Does anyone know the difference?

Between the Walbro 255 High Pressure Fuel Pump and the Walbro 255 regular pressure fuel pump?

Why would I need, or not need, the high pressure pump?

 

The regular is what you want. I don't think there's a difference anyway. Just a type-o.

 

Yeah, that is what I have been told.

I just want to know what the difference is between the two.

No one seems to know.

 

i didn't know there were 2 different ones... link please?

 

It shows up on various vendors. I forget where I've seen it... Somewhere on NABISCO IIRC.

 

Here

Walbro 255lph
http://www.ecutuning.com/product_Fu...RX,+99-03+Subaru+Impreza+2.5l+255lph_972.html

Walbro 255lph HP
http://www.ecutuning.com/product_Fu...+99-03+Subaru+Impreza+2.5l+255lph-HP_973.html

 

I posted this question on NASIOC as well, and I got a solid answer there regarding the difference. I want to share it because it is an important difference...

This is a response from Hotrod

Based on the vauge answers I have been getting, I would have bought the wrong pump. I did review the graphs that hotrod is talking about, but they didn't mean anything to me, because I don't know the potential fueling requirements of FI applications.

 

based on vague answers I received, I wonder if I WAS SOLD the wrong pump?!?! :eek4:

 

Aww crap. I got my pump second hand... now I need to get it out and check the numbers on it. Good info to know!

 

great info man! thanks for sharing!