Hey, I have a 03 cumins ho. and was wondering as i put more peformance parts on my truck, when will i hit the max output limit on the stock injection pump? and at what hp. gains is this at.

Thanks for the help.

 

Mid-500's seem to be it for me. I have dynoed at 555/960 before I changed to a smaller turbo.

For '03 trucks the choking point seems to be the injectors.

'04.5 and up trucks have the same pump but better injectors, some have done over 650.

 

I have a friend that Dynoed just under 600hp on #2 and 677hp with a small shot of nitrous. He still has the factory CP3 on his 04.

CRIS

 

will it hurt the injection pump to go to these power levels?

 

Your CP3 is safe as long as you give it over 30psi of fuel pressure to the CP3. It is best to give the pump 40psi. At the higher pressures you won't have to worry about your CP3 running out of fuel coming to it.

CRIS

 

i have a pnumatic fuel pressure gauge from auto meter but i can't figure where a permant place for it tohook upto pick up lift pump pressure to the injection pump beacuse the injection pump isn't seprate like on 2nd gen ctd's

 

Get a longer banjo bolt and a fitting from a place like Genos and put it in the bottom of the fuel filter and run your line to the gauge off of that. The fuel filter on a 3rd gen is changed from the top so you won't have to move the line to change the filter.

CRIS

 

One more thing, if you put a better fuel system on your truck and you run over 25psi you will need to get a billet fuel filter cap(this is a must)

CRIS

 

Cris thankyou for the help this will be my next mod.