TheDriver

iTrader: (2)

What fuel pressure are you guys running? Please list your setup with pressure. (Injectors**, fuel pump, fuel lines, fuel rail, turbo, boost, power ect.)

I have an idea of what I want to run but just curious to see what's common or normal.

Updated ;-) Thanks Joe

Joe Perez

iTrader: (8)

I didn't see you mention the most important variable, which is injector size.

Replacing the fuel pump and filter is good preventative maintenance on a 15-20 year old car, but aside from that, you shouldn't need to upgrade anything else at reasonable power levels. On my last car (1.6) I was using stock lines, rail, FPR, etc, with a TD04H-15G turbo at 14 PSI making 210 WHP. This was with a set of 440cc-rated injectors, and I had a fair bit of headroom left- duty cycle never went much above 70%.

TheDriver

iTrader: (2)

FYI I am going to be running a built 1.9, with ID 1000's and a bosch 044 shooting for 400-450 on race gas. Thinking of running around 50 psi but not sure if that's really over kill.

Edit: Other notable items: stock fuel lines, M-tuned fuel rail

muoto

Walbro 190hp & DW800cc. With 80psi fuel pressure DC% is around 75%. E85 and around 300whp

Stock NB return style fuel system with m-tuned dual feed fuel rail

TheDriver

iTrader: (2)

Dayum, not worried about that fuel pump at that pressure?

muoto

I am. DW300 pump is going in next. Also 800cc isnt enought, maybe I get ID1000 or 1200cc next

shuiend

iTrader: (24)

ID > DW. I have ran both ID1000's and DW1000's in my car and the ID's are by a long shot better then DW.

I think ID's like to run a bit higher then stock fuel pressure. Looking around on their site it seems at about 70psi that the ID1000's should top out at about 1100cc.

One day when I have time to convince Tim to build me a dual feed fuel rail I will switch over to an AFPR and raise my pressure up from the stock levels.

Savington

iTrader: (31)

With IDs and an aftermarket FPR, I would run ~50psi on gas and ~70psi on E85.

shuiend

iTrader: (24)

Is there a reason you don't run higher with gas? Is it because the extra head room is not needed?

Savington

iTrader: (31)

Idle, basically. If you can still idle stoich at 70psi base, then go for it. The IDs want to be run around ~90psi rail at WOT.

Faeflora

iTrader: (2)

I idle at 80psi. With ID1000. No problemo.