TD04 fuel pressure

[MarcoGTTurbo]

Hi all,

Done a search but cant find the info I need.

I know theres no 'set in stone' answer as every engine is differnt.

I just want to know roughly what PSI I should be using on my RRFPR at 14PSI from the turbo - TD04L, FMIC, Tubular Mani, 2.5'' decat turbo back exhaust - Stock ECU

I have a wideband and just what to start as close as possible as I will be doing the testing and runs myself

cheers

Mark

 

[steo800]

Think stock is 33 psi

So add a few psi for safety and allowance of higher exhaust flow and boost for first run

Maybe 36 psi, vacuum on rrfpr and engine cold from memory

 

[glanzatd04l]

im running my rrfpr at 3bar running td04l at 1 bar boost, but you still need it fine tuned on the rollers.

kevin

 

[dac69er]

surely you will just hit fuel cut on the standard ecu at 14psi?

standard pressure will be fine to start with.

 

[MarcoGTTurbo]

surely you will just hit fuel cut on the standard ecu at 14psi?

standard pressure will be fine to start with.

Hey dac69er, forgot to mention HKS FCD

 

[dac69er]

Hey dac69er, forgot to mention HKS FCD

That is the most important bit!!!!

 

[Jay]

My advice is to start too rich then lean it off in small amounts until your wide open throttle reading is in the 11's. With a HKS FCD you can only tune for wide open throttle. Idle and cruise conditions might be out but it's WOT where stuff usually breaks.

 

[Skalabala]

My advice is to start too rich then lean it off in small amounts until your wide open throttle reading is in the 11's. With a HKS FCD you can only tune for wide open throttle. Idle and cruise conditions might be out but it's WOT where stuff usually breaks.

Could not have said it better