corsasport.co.uk
  Not logged in [Login - Register]  
You Are Not Registered Or Not Logged In  

Corsa Sport » Message Board » General Chat » Fuel Pressure Regulators


New Topic
New Poll 		  Subscribe | Add to Favourites

You are not logged in and may not post or reply to messages. Please log in or create a new account or mail us about fixing an existing one - register@corsasport.co.uk

There are also many more features available when you are logged in such as private messages, buddy list, location services, post search and more.


Author Fuel Pressure Regulators
VrsTurbo
Premium Member

Registered: 8th Jun 10
User status: Offline
1st Mar 15 at 17:58   View Garage View User's Profile U2U Member Reply With Quote
As standard the Megane uses a fpr in tank so there is no return from the rail.

I am fitting a swirl pot with a 044 pump and pressure regulator. Would you put the regulator by the fuel rail or keep it near the tank?
Generation
Member
Registered: 7th Jul 09
Location: Essex
User status: Offline
1st Mar 15 at 21:35   View User's Profile U2U Member Reply With Quote
Mine was near the fuel rail
gazza808
Member
Registered: 30th Jun 08
Location: Peterborough
User status: Offline
1st Mar 15 at 22:25   View User's Profile U2U Member Reply With Quote
Depends of your putting a return on the fuel rail?
Or leaving it with no return?
VrsTurbo
Premium Member

Registered: 8th Jun 10
User status: Offline
1st Mar 15 at 22:42   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by gazza808
Depends of your putting a return on the fuel rail?
Or leaving it with no return?


The return will be from the fpr
gazza808
Member
Registered: 30th Jun 08
Location: Peterborough
User status: Offline
1st Mar 15 at 23:22   View User's Profile U2U Member Reply With Quote
Moving it to the bay will make it easier to run a vac/boost ref line to it.
so the fuel pressure rises with your boost pressure. DDon't know how the standard one did this?

[Edited on 01-03-2015 by gazza808]
VrsTurbo
Premium Member

Registered: 8th Jun 10
User status: Offline
1st Mar 15 at 23:23   View Garage View User's Profile U2U Member Reply With Quote
It's fixed not rising rate regulator.
Generation
Member
Registered: 7th Jul 09
Location: Essex
User status: Offline
1st Mar 15 at 23:47   View User's Profile U2U Member Reply With Quote
No problem
Kyle T
Premium Member

Avatar

Registered: 11th Sep 04
Location: Selby, North Yorkshire
User status: Offline
2nd Mar 15 at 08:27   View Garage View User's Profile U2U Member Reply With Quote
Might have got my terminology wrong here, but doesn't a fixed rate FPR still raise with boost pressure - but just on a static 1:1 rate?

So if baseline fuel pressure is 40psi, it'll add 1psi for every 1psi of boost so at 20psi boost you'll have 60psi fuel pressure.

A rising rate is on a ratio of 1:1.2 for example.

Either way would still need a vac/boost tap I would have thought.

I'd also stick it as close to the rails as possible - as the more pipework you've got between it and the rails - the more scope you've got for the pressure to bleed off.

Lotus Elise 111R

Impreza WRX STi
VrsTurbo
Premium Member

Registered: 8th Jun 10
User status: Offline
2nd Mar 15 at 08:44   View Garage View User's Profile U2U Member Reply With Quote
Nope it's just a static 3.5bar system non rising. A lot of newer cars are like it.

Just is a pain having it in the bay as I'll need to run an extra line.

How I see it if you have 3.5bar at the regulator anything after it should be 3.5bar as its a pressurised system.
VrsTurbo
Premium Member

Registered: 8th Jun 10
User status: Offline
2nd Mar 15 at 20:24   View Garage View User's Profile U2U Member Reply With Quote
ive put it in the bay and ran an extra line under the car.
gazza808
Member
Registered: 30th Jun 08
Location: Peterborough
User status: Offline
2nd Mar 15 at 23:39   View User's Profile U2U Member Reply With Quote
3.5 bar with 2 bar boost means you effectively have 1.5 bar fuel pressure.

And it's anything before the reg is under pressure, the fpr is the restriction causing the pressure to build up.

[Edited on 02-03-2015 by gazza808]
VrsTurbo
Premium Member

Registered: 8th Jun 10
User status: Offline
2nd Mar 15 at 23:59   View Garage View User's Profile U2U Member Reply With Quote
I only run a small turbo. So the 3.5 static is ample can run 330bhp at 3.5 static with 1.5bar boost
VrsTurbo
Premium Member

Registered: 8th Jun 10
User status: Offline
3rd Mar 15 at 00:26   View Garage View User's Profile U2U Member Reply With Quote

 
New Topic
New Poll

Corsa Sport » Message Board » General Chat » Fuel Pressure Regulators 23 database queries in 0.0163729 seconds