I have a 2001 cummins with 4" exhaust, edge ez, AEM brute force intake, and autometer pyro, boost, and trans. temp. After all of this what do I do next? (she's an automatic) I want to do something with my fuel system but I have no idea where to start any help would be great

 

Lift pump upgrade? Check out a FASS DDRP.

 

FUEL PRESSURE GAUGE!!!!! then put a holley fuel pump in line between the tank and your lift pump and call it good.

 

is the raptor any good? what's better FASS or air dog?

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what exactly is a holley fuel pump

 

of the 3 you mentioned i would do airdog.

 

scare crow- have you made any mods to ur transmission? and what is the blue chip FMS box?

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air dog, ok thanks

 

its just an eletric pump that you put inline between the fuel tank and the lift pump. the different colors indicate different pressures. i run the black and at WOT i cannot suck my FP down below 16psi i idle at 24psi which is ok for me because i have the hotrod VP44. the blue would be ok for the stock vp. these pumps can be found used on ebay for 50 bucks or so. i have been running mine for 4 years and i bought it used. http://www.jegs.com/i/Holley/510/12-802-1/10002/-1

 

I have the FASS 150 on my truck and I love it!

 

my mods are in my sig....

here is the info on the FMS box from blue chip Blue Chip Diesel Performance Specialists

 

What lift pump you get depends on what power level you're planning on making. Airdog 95 is what I run and it is more than sufficient. If it were my money to choose my next mod, I would get a lift pump for sure. If you request a quote on the DB website, you will get the best price, all the vendors are very straight forward about doing business.