guys....i got my cams in as well as my fuel pump...but the fuel pump has a piece of it "nipple" broken...can i run the cams and get tuned with the stock pump until i get my hands on another pump then just swap it in or do i have to wait to get tuned with the walbro??

thanks for the replies

 

you have to get tuned with the walbro again

 

get another pump then get tuned. as the walbro obviously flows more fuel so adjustments need to be made to compensate for it

 

Negative... 255 fuel pump go hand in and with cams.

 

get the pump bro..

 

just because you have a walboro installed doesnt mean you are flowing more fuel... it means you have the ability to and are less likely to hit fuel cut. I love how people think that when you throw the walboro in you are all of a sudden flowing this high amount of fuel when in reality you are just able to flow more fuel for when the engine calls for it

 

if you get tuned without the pump in and then put the pump in after you are going to have to get re-tuned. Put the pump in first!

 

why ? the fuel pump only allows the addition of more fuel. He may not be able to be tuned as aggressive without the pump but adding a pump does not require a retune

 

the new pump will flow more fuel too the fuel rail period. 255lph to 190lph in the stocker i believe. so if u are running the same pulsewidth with higher flowing pump would it not run rich. that is why it needs retuned. the pump runs constant rate not variable.

 

i was thinking the same thing as bigric...but what the hell..i will wait for the pump

thanks for the replies again!!

 

The fuel pressure regulator has a bypass/return. Extra fuel runs back to the tank through the return line. The only time this does not happen is if the pump you use as a replacement overpowers the stock fuel pressure regulator.

 

the pump swap should be able to be done without a retune. The factory fpr will keep the pressure to the rail the same.

However to get the benefit of the new pump a retune would be required

 

pump is somthing you should always do with the cams

 

Thats why!