Lets talk fuel atomization on fuel injectors upgrades

[dre256]

Re: Lets talk fuel atomization on fuel injectors upgrades

Chris or who ever programmed your ecm should know that based on the data log. Also note that the duty cycle will be different between a stock and custom programmed ecm. If you have a custom program, changing injectors or raising the fuel pressure may have a negative effect on the way your engine runs, since it was programmed based on a stock configuration.

I will ask my tunning shop and gets oppinon then and see if it mounts to anything. Thanks for the info Sam!

[dre256]

Re: Lets talk fuel atomization on fuel injectors upgrades

^ This. What size are the stock injectors for our cars? I would imagine GM uses the same ones for all of our engine options. I'm guessing 330 maybe 410 for the 3.6? I have not done much research yet for my car since I've been focusing mostly on the other car.

GM didnt, each engine has its own injectors. I looked it up on GMpartsdirect and each engine has diffrent prices for the injector.

What am trying to fish around and see since the LS1 injectors pounds I would imagine prob near the same as ours but prob higher PSI since the 3900 has a LS1 bore size on the pistons. So they might bolt in and with some tunning incress the effecincy of the engine with a higher PSI and of corse everyones goal here more MPG and HP.

[dre256]

Re: Lets talk fuel atomization on fuel injectors upgrades

UPDATE

Had some time to go down to my tune shop today, I talked to him and he said unfortianlly theres no pratical gain. He said the 3900 already is running 58 PSI injectors so theres no gains swapping them out. I was kinda hoping the G6 was running 49 PSI injectors. Also told me it works on my jeep 4.0L because those old specs of OBD1 and the emitions of those years wherent as strick and atlongest it was good enough, then ready for production. So alot more room for gains on any part of the engine.

Guess this thread is done now lol