Are the PW/190 injectors a bad decision for intercooled trucks? Right now I have the stock injectors. I could install the POD's, but I'm concerned they will make too much smoke and put the EGT's too high. All I want is a modest power increase. I travel a lot on the freeway empty and have a 18' trailer (3330 lb empty) and would tow about 10-12,000 lb max. How much boost would the PW/190 injectors make? My turbo is stock. My pump rebuilder says he set it to make 190 HP with stock injectors. Do I need a governor spring upgrade to realize the full potential of the stock or bigger injectors? I don't need to drive 100 MPH, if I wanted to do that I would drive a car. I would like to be able to drive around 70-75 MPH comfortably and have some pedal to accelerate uphill if I need to pass a slower vehicle.

Brian

 

I run the PDR 190 injectors on the typically tweaked pump. That alone posted 243HP/522ftlbs a couple of weeks ago.
Keep in mind though my fuel screw's all the way in with a modified fuel pin. As such, the PDR hybrid turbo with a waste-gated 14cm housing has to be limited to 38psig boost. The boost figure could be higher with a stock injection timing of 1.4mm, but I'm currently running 2.0mm.

With what you describe, the 190's should serve you well and be MUCH cleaner doing it as compared to the POD's although lower in power but not too much. 10, . .. 20HP maybe, I'm not sure there.


The governor spring controls where the IP begins defueling the pump based on RPM thus limiting final RPM. Stock is 2800RPM I think. Most go to the 3200RPM spring as it allows relatively full engine power on up to normal shifting points without nosing over just before.


Y'all speak up if I'm missing something . . .

 

If you want a modest power increase, POD's are not for you.

Injectors will give you more power even without the governor spring.

The 3200 RPM spring is the best $15 you will ever spend on your truck. You will find that you only need your big toe to drive, where before you used your whole foot.