What Fuel Injector?

[Disturbance]

So i can't decide/figure out what fuel injector would be best for my build. I have done the searching and learned that our ecu is set up for high z but we have a resistor pack to run low z injectors. I'm correct on that right? All the threads i find seem to be people running e85, im going to be on 91 pump with a meth injection kit, turbo is an FP black and i already have link v3 full. What injectors would be best for this that will supply enough fuel for this turbo but still have good daily driving capabilities? High z, low z? and around what cc?

 

[snowborder714]

You're correct in that with the resistor pack, we run low-z injectors, and if we delete it, we can run high-z injectors.

Based on FP's site, the Black is rated to flow 68 lbs/min. Then if you look at this page, you can see that to support 68 lbs/min of airflow at 80% IDC, you'll need somewhere around a 1200cc injector. To add a little cushion to that, you could jump to a 1400-1600cc size. Honestly, the injectors around that size that are available are not the best/easiest to tune with as you can usually only tune idle or cruise and not both. In that case, you can jump up to a 2150cc and have the tuning go a little better, but you'll be dropping more money on them.

I'd say do some research on injectors that size, see what other people run, talk to FIC or other companies, and go from there. I know when I spoke to the guys at FIC at the Shootout they were in the process of working on some high-z sizes in the 1200-1600cc range, but not sure where they are with actually offering them in their product line.

 

[Talyn]

What CR are you running, and are you running meth? I don't see 91 pump gas being able to support that large a turbo without really low compression ratios and or meth injection...So if you aren't doing either of those, I would advise you either get meth injection or switch to e85, which would require larger injectors and is why I bring that up.

 

[Disturbance]

It's going to have a meth injection kit eventually I just don't want to buy injectors twice. So if I went with around 2000cc injectors should I do high z or low z?

 

[Tyeler18]

Lowz are plug n play essentially (minus tuning obviously) with high Z you're going to need a resistor pack delete, so if you want the easiest route go with Low Z injectors. I see you're from Tucson, if you need any help let me know. I help quite a few dsm guys down there.

 

[Disturbance]

You've helped me before actually, I'm evan on dsmtuners on Facebook and my buddy Aajay bought the tranny off you. Any advantages to running the high z?