Insane fuel pressure??

[asecretfile]

Took off a dead holley blue fuel pump on my 87GT carbed

Installed a Carter P4070 which is supposed to be like 6psi MAX, well it knocked the needle off its seat on the carb, pegged my fuel pressure gauge (over 15psi) and flooded out the engine. Pump says 4070 on it

When I try to regulate it down the pump makes a crazy noise

the pump technically (runs) ok if I dont try to knock it down to an acceptable pressure

maybe external EFI pump in the wrong casing or something?

any ideas?

 

[Rick James]

Was it brand new?Whats the gph rating?Some pumps have to run a return line.

 

[Rick James]

I just checked the specs its a 72 gph pump and doesnt require a regulator ,so i would get a new one.No way its a efi pump.

 

[asecretfile]

I just checked the specs its a 72 gph pump and doesnt require a regulator ,so i would get a new one.No way its a efi pump.

yea it was brand new and as I was walking out the door of the store where I bought it the bottom of the box came open and it fell and hit the carpet mat at the door lol

Still took it back and went to mustangs unlimited and got an aeromotive, pressure is stable now

thanks

 

[Rick James]

Cant go wrong with Aeromotive.Thats the $hit.

 

[asecretfile]

Cant go wrong with Aeromotive.Thats the $hit.

Have to take out a loan to buy one...their REGULATORS cost more than alot of pumps...other than that, all is good