Did the Walbro pressure relief mod today
#16
Evolved Member
iTrader: (7)
Copy and pasted**
Walbro 255lph GSS342 Fuel Pump (1 Pump)
The Walbro high output in-tank electric fuel GSS342 pumps have flow ratings of 255 liters of fuel per hour. These particular pumps flow significantly more fuel at higher pressure. For example, at 80 PSI the standard 255 lph pump will flow around 132 liters (35 gallons) per hour. At that same 80 PSI the equivalent HP (high pressure) fuel pump will flow over 210 liters (50 gallons) per hour.
Walbro in-tank electric fuel pumps utilize a proven gerotor design. The outside dimensions, however, are compact enough to fit existing hanger assemblies, without modification.
Walbro 255lph GSS342 Fuel Pump (1 Pump)
The Walbro high output in-tank electric fuel GSS342 pumps have flow ratings of 255 liters of fuel per hour. These particular pumps flow significantly more fuel at higher pressure. For example, at 80 PSI the standard 255 lph pump will flow around 132 liters (35 gallons) per hour. At that same 80 PSI the equivalent HP (high pressure) fuel pump will flow over 210 liters (50 gallons) per hour.
Walbro in-tank electric fuel pumps utilize a proven gerotor design. The outside dimensions, however, are compact enough to fit existing hanger assemblies, without modification.
#22
Evolved Member
iTrader: (8)
Join Date: Dec 2004
Location: West Chester, OH
Posts: 1,347
Likes: 0
Received 0 Likes
on
0 Posts
I'm going to E85 and don't feel like running out of fuel during the tuning, so I'm going to do the pressure relief mod.
#24
Evolved Member
iTrader: (7)
Since its a pressure releif valve wouldn't it really matter mostly on what fuel pressure you run? The pumps would flow the same up to 75 psi of fuel pressure, after that is when is a difference would be noticed. I understand there would need to be a large demand for fuel but i can't see how it would hurt to do.
#25
EvoM Guru
iTrader: (6)
Since its a pressure releif valve wouldn't it really matter mostly on what fuel pressure you run? The pumps would flow the same up to 75 psi of fuel pressure, after that is when is a difference would be noticed. I understand there would need to be a large demand for fuel but i can't see how it would hurt to do.
The one thing that never gets mentioned is why those relief valves are there in the first place, ostensibly to prevent a rupture of the pump case when it's operated inside the fuel tank. Obviously, that wouldn't be good! I run E85 with relief valves disabled, but that thought never completely escapes my mind ...
Thread
Thread Starter
Forum
Replies
Last Post
Boost_Inspired
Evo Dyno Tuning / Results
49
Jan 4, 2014 04:25 PM
EvoX-11
Evo X Engine / Turbo / Drivetrain
2
Jul 5, 2013 06:17 AM