Fuel pressure problem after installing Racetronix double pumper..

[QWKRTNU]

I have had it this way for years after I went to a new fuel pump with more flow.

 

[THE BLACK MAMBA]

make sure you dont have both pumps running at idle , if you connected the hobbs to the led lead and left the pump connector with the jumper it will run both pumps, the fact that you say its 45 and then you can get 100psi swapping the connectors makes it a return line issue

if the filters for the pump are positioned under the return tube that the pumps mount to you could have blocked the return inside the tank. also make sure that you didnt connect the return line to the vent tube

Here are some pics of how i got the filters positioned

 

[pacecarta]

well now we know the filters aren't the culprit

 

[THE BLACK MAMBA]

So do i need a bigger return then?

 

[V6sleeper]

return line too small for volume you are moving now?

Yup correct, just went threw this..

 

[Boost231]

Nope, just run the pumps at 6v. Lol.. yes you need a bigger return