1000cc injectors in a 5.7 ls1

[Corey64]

Hi, I've got some Bosch 1000cc injectors in a procharged ls1 and everything is fine except I can't reduce the injector pulse width below 2ms so idle is a bit rich and no load free rev and hold at about 2000 rpm is absolutely pig rich, I've tries chopping out the ve table but no work. Anyone know how to get them to go to lower pulse widths? I've dropped the min pulse width right down, but I must be missing something. Anyone had this issue?

[ctd]

I had a similar issue with ID 1000's, if I remember correctly it is the "Min Fuel Milligrams" table under the "Transient" tab. Reduce that value & your injector pulse width should go below the 2ms

[Corey64]

Cheers thanks for that, I didn't think about going to the transient fuel tables, thanks again.

[mowton]

IPW= Min Fuel Milligrams*31.124308

If this doesn't get you there you can try running negative SPA

Ed M