gvr4144
Well-known member
How many of you guys are running low independence injectors? Or have a reason to not delete the resistor and run highs.
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low independence injectors
- Thread starter gvr4144
- Start date
prove_it
Well-known member
You got that backwards. Mostly everyone is running low impedance. High impedance is the pencil type that allows the resistor box to be deleted.
Not running now, but if I need more than 1600ccs I will. The decision is mostly about idle quality. High impedance injectors see more current and can cycle quicker at low flow rates. This helps a lot since our ecms (stock) have very slow injector drivers. Most of the ethanol users are going to high impedance to help with the idle issues with E85 and huge injectors.
Is it a huge difference? Not really, FIC claims the 2000+ injectors have a nearly stock
idle quality, but it really comes down to the tune.
Other than that, high impedance means a resistor box delete, which cleans up the engine bay. If you put low impedance back in and forget the box, then you'll fry your injector drivers as the current is too much.
Not running now, but if I need more than 1600ccs I will. The decision is mostly about idle quality. High impedance injectors see more current and can cycle quicker at low flow rates. This helps a lot since our ecms (stock) have very slow injector drivers. Most of the ethanol users are going to high impedance to help with the idle issues with E85 and huge injectors.
Is it a huge difference? Not really, FIC claims the 2000+ injectors have a nearly stock
idle quality, but it really comes down to the tune.
Other than that, high impedance means a resistor box delete, which cleans up the engine bay. If you put low impedance back in and forget the box, then you'll fry your injector drivers as the current is too much.
Last edited:
Yao
Well-known member
I am running hi-z injectors from FIC. I like the idle quality when it does run 
plus it gets rid of engine clutter, just a little bit.
plus it gets rid of engine clutter, just a little bit.gvr4144
Well-known member
Sorry for my poor communication... I was just wondering if there was a reason not to delete resistor and not to run highs. But you cleared alot up for me prove it. Thanks!
prove_it
Well-known member
No problem. That's why I'm here.
slugsgomoo
Well-known member
if you live in california and can't run ONLY e85 most of the high-z injectors aren't for you, since they're not MTBE compatible, for what that's worth.
ApexHunter
Well-known member
^ Interesting. Why is that?
slugsgomoo
Well-known member
from FIC:
Quote:
CAUTION! The internal construction of this 2150cc/min injector includes a seal that has been found to swell when in contact with MTBE from oxygenated fuels like Q16 or VP Import. This swelling causes a significant reduction in flow through the injector and therefore renders it unsuitable for use with MTBE oxygenated fuels.
Quote:
CAUTION! The internal construction of this 2150cc/min injector includes a seal that has been found to swell when in contact with MTBE from oxygenated fuels like Q16 or VP Import. This swelling causes a significant reduction in flow through the injector and therefore renders it unsuitable for use with MTBE oxygenated fuels.
