Injector opening time ms on siemens 220 lb

[mrsyclone]

Hi I have switched from 160 lb injector to siemens 220 lb. I wonder what kind of opening time you run on them? I have a fast XFI and on my 160 lb I run 0,8 ms. What do you recommend for 220?

Thanks

Robert

 

[lazaris]

Obviously its going to less but I dont know if they can be controlled much lower than that.

 

[Eric Stage I]

Seemed like I had to keep it around .8 to keep them somewhat stable at idle. The A/F would still float around at idle, but not bad for a track car. That was with E85.

 

[lazaris]

What injector are they? Some of the newer bigger injectors work better than the 160's at lower pulse widths.