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Toyota 4AGE injector guide

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Posted

4AGE Injectors

Note: Low impedence injectors require a resistor pack.

Standard Nippon Denso Injectors

182cc, dark grey, 2.0ohm, 23250-16010 (AE86 4AGE)

200cc, pink, 2.7ohm, 23250-16070 (AE82 4AGE)

210cc, blue, 2.4ohm

[insert Picture Here]

213cc, beige, 13.8ohm, 23250-16080, (AW11 MR2)

250cc, green, 13.8ohm, 23250-16110

365cc, Orange, 2.9ohm, 23250-16061 xxxcc, Red

7MGTE 440cc Injectors will suit an upgrade for a 4AGE engine.

Info taken from Rollaclub

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Posted

I generally use this as a rough general guide.

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Posted

4AGE Injectors

Note: Low impedence injectors require a resistor pack.

Standard Nippon Denso Injectors

182cc, dark grey, 2.0ohm, 23250-16010 (AE86 4AGE)

200cc, pink, 2.7ohm, 23250-16070 (AE82 4AGE)

Only the late model AE82's came with the pink injectors, Early have black, I will fix this up on RC too.

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Posted

Been looking into injectors recently myself, and that guide you posted Danny is good stuff.

So Casey, your running 440cc injectors. If i understood right, 440/5 is 88. 88hp? So your injectors will allow for 88hp each, or max power of 352hp? 262KW?

Is that like overkill? Like isnt it unnecessary and could potentially flood the thing?

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Posted

you wont flood anything by just running larger injectors. you will however lose some tuning resolution. much like going to a 3 bar map over a 2 bar map. idle control also gets worse the bigger you go with injectors, but at 440's you wont see any of these issues really unless you run a craptastic ecu

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Posted

As trdee said it won't flood anything, and still may not hurt tuneability as the gze injectors are a tad small for 14pounds of boost(not sure how much with a FMIC) on an aftermarket set up with much healthier spark from LS1 coils and better engine management.

Also you are thinking in terms of max power there, i don't think i'll need to run these even at 80% duty so yeah, its almost ready to go so ill keep you all updated.

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Posted

One additional thing to keep in mind when using different injectors is the difference in injector "dead time" or "lag time".

Different injectors have different deadtimes and this effects the tuning of your fuel map. Deadtime is also related to fuel pressure.

When using an aftermarket ECU with injectors that have an unknown deadtime, you should really have the injectors tested to measure the deadtime so you can setup the ECU correctly. There's a few sites around that show how to measure them properly, I'll post some up later.

If the deadtime is setup incorrectly you will have a wandering AFR with slight voltage changes (using indicators, headlights, thermofan, additional fuel pump load when hot, varying voltage due to alternator rpm's, etc etc etc). When it's configured correctly the deadtime is adjusted with relation to voltage level (and even fuel pressure if your ECU is capable), then you end up with a rock solid AFR that responds exactly as commanded.

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Posted

250cc, green, 13.8ohm, 23250-16110

So when people mention Magna 250cc injectors as an upgrade for a 4age, is this them?

Or a different ohm, 250cc injector?

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Posted

Pwease?

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Posted

The pictured green ones are smallport injectors. Not sure about the magna ones, maybe they are the same p/n

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