hi,

I have had a ECUTEK custom-remap along with replacement exhaust with one race-cat in the center-section done to my STI -2003.

I am a total novice when it comes to tuning of cars and how things work so please bare with me...

My tuner recommends a Walbro 255 fuel-pump upgrade.
I have read that many people also replace the stock fuel pressure regulator with an adjustable one.

1. Do I have to replace the stock fuel regulator when replacing the stock fuel
pump?
2. If not why do so many add an aftermarket fuel regulator?


/L-O

 

There has been people not replacing the regulator and find that the higher power pump over powers it..

Others have got away with it..

for the cost of a FSE reg is it worth messing about and taking the risk?

 

Thanks,
How much should a FSE reg cost, my tuner sells these around 180 Euros, is this price ok or can I buy somewhere else cheaper?
How would you measure the right pressure, Deltadash analyse?

/L-O

 

that seems expensive..

try ringing Mark at www.lateralperformance.co.uk

It comes with a small gauge which you fit to the regulator.