Teach me about fuel injector please!

[mickey]

Every time i look at the ad or people talk about it, I don't know nothing about fuel injector. Well i know injector is fuel spray into the head cylinder but i don't know how to understand about CC. For example, let say i have 550cc fuel injector and i see 880cc fuel injector for sale. I don't understand it but correct me if I'm wrong, the more cc, the faster is it??.

 

[reddragon1]

The simple way is the more injector you have the more fuel you have the more fuel you have the more safe power you can make.

 

[mickey]

The simple way is the more injector you have the more fuel you have the more fuel you have the more safe power you can make.

im not sure if i get it. im start to understand it but let say i take out my 550cc injector and put 880cc injector. Is it already give me more horsepower or is not make it different yet?

 

[WES_393]

When you boost an engine you are cramming more air into the cylinders. The more air you have, the more fuel you need so that you don't run "lean". The cylinders in a turbo engine are mainly cooled by fuel. Too little fuel (or lean) and things start to get very hot. The larger the injectors, the more boost you can safely run on your engine.

So yes, the bigger the injectors the faster you car can be. But they won't make your car any faster without tuning and more boost. In fact, if you take out the stock injectors and just throw in larger ones, you will likely lose performance from the engine running rich. On a NT car such as your, injectors will make very little difference until you start getting into much higher power levels or start boosting.

 

[blkgst97]

Just throwing in bigger injectors will not give you horse power.Without a way to tune for bigger injectors it would just be dumping too much fuel and if it wanted to run at all it would be extremely rich. Having higher flowing injectors simply alows you to not run out of fuel and continue to make power beyond what a lower flowing injector is capable of. So if you are not outflowing your current fuel injectors getting bigger ones is doing you no good.

 

[Leonthefaded]

So in my engine if I decided to use slightly larger injectors without a tune. It would be bad. Especially if I'm as near stock as I currently am?

 

[blkgst97]

You need a way to compensate for the larger injectors, not necessarily a tune. In link you change the global fuel compensation and the injector dead time so your airflow per rev is where it needs to be and you are good to go. No change in the tune at all. The injectors just need to be dialed in.

Based on your mod list, yes. You should have no reason for bigger injectors.

 

[Gruff511]

For example, let say i have 550cc fuel injector and i see 880cc fuel injector for sale. I don't understand it but correct me if I'm wrong, the more cc, the faster is it??.

The CC (cubic centimeter/or ml) is how much the injector can flow at 43.5psi or what ever psi its tested at. It doesnt necessarily mean it operates faster but it can flow more fuel faster.