Doing some research on engines and are the ecotec considered direct injection since its not multiport since it doesnt inject in the intake manifold. or would it be considered cylinder port injection, and if so what is the difference? wikipedia claims that gm used it in an opel in 04 and the gxp engine.

 

Only the 2.0 VVT Turbo (LNF) is direct injected. That means that it sprays right into the combustion chamber rather than into the air intake track / spraying towards the valves.

 

IDK for sure, but I am pretty sure it is called multi-port fuel injection.

 

It's considered Multi Port Fuel Injection for the rest of the ECOTECs.

 

but from what I was looking at mpfi injects into the intake manifold and the ecotec injectors are actually into the head thats why i was wondering if they were considered direct injection

 

Thanks Adam, whats up man. I have'nt talked you in a while. I just got a sick new DJ Ireane cd. Cant wait to listen to it in my car, that is if the dealer ever gets it fixed. Its been there for a month straight. Total time in dealer in the five months ived owned it is two and half months, but yet for some strange reason I still want to keep the car. Kinda weird huh?

Nope, only on the saturn sky turbo, and pontiac solstice gxp

 

No, they are placed somehow along with the intake manifold and they point at the top of the valves (just upstream).

 

so the fuel actually goes through the intake valves and thats the difference?

 

Even on DPI the fuel goes through the intake valve. The injector sits behind the valve and sprays when your valve is open. I don't think they sit in the combustion chamber, but I could be wrong

 

Actually it is placed in the combustion chamber

 

I was reading the wiki article in the first place

 

Yeah, sorry man, I guess it is in the combustion chamber. I guess it is more efficent that way. NJHK knows his ****, so you can trust him.

 

Thanks

Yeah, I first started reading about it when the LNF came out.

 

on the eco it sprays right before the intake valves?

 

On all the other ECOTECs, yes. They point right at the top of the intake valves so when they are operational, while the valve pushes open, the fuel can spray towards the combustion chamber.

 

alright they didnt have any images of placement so i was confused

 

It's alright.

 

i like animations on how different things work

 

So do I. Go on ecotec forum and there is a diagram on the LNF engine, fuel injection and turbo setup. That should help you out some.

 

where at on there? or pm me the link on there same user name

 

damn you're lazy lol

http://www.ecotecforum.com/forums/showthread.php?t=1083

 

that and i cant search worth a damn for anything

 

Bla...it was simple. 2.0 Turbo section, general forum...it was a damn sticky thread! lol

 

sticky schmicky

 

lol

Did it atleast help?