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Halfnelson
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

Click to view attachment
emerygt350
Nice you figured out what they are. That is almost 100cc too much for a 1.7.
914sgofast2
I believe that green top injectors are for the 1.8liter engines. The yellow top ones are for the 1.7 liter engines.
Quinn Moore
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

Click to view attachment

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
914sgofast2
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.
Halfnelson
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.
Dave_Darling
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
Halfnelson
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?
sholman5
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?

Click to view attachment
Robarabian
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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