 Anyone have experience with these aftermarket injectors? |
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| Halfnelson |
 Sep 2 2021, 11:18 AM
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#1
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Newbie  Group: Members Posts: 46 Joined: 31-July 17 From: Cornwall Member No.: 21,303 Region Association: England  |
Anyone have experience with these injectors? I have them fitted to my recently acquired 73 1.7 with standard Djet.
My car is currently running very rich / flooding and the injectors are heading to a local specialist for testing as we suspect one of them is sticking. The alternative is they are the wrong spec for the car. Anyone else run them? https://www.fiveomotorsport.com/hose-type-e...ro-asian-sport/ They are the 380cc type. Thanks, Chris  |
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| emerygt350 |
Sep 2 2021, 11:57 AM
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#2
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Advanced Member Group: Members Posts: 2,096 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Nice you figured out what they are. That is almost 100cc too much for a 1.7.
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| 914sgofast2 |
Sep 2 2021, 07:08 PM
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#3
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Senior Member Group: Members Posts: 617 Joined: 10-May 13 From: El Dorado Hills, CA Member No.: 15,855 Region Association: None |
I believe that green top injectors are for the 1.8liter engines. The yellow top ones are for the 1.7 liter engines.
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| Quinn Moore |
Sep 2 2021, 07:31 PM
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#4
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Qmoore Group: Members Posts: 107 Joined: 13-July 21 From: Fox River Grove, IL Member No.: 25,718 Region Association: Upper MidWest 
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QUOTE(Halfnelson @ Sep 2 2021, 12:18 PM)  Anyone have experience with these injectors? I have them fitted to my recently acquired 73 1.7 with standard Djet. My car is currently running very rich / flooding and the injectors are heading to a local specialist for testing as we suspect one of them is sticking. The alternative is they are the wrong spec for the car. Anyone else run them? https://www.fiveomotorsport.com/hose-type-e...ro-asian-sport/ They are the 380cc type. Thanks, Chris Green 2.0, yellow 1.7? Replacement , I put these in my 2.0 while the Bosch we're sent out for service. Fj67 worked well. No issues. Add the seal kit. Maybe check the FJ114? 2.0 standard FJ67 https://www.rockauto.com/en/parts/standard+...l+injector,6224 1.7 standard ( FJ114. 1.7) https://www.rockauto.com/en/catalog/porsche...l+injector,6224 |
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| 914sgofast2 |
Sep 2 2021, 08:29 PM
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#5
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Senior Member Group: Members Posts: 617 Joined: 10-May 13 From: El Dorado Hills, CA Member No.: 15,855 Region Association: None |
I have been using those Rock Auto sourced FJ114 fuel injectors on my 1.7 Liter for several years and am very happy with them.
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| Halfnelson |
Sep 3 2021, 07:27 AM
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#6
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Newbie Group: Members Posts: 46 Joined: 31-July 17 From: Cornwall Member No.: 21,303 Region Association: England |
QUOTE(emerygt350 @ Sep 2 2021, 06:57 PM) Nice you figured out what they are. That is almost 100cc too much for a 1.7. OK, that would account for our inability to trace the rich running / flooding. I did see in correspondence from the PO that the supplier claimed they were compatible with a 914 1.7 Djet. I was hoping maybe that one or more of the injectors were either sticky or leaky but I guess what you're suggesting is they're not compatible at all. |
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| Dave_Darling |
Sep 3 2021, 01:23 PM
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#7
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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No, they are compatible--they spray a metered amount of fuel just fine.
It's just that it's the wrong amount for a 1.7 engine. They can probably be made to inject the right amount for a 1.7, but it will require work to the rest of the FI. It's a fine difference between "compatible" and "correct", but it's there. Especially if you are selling the parts. --DD |
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| Halfnelson |
Sep 4 2021, 04:16 AM
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#8
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Newbie Group: Members Posts: 46 Joined: 31-July 17 From: Cornwall Member No.: 21,303 Region Association: England |
QUOTE(Dave_Darling @ Sep 3 2021, 08:23 PM) No, they are compatible--they spray a metered amount of fuel just fine. It's just that it's the wrong amount for a 1.7 engine. They can probably be made to inject the right amount for a 1.7, but it will require work to the rest of the FI. It's a fine difference between "compatible" and "correct", but it's there. Especially if you are selling the parts. --DD Thanks Dave - would this be a complex way of doing things or would it be simple ie tweaking fuel pressure? I would need to order replacement injectors from the US so that would take a while so if tweaking is relatively straightforward that would be an option for sure. What is the correct metered about a 1.7 injector should deliver? |
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| sholman5 |
Sep 4 2021, 07:59 AM
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#9
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Kraut burner Group: Members Posts: 189 Joined: 11-September 16 From: Ormond beach, Fl. Member No.: 20,391 Region Association: South East States
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QUOTE(Halfnelson @ Sep 4 2021, 06:16 AM) QUOTE(Dave_Darling @ Sep 3 2021, 08:23 PM) No, they are compatible--they spray a metered amount of fuel just fine. It's just that it's the wrong amount for a 1.7 engine. They can probably be made to inject the right amount for a 1.7, but it will require work to the rest of the FI. It's a fine difference between "compatible" and "correct", but it's there. Especially if you are selling the parts. --DD Thanks Dave - would this be a complex way of doing things or would it be simple ie tweaking fuel pressure? I would need to order replacement injectors from the US so that would take a while so if tweaking is relatively straightforward that would be an option for sure. What is the correct metered about a 1.7 injector should deliver?  |
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| Robarabian |
Sep 5 2021, 05:51 PM
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#10
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914 A Roo Group: Members Posts: 592 Joined: 11-February 19 From: Simi Valley, Kalifornia Member No.: 22,865 Region Association: Southern California
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Dave,
I am pumping up my 1.7 to a 1911 in my rebuild. Would the 2.0 injector work in that situation... its closer to 2 liter, but still running off the 1.7 brain and other parts. I am afraid the 1.7 injectors will run lean. Any info would be great. Thanks. QUOTE(Dave_Darling @ Sep 3 2021, 12:23 PM) No, they are compatible--they spray a metered amount of fuel just fine. It's just that it's the wrong amount for a 1.7 engine. They can probably be made to inject the right amount for a 1.7, but it will require work to the rest of the FI. It's a fine difference between "compatible" and "correct", but it's there. Especially if you are selling the parts. --DD |
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