These injectors look right? MAFT question, too

[unclesam099]

Check out the attachments, they look right? They're Bosch 550cc injectors that I got from a Stealth owner. He said they fit fine in the fuel rail, so I dunno. He never said that he ran them, though.

Also, just got the MAFT blow thru on, and I went out for a short drive to log it. Low trims are already at 139.8%... What gives? It's just set for stock injectors and the SAFC is zeroed out. So I don't know what could be the problem other than the O2 sensor? Idle is kinda rough and low. I am going to make a pressure tester over winter break and see if I can find anything that's leaking.

Any and all ideas are welcome!! Thanks!!

 

[Devicex]

Just because the maft is set to "stock injectors" doesn't help much. You'll have to set it to what works. You cant just set the base to stock 450s and leave the rest 0s and expect it to run as if the maft wasnt there. You gotta read what you're logger is telling you and tune accordingly, in this case looks like you need to at a bit of fuel.

 

[unclesam099]

Yea, I thought that I should add some fuel at idle, but the problem is that the car when it was running a stock setup was idling really rich. It doesn't really smell like it anymore, so I will play with it a bit more when I get some time.

I do hit fuel cut sometimes when going WOT with the SAFC at +10% on the high RPMs... So I think that I'm at the limit of the stock fuel.

I'm kinda new to the whole tuning thing as I had a non turbo Stealth R/T til a few months ago. I've read about it all, but haven't really done it.

Anyways, I will work on it when I have time over this break.