Walbro 255 pump

[tatty]

Just fitted my walbro pump tonight in record time.... 28mins

Anyway, car is a 2000 "X" reg uk turbo, has yellow injectors as standard, now what can i raise the boost to now that i have the larger pump fitted????

Any ideas???

Surely it'll go higher as fuel cut must be higher also

Martin

[arch]

The problem you have is that fitting a higher pressure pump means you will have more fuel pressure available. So it depends on how good your regulator is, if your regulator doesnt regulate your supply fuel pressure to exactly the same pressure as before fitting the new pump you will either run lean or more likely rich. Realistically you should fit a decent fuel pressure regulator, fuelab or the like, and then have the car mapped to suit the fueling. Its not as simple as squirt in more fuel and crank up the boost.

[johnnyr6]

Also fuel cut is the same as its controlled by the ecu. There are 2 ways to raise the fuel cut limit, A remap or the cheap option is a fuel cut defender. If you go down this route you'll defo need a fuel pressure reg.

Out of interest i ran my sti at 1.2 bar using a fcd, walboro and fpr for years with no probs. I no longer need the fpr or fcd if your interested.

Cheers, johnny.