MicroSquirt.com read only forum (Jan.15,2018)

Hello,

I just installed really old cosworth injectors, witch are modified to flow 1000cc/min and problem is how to set PWM limits and time treshold. Injectors are 2.6ohm and now connected without resistors or flyback board to v.2.2 MS. Engine is 2.3liter turbo with 9.4 basic compression.

I noticed that the bloody thing doesn't stay running in anything smaller than 1.6ms and 85% and it's hard to get it idle below 1700rpm, or I can say that anytime PW goes under 2ms it tends to die. So is there any way to go around this or is this best I can get? It might be that these old injectors just cant cope low PW:s needed for the idle? Ah allmost forgot AFR:s are now about 12, MAP about 50kpa, RPM 1700 and PW 2.0 in idle.

Little progress!
I got it to idle at 1300 with AFR 14, and it seems to deliver enouhg fuel now, it actually is now too rich above 5000RPM and bogs at 5800. I'm still woried about my PWM settings, are they too high? Or it doesn't run on smaller settings but is it too hard on the injectors or for MS? Would it be wise to go for a flyback dampening board, or am I safe to run like this?