do any of yall know if you can turn up the stock fuel pump on a 2007 5.9 to get some black smoke? if so....how? will it hurt the stock injectors?

thanks guys

 

Can't turn up the pump. It's located in the fuel cell. You can do other things to get smoke if that's what your after. Get a programmer, or a module (chip), or aftermarket injectors.

 

do i have to get a better fuel pump if I get some 90HP injectors. will the heat from the more fuel burning mess with the turbo at all?

thanks

 

First thing you should do is get some gauges to watch your fuel pressure and EGT's.
Most people would get a programmer before they changed injectors, you'll be amazed what a Bully Dog or Smarty will give you.

 

You know, you have actually brought up a REAL GOOD QUESTION.

Since everything on our trucks IS computer controlled, WHY couldn't the fuel pressure be turned up via programming ?? I bet it already IS controlled via some kind of programming.

Get a Smarty, you will be suprised by what it will offer you in choices before going to physical mods.

CD

 

The factory pump only puts out 8 psi at an idle, it's not controlled by anything.

 

hey thanks everyone. yeh i have herd great things bout smarty! there may be a way to turn it up. we just dont know yet. ill prolly get a smarty here soon. thanks again

 

As the Smarty has the option to increase rail pressure, is it also increasing the cp3 pressure output?

 

Yes, it is. The in tank pump has an external regulator that will blead fluid back to the canister.

 

thanks for all the help. i just want some smoke w/o spending to much money. will taking off the cat help me get some more smoke?

 

There is an engine return, yes, but the pump is still not controlled by anything that can be tweaked to giive you more fuel pressure which is what he's asking.

Chead, can you explain your need for smoke?
Get a programmer, crank it up and lug the engine, you'll smoke out the place.

 

i just love smokein it up.got a bunch of out of town people where i live. 2.5 million a year. and i wanna smoke them up. i can get just a lil smoke out sometimes but not always. i want to have smoke always. ha

 

I think the OP is confused and is wanting to know about the injector pump, turning up the lift pump wont do anything for power(unless your not getting enough fuel to the injector pump). FWIW the factory lift pump is capable of delivering more fuel, if you get rid of the factory pressure regulator and add an adjustable bypass regulator after the fuel filter. Mine has been running at 12psi WOT for over 40kmiles with no problems, with the factory regulator it would go down to 0 at WOT. Didnt do anything for power but I didnt want the CP3 cavitating either.

 

ok thanks. i just want a cheep way for some smoke

 

The point being missed here is that it does not matter at all what pressure the transfer pump gives. All that matters is that it gets fuel the back of the injector pump. There is an actuator on the back of the injector pump called the fuel control actuator. It is was controls the rail pressure, not the transfer pump.