injector flow

[y2dgone]

So what are our fuel injector flow rated at?

[xtreme 2]

anything?

[exist3nce]

From what I've heard the Optra and Aveo have the same injectors. If thats the case, then its 19 lb /hr or 200 cc/min.

[xtreme 2]

really? That's a lot more than I expected for an N/A 1.6L...

[ontarian_frog]

That would make sense, since using the same injectors in different engines will save money. Plus, it doesn't matter really which injectors are used, as long as they flow enough for the engine, the ecu will compensate anyway if the engine runs rich.

That's why changing fuel regulator or fuel pump or injectors...etc is useless if you can't get more air in the system. the ecu will always look at the data from the oxygen sensors and will adjust. The only problem will be when the ecu can't make the adjustment to tune the exhaust to stochiometric value. Then the check engine light will come on.

My guess is that the stock injectors are fine for at least the stage 1 kit and won't require an ecu tune. The only problems I could see is the maf sensor not liking the boost and the stock fuel map being too lean for a turbo setup.

[AVE0SAM]

i too remember asking this question before and getting an answer about them being the same as the optra.....did you try searching this forum and daewootech...i kno its def on daewootech

[xtreme 2]

didn't think about searching daewoo...

Yea I know there will be a problem with going Lean, which is why I have the Air/Fuel Management piggyback...

[Kinkyllama]

The factory ECU can't lean it out enough to run 44lbs/hr injector with walbro 255 fuel pump

It'll be drivable, but not above ~4k

[aveodude]

That would make sense, since using the same injectors in different engines will save money. Plus, it doesn't matter really which injectors are used, as long as they flow enough for the engine, the ecu will compensate anyway if the engine runs rich.

That's why changing fuel regulator or fuel pump or injectors...etc is useless if you can't get more air in the system. the ecu will always look at the data from the oxygen sensors and will adjust. The only problem will be when the ecu can't make the adjustment to tune the exhaust to stochiometric value. Then the check engine light will come on.

My guess is that the stock injectors are fine for at least the stage 1 kit and won't require an ecu tune. The only problems I could see is the maf sensor not liking the boost and the stock fuel map being too lean for a turbo setup.

The ECU will only read oxygen sensors when you are cruising around. When you are WOT, it will not read anything. And it is a MAP system not a MAF

[ontarian_frog]

Yeah I don't know why I said MAF.