geists2k

Does anyone know the maximum injector size that the stock ECU can manage?

revhi

The stock cant manage anything over stock

Silver9k

I'd have to agree ^

geists2k

Maybe a better question is what is the stock size?

Silver9k

I believe they are 440cc

revhi

Less I think 380cc

Slows2k

360-380cc/min dpending on who's flow sheet for 00-03 injectors. Any injector size larger than stock can't be run without using something else to control them.

Silver9k

really? I swear I've heard 440...but I very well could be wrong...if they aren't 440's I don't understand how SC guys can get so much out of stock injectors.

Silver9k

I stand corrected...

So, at that small...wouldn't say a set of 550's make many F/I goals much easier. I just remember back when I had my 99 Eclipse...it had 440's stock and the 440's were maxed out at about 250whp, then I used 660's and they were at about 70% duty cycle at 300-310whp...just seems that 380's would be at a fairly high duty cycle stock and then to be at 300whp with them on pump gas, I guess I'd be scared.

Slows2k

Sideways found the limit on stock injectors using EMS around 360whp. The EMS allowed him to run much more fuel than a stock PCM will.