REDNECK-WELDING

i have a comp in my 2000 dually but its not tapped...would i be better off doing injectors and not tapping the IP? or should i just tap the pump...i dont want it to blow up though...

JSCumms2000

without tapping it your only gaining like 65 hp... tap it and injectors... its a cummins, it wont blow!! :P

REDNECK-WELDING

i didnt mean the motor i ment i didnt want to blow my IP...dont want to tap it till i get gauges...just wanted to know if it would be safer doing it that way or not

cumminspower79

From what ive read I dont think that tapping the pump is what causes it to go, Its tapping it, THEN starving it for fuel. You need to add a fuel system that can keep up with the amount of fuel your adding. Like a FASS or walbro or vulcan relo, these kits use 1/2 inch line which really lets the #2 flow.

JSCumms2000

that is correct... restricting the pump is what makes it go at a faster pace.. i would without question get gauges... just to make sure all is well, but blowing the pump shouldnt be an issue..

Truckman

VP-44 Died,, After the tap,,
I have owned the truck for three years now with constant fuel pressure @14-18Lbs. I had to tap the pump,,Curiosity killed the cat ,,

Cat = VP-44.

BUT WOW What a power increase,,its amazing ,,PLUG AND PLAY!!!!!!! You Must Pay!!!!!!


TAP IT!!!!!!!!!!

Good Luck

Philabuster

I'm confused by your post. You killed the VP immedately after tapping it or three years after the wire tap?

Marine

It is a hit and miss deal with the VP AFTER you tap it. If it lasts more than a few good runs, it will more than likely last with the wire pierced.
Just be prepared if it doesn't last.
I tow without the wire connected due to heat issues, but it sure is fun when it is tapped.

Truckman

My pump lasted 4 Days after I tapped it,,,,, I was pulling away from this tundra WHEN the pump died,,,He was nice enough to blow the horn as he drove by.....

Tap it You will be amazed with the power.... I had another used pump at my house,,THAT is the ONLY reason I tapped it,,,,CURIOSITY

DMcPherson

for most people its not the the tap killed the pump its that it was already going out and its makes it more noticeable, or finally goes into derate because it cant supply the fuel comanded with the wire tapped. if the vp is in good shape and not already failing yo uwill have no problem, it would be kind of a waste to buy injectors when you have free power with a wire.
and if you dont have gauges you should before you do anything else. either tapping or buying injectors.

REDNECK-WELDING

thanks for the responce...the question i had was yes you can tap the IP but you run the chance of you VP heading south..so would it be safer if i bought infectors?? i know its more money and im wasting power as im not tapped...but would it be SAFER?? if it is i would be willing to spend the extra money to save my punp...thanks

Marine

If you get injectors without some type of boost fooler, you will throw codes. You can get the comp AND injectors- just don't do the pump. You can get the Comp (no pump wire) and not the injectors and still get a good amt of power.

blackdiesel

There is no right or wrong answer here. BUT I will say this if you drive a vp power truck long enough, you will buy a vp44, the ? is when. If your pump is weak now, and you tap it, it can kill it. The added fuel the bigger sticks call for could kill it. OR it will just die on it's own. You need a fuel pressure gauge for sure, but there are alot of pumps that are dead and have never been run with low fuel pressure.

HOHN

My truck lost its original VP with only 40K on it--- with NO tap.

I wouldn't be afraid to tap it-- it can't get much worse than 40K!!

hahaha

blackdiesel

redneck, how many miles are on your pump now?