post subject: |
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| Mike924 wrote: | | Khal wrote: |
Better than any other method. |
Really?
Seems to me that it's a complicated method of replacing something that works fine already. |
Kinda like marriage, eh? 
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Khal
Joined: 26 Sep 2003
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Location: Sunny and lovely interior BC, Canada
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| Posted: Sat Apr 22, 2006 4:36 am Post subject: |
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| Paul wrote: | | Kinda like marriage, eh? |
Wouldn't know... hope to find out...
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924RACR
Joined: 29 Jul 2001
Posts: 9071
Location: Royal Oak, MI, USA
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| Posted: Sat Apr 22, 2006 11:07 pm Post subject: |
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It's much more efficient - step up in power and economy. Same complaints could be said of going from carbs to fuel injection.
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
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Mike924
Joined: 12 Aug 2004
Posts: 2601
Location: IoW UK
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| Posted: Mon Apr 24, 2006 5:29 pm Post subject: |
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| 924RACR wrote: | | Same complaints could be said of going from carbs to fuel injection. |
True. When BMW brought out the 2002 Tii, with its Kugelfischer mechanical injection (similar to the Bosch CIS), pundits thought they were mad for not sticking to tried-and-tested Weber DCOEs.
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1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd
'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org |
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