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I'll be doing a performance and eventually turbo build on my 2.3L so I've been searching around for injectors and realizing how little I know about them. I'm posting this in general discussion because it applies to any fuel injected engine. I happen to be working on a 2.3L, but the knowledge I seek applies to any of the Ranger engines with port injecton. Just talking about injectors for port injection here, the new direct injection engines use a totally different style of injector.
Let me go ahead and say that I'm not asking about flow sizing. I am aware that there are a bunch of different flow ratings available and that the flow rating needs to be matched to the engine performance. That is the actual needs for the engine. If the engine is only capable of making 100 horsepower, installing larger injectors won't raise it to 200 unless that was the bottle neck in the first place. Likewise, even if the engine is built to make 400 hp, it can't do it if the injectors will only supply enough fuel for 200.
What I'm talking about are the physical variations in injectors. Length, shape, connector, and the like. I see so much terminology thrown around the forums and when I go to places selling injectors the same language is rarely used. Mostly places are selling kits for particular vehicles/engines and mine isn't one of them.
I've kind of figured out the difference between high and low impedence, but not so much what is used where.
I know that the majority are just slip fit using o-rings and the pressure of the fuel rail to hold them in place, but do they all use the same o-rings and/or fit into the same size fuel rail or manifold hole?
I've seen some references to swapping injectors and having to shim fuel rails to fit, but most of the time it's with aftermarket fuel rails but still I don't understand the reasoning. Are they all the same length?
I see people talking about large body or pencil style injectors. I can easily see the difference there, but I don't understand what effects that difference has on the injector. Is it just progression of technology that things are getting smaller, or is there a difference in fitment and function?
I see reverences to EV1 or EV6 injectors. EV6 injectors with EV1 connectors. USCAR and Jetronic. Obviously these terms have some meaning, but they are lost on me.
I do know enough to know that you can get adapters to go from one type of connector to another, but not so much about the different type of connectors and who uses what where.
Is there some top notch guide about this online that I've failed to find through the Google Fu? If so I'd appreciate a link if you happen to have it saved. Figuring out what vehicles came with what injectors has also been challenging because most of what I find is speculation, not something that people have first hand experience with. When looking up injectors on some place like RockAuto, they don't list data like style and flow rating, just the application and a picture.
Let me go ahead and say that I'm not asking about flow sizing. I am aware that there are a bunch of different flow ratings available and that the flow rating needs to be matched to the engine performance. That is the actual needs for the engine. If the engine is only capable of making 100 horsepower, installing larger injectors won't raise it to 200 unless that was the bottle neck in the first place. Likewise, even if the engine is built to make 400 hp, it can't do it if the injectors will only supply enough fuel for 200.
What I'm talking about are the physical variations in injectors. Length, shape, connector, and the like. I see so much terminology thrown around the forums and when I go to places selling injectors the same language is rarely used. Mostly places are selling kits for particular vehicles/engines and mine isn't one of them.
I've kind of figured out the difference between high and low impedence, but not so much what is used where.
I know that the majority are just slip fit using o-rings and the pressure of the fuel rail to hold them in place, but do they all use the same o-rings and/or fit into the same size fuel rail or manifold hole?
I've seen some references to swapping injectors and having to shim fuel rails to fit, but most of the time it's with aftermarket fuel rails but still I don't understand the reasoning. Are they all the same length?
I see people talking about large body or pencil style injectors. I can easily see the difference there, but I don't understand what effects that difference has on the injector. Is it just progression of technology that things are getting smaller, or is there a difference in fitment and function?
I see reverences to EV1 or EV6 injectors. EV6 injectors with EV1 connectors. USCAR and Jetronic. Obviously these terms have some meaning, but they are lost on me.
I do know enough to know that you can get adapters to go from one type of connector to another, but not so much about the different type of connectors and who uses what where.
Is there some top notch guide about this online that I've failed to find through the Google Fu? If so I'd appreciate a link if you happen to have it saved. Figuring out what vehicles came with what injectors has also been challenging because most of what I find is speculation, not something that people have first hand experience with. When looking up injectors on some place like RockAuto, they don't list data like style and flow rating, just the application and a picture.