Low impedance injectors
11-28-2006, 05:35 PM
#1
Low impedance injectors
Looking at switching to an Acceleronics VersaFueler low impedance injector system. Anyone have experience with the low impedance injectors? I've heard they are much better at idle and part throttle when the injector pulse is very small. Heard that high impedance injectors are not matched well at all because of the opening and closing rates at low load.
11-28-2006, 05:45 PM
#2
Adkoonerstrator
iTrader: (4)
Join Date: Nov 2001
Location: Deep in the seedy underworld of Koonerville
Posts: 21,436
Likes: 0
Received 3 Likes
on
2 Posts
I don't know about low impedance injector stuff but, do know that 57lb/hr @ 43.5psi Siemens high impedance injectors drive/idle fine in a basically stock 5.3L. 
They actually seemed better than the stock injectors and the SVO 42# injectors that were on the same engine. 
How big of an injector were you looking at?
They actually seemed better than the stock injectors and the SVO 42# injectors that were on the same engine. How big of an injector were you looking at?
11-28-2006, 05:51 PM
#5
Adkoonerstrator
iTrader: (4)
Join Date: Nov 2001
Location: Deep in the seedy underworld of Koonerville
Posts: 21,436
Likes: 0
Received 3 Likes
on
2 Posts
Damn, that is a whole lot of injector. 
The biggest high z injectors I've heard of are 75# units. Don't hear much about them because by that time most people just change up to low z.
The biggest high z injectors I've heard of are 75# units. Don't hear much about them because by that time most people just change up to low z.
11-28-2006, 05:54 PM
#6
Originally Posted by XLR8NSS
Damn, that is a whole lot of injector.
The biggest high z injectors I've heard of are 75# units. Don't hear much about them because by that time most people just change up to low z.
The biggest high z injectors I've heard of are 75# units. Don't hear much about them because by that time most people just change up to low z.
Trending Topics
11-28-2006, 06:12 PM
#9
TECH Senior Member
iTrader: (45)
Join Date: Jun 2005
Location: Hennessey, Oklahoma
Posts: 9,439
Likes: 0
Received 11 Likes
on
5 Posts
Originally Posted by 1slow01Z71
High impedence they are ford style IIRC you have to change to the car style injector plug in order ot run them
11-28-2006, 06:16 PM
#10
I dont know hardly anything about tuning I just know the pulse width of the injector will have to be shortened whether there is a table for that or adjusting the A/F ratio via the VE table. It would just require you retuning the whole damn thing pretty much since your injectors will be flowing twice as much at a given pulse width.