Boost n Pump?
Instructor
Joined: Mar 2007
Posts: 112
Likes: 0
From: Hatfield PA
On another note, (and I apologize to the original poster for going so far off-track with his thread(hopefully some information is gained to him with these discussions)) the main reason that I was wondering about over-running the stock regulator was that most places seem to offer a 225lph pump for these cars as opposed to the 255lph (no to mention 255HP) units. Not much of a difference, but was curious as to why they've gone with the smaller pumps if they're going to go with the WalMart pumps.
Supporting Vendor
Joined: Dec 2001
Posts: 1,571
Likes: 31
From: A dealer near you.
They do have inline pumps, i believe ECS has a kit with it.
AS far as the PSI...you are right, there is no set psi, but anytime you have resistance in a line, it will build pressure. There is resistance in every fuel system, that i why i use PSI.
Pumps themselves flow around 100psi if not regulated, and have ample resistance give or take 20lbs. Once 100 (or whatever number) is achieved, the pump meets to much resistance to flow more, so it can make anymore pressure
The lines and rail are both restrictive. You can get enough volume to the regulator to over run it given the lines.
I have had the entire fuel system out of the car, and a new one built, i spent countless hours with the system, it is good enough to around 500RWHP then needs upgrades, that is with a new intank pump..(walbro)
AS far as the PSI...you are right, there is no set psi, but anytime you have resistance in a line, it will build pressure. There is resistance in every fuel system, that i why i use PSI.
Pumps themselves flow around 100psi if not regulated, and have ample resistance give or take 20lbs. Once 100 (or whatever number) is achieved, the pump meets to much resistance to flow more, so it can make anymore pressure
The lines and rail are both restrictive. You can get enough volume to the regulator to over run it given the lines.
I have had the entire fuel system out of the car, and a new one built, i spent countless hours with the system, it is good enough to around 500RWHP then needs upgrades, that is with a new intank pump..(walbro)
Supporting Vendor
Joined: Dec 2001
Posts: 1,571
Likes: 31
From: A dealer near you.
On another note, (and I apologize to the original poster for going so far off-track with his thread(hopefully some information is gained to him with these discussions)) the main reason that I was wondering about over-running the stock regulator was that most places seem to offer a 225lph pump for these cars as opposed to the 255lph (no to mention 255HP) units. Not much of a difference, but was curious as to why they've gone with the smaller pumps if they're going to go with the WalMart pumps.
http://www.racetronix.com/307vs340.html
The 1997-2002 C5 uses a GRJ420 gerotor pump with integral jet-pump assembly for bucket fill functionality.
