in for some answers. i wanna know this as well.

 

I dont see a lot of people running an aftermarket FPR which is why I have some confusion over it. I come from a DSM background but the X is another beast in general

 

i hear its recommended on larger pumps like the aero 340 n things. thats what dino told me

 

Where does the double pumper fit in in regards to "big" fuel pumps? I am trying to find the best option for breaking 500 at the wheels

 

Larger pumps (bigger than 255's) upgraded fuel rails, surge tanks and probably 2000cc injectors since there is nothing between 1300's and 2000+ yet. I would assume all those would be a good reason if not a necessary reason to get an FPR kit.

 

Even cars with 500hp is still stock?

 

:yeahthat: I have been running my BR Double Pumper with stock Fuel Rail w/ FPR and DW1300cc Injectors for a few months.

Just added a AFPR and Fuel Rail last week just cause I have a problem spending money.

 

If you are running an inline pump like a 255 then you will need a FPR. But for in tank setups you should be good up to a 340 you also might look into porting the return line orifice.

 

not that I could tell car ran fine. I was running e85 85% of the time and 91 the other 15%. I was on stock on turbo and just your common bolt ons. Now I am running the EF4 with short runner manifold and a few other things.

What are you plans with the car when you put the double pumper in?

 

Doing SSP clutch packs. After breaking those in, upgrading to a twin scroll T4 setup, cams, 1300cc and double pumper. Shooting for 500 at the wheels.

 

35psi!