 WTB any working 2.0 FI Injectors, Will pay top dollar, semi-urgent |
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| mb911 |
 May 12 2018, 01:15 PM
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#21
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914 Guru  Group: Members Posts: 6,801 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest 
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QUOTE(Such914 @ May 12 2018, 08:50 AM)  QUOTE(mb911 @ May 12 2018, 07:01 AM) QUOTE(Such914 @ May 11 2018, 08:30 PM) Rock Auto customer support refunded me, as the order had yet to ship. They did say that they had received other complaints about the product discrepancy. Where in Wisconsin are you? My college is in Minneapolis, but home is in Whitewater WI. My house is about 40 minutes from Rock Auto HQ. I am 35 minutes from whitewater. Near lake Geneva. |
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| McMark |
May 14 2018, 06:13 AM
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#22
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I think these would work (in the 380cc config). The electrical connector is the new type, but I think the original 914 injector will fit -- or you can install new connectors on your harness.
https://www.fiveomotorsport.com/hose-type-e...o-sport-compact |
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| euro911 |
May 14 2018, 11:27 AM
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#23
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Retired & living the dream. God help me if I wake up! Group: Members Posts: 8,845 Joined: 2-December 06 From: So.Cal. & No.AZ (USA) Member No.: 7,300 Region Association: Southern California
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Mark, what would you suggest for injectors for a 1911? ... 315cc ~ 380cc is a big gap (IMG:style_emoticons/default/confused24.gif)
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| McMark |
May 15 2018, 09:50 AM
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#24
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
*** I made a new thread in The Garage since this has broader value and may get missed in the classifieds. Click here to respond to this post. Let's move the HiJack over there. (IMG:style_emoticons/default/wink.gif) ***
That question made me dig in deeper. So I collected the following info for stock injectors. The critical piece when comparing injectors is the testing fuel pressure. I was able to look up the flow-report some other members had posted, which show the after cleaning flow rates. A set of 2.0 injectors flow tested at 42 lb/hr, confirming the 380cc @ 2bar rating that's been passed around. So using that, I built the following table using the typically reported flow rates for the other stock injectors.  The FiveO injectors don't explicitly state their testing pressure, but industry standard is 3-bar. So using the chart above you can find the best fit injectors for stock replacement. BUT YOU MUST CONSIDER WHAT FUEL PRESSURE YOU WANT TO RUN. Considering this thread is about a stock 2.0, you either need 450cc injectors at 28psi, OR 380cc injectors at 43psi. And higher fuel pressure improves atomization, so I'd upgrade to 3bar fuel pressure. and now to get to you actual question, "What injectors to use with a 1911?" you also have to consider the collection of components your using. I'm going to answer this based on the assumption that you're using a complete and correct setup, meaning matching ECU, MPS, etc. (also note: cam choice can make a difference here too because different cams will have different VE results) Okay, so here we go:  So a 1911 is 14% bigger than a stock 1.7. So assuming you had a perfect, complete 1.7 fuel injection system (which implies 'perfect' tuning) that you were installing on a 1911, you would use 380cc injectors to compensate for the increase in displacement. The 1.8 and 2.0 are there as well. My thinking, as I type this, is that the tuning of the stock fuel injection is tied to the ECU, MPS and Injectors (mostly). So which collection of components you're using would change which 'upgraded' injectors you would need for a 1911. |
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| euro911 |
May 15 2018, 02:42 PM
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#25
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Retired & living the dream. God help me if I wake up! Group: Members Posts: 8,845 Joined: 2-December 06 From: So.Cal. & No.AZ (USA) Member No.: 7,300 Region Association: Southern California
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Thanks for doing the homework, Mark (IMG:style_emoticons/default/beerchug.gif)
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