Guys what is the diffent walbro#342 , #315 and #342 do you know it?

 

Flow rate? connections? size?

i don't know I am just guessing.

 

Both are 255lph fuel pumps, but the 341 is "High Pressure," whereas the 315 is normal. I don't know about a 342...

 

But important one is 342 because this is my pump but ı get rid of and now using stock

 

Pump.More information pls

 

Aren't those the sizes?

 

341 and 342 are high pressure

341 if your are looking at the pump standing up, the intake is on the right side of the top and the exit is on the left side of the bottom.

342 has the intake and exit on the same side.

For the evo and STi you need 342

I just found this outt yesterday because i was given a 341 for my STi. I had the whole car apart only to find out i had the wrong pump. }:-(

 

Than my 342 is ok but when ı get rid of yesterday and use my stock pump, car significant faster than walbro pump?

 

running richer with the walbro maybe?

do you have a fuel pressure regulator?

 

Yeah ı think so and now ı'm trying to try and lose system to go faster.

 

No ı havent

 

GSS342 is the proper pump for the Evo

 

Is it necessary fuel regulater?