3800 Can someone explain to me...

[zeez gtp]

what ipw's are? and how high can they go? and what should they be at? and what size pulley can you run until they get to high with stock injectors? thanks

i think i have somewhat of an idea, just thought i could get a better explanation

z

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[superchargedgp]

your IPW's should be about 18-20, 21-22 being high, 23-25 being maxed out.

IPW - injector pulse width- The PCM uses MAF and engine load (rpm, gear) to calculate a base injector pulse width which is the time each injector is open to squirt fuel into the engine. The bace IPW is recorded in tables in the PCM as a starting point. The PCM then gets smart and uses fuel trims to "learn" and optimize the fuel delivery for performance and emissions. AT about 22 a stock injector is "static" (fully open and flowing as much as it can)

 

[zeez gtp]

cool, thanks mike

 

[Royalgtp]

in the cold weather Im at about 21-22 with a 3.0 and my mods.

Now im around 20 or so.......

 

[imported_Diavolo]

supposably the formula is 120000/rpm = STATIC

At 6000 max ipw's should be 20, although I think that is slightly low. maybe someone else konws EXACTLY when the injector is going static