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ID1050x Fuel Injectors - 1065cc on stock engine, turbo and fuel pump.

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Hey guys! glad I found this place at a time like this.

My 2012 evo x is suffering from rough iddle, and my mechanich pointed out that my fuel injectors seemed to have been "modified" by the previous owner (lots of visible bends on the metal bits underneath), and that they most likely were the culprit, both for the rough iddle, and the missfire on cylinder 4 I get once i a while.

With that in mind, i managed to get my hands on a set of ID1050x Fuel Injectors - 1065cc, and sent them to him to get them changed. he installed them and called in the tuner for the adjustments on the map.
However, the tuner didn't manage to get the mixture right, despite his couple of tries, it was always too rich. He eventually gave up, and I'm back with my old faulty injectors, and a rough iddle.

I'm saving up some cash for a proper tune in a dyno, so my question is, should these higher flow injectors work on stock internals/pump and turbo? or would I need a stronger pump, or perhaps a bigger turbo? The folks at MAPerformance assured me it should work, but since my tuner didn't manage to get it working, it got me a little suspicious.

What do you guys think?
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1050x injectors shouldn't be a problem at all with a stock setup. People run 2000cc injectors on the stock ECU and can get a decent, if not OEM, idle out of a tune. Either get someone to look at your logs and make sure your MAF/MAP readings are normal for a stock car to try to eliminate the stock injectors being the issue (or get some cheap, second-hand OEM injectors). If everything looks fine try a different tuner as 1050x shouldn't be a challenge.
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1050x injectors shouldn't be a problem at all with a stock setup. People run 2000cc injectors on the stock ECU and can get a decent, if not OEM, idle out of a tune. Either get someone to look at your logs and make sure your MAF/MAP readings are normal for a stock car to try to eliminate the stock injectors being the issue (or get some cheap, second-hand OEM injectors). If everything looks fine try a different tuner as 1050x shouldn't be a challenge.
That's good to hear, I guess my tuner is a little shady afterall.
I'm going to find a better one as soon as I can. The car isn't exactly stock tho, it has cold air intake, down pipe, custom exhaust and a Greddy intercooler.

Most issues have been adressed already, and the iddle is much better than it was when I got it, still rought tho, so the injectors are the last suspect, before taking the engine appart.
The ID1050x fuel injectors should work fine with stock internals, pump, and turbo on your 2012 Evo X. It is possible to run larger injectors on a stock setup; the key is properly adjusting the fuel map during the tuning process. If the fuel mixture is too rich, it likely means the pulse width of the injectors (the amount of time they stay open to spray fuel) is too long. This is something that needs to be adjusted during tuning.

However, if the tuner wasn't able to get the mixture right, there may be other factors to consider. For instance, he may not have enough experience with these injectors or the specific software being used. Alternatively, there might be other issues with the car that are preventing a proper tune, such as a malfunctioning oxygen sensor, a vacuum leak, or problems with the mass airflow sensor.

In any case, if you're planning to save up for a dyno tune, that would be your best bet. A professional tuner with experience on a dyno should be able to make the necessary adjustments to your fuel map to accommodate the larger injectors.

Lastly, please note that while these injectors should work fine on a stock setup, they are designed to support higher horsepower levels. If you're not planning to significantly increase your horsepower (for instance, with a larger turbo), you may not see any real benefit from these larger injectors. They're more about supporting modifications than providing a direct performance increase.
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