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low independence injectors

gvr4144

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Joined
Jan 26, 2014
Messages
170
Location
loveland Colorado
How many of you guys are running low independence injectors? Or have a reason to not delete the resistor and run highs.
 

prove_it

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Jul 3, 2008
Messages
4,201
Location
Sioux Falls, SD
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.
 
Last edited:

Yao

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Joined
Mar 6, 2001
Messages
810
Location
Denver, CO
I am running hi-z injectors from FIC. I like the idle quality when it does run :p plus it gets rid of engine clutter, just a little bit.
 

gvr4144

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Joined
Jan 26, 2014
Messages
170
Location
loveland Colorado
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

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Jul 3, 2008
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4,201
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Sioux Falls, SD
No problem. That's why I'm here.
 

slugsgomoo

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Joined
Oct 16, 2003
Messages
3,742
Location
Tacoma, WA
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.
 

slugsgomoo

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Joined
Oct 16, 2003
Messages
3,742
Location
Tacoma, WA
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.

 
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