hi,
ive just had full decat exhaust fitted front mount intercooler,had an induction kit and dump valve,on a 95 wrx wagon,also had uprated fuel pump and regulator fitted,after driving her home im getting judder on constant throttle,the fuel pressure is set to 3.5bar,does anyone know if this is to high a pressure,
thanks
trekkker

 

got mine set at 3.2 bar with pipe off on tickover
ken

 

How did you set 3.5bar, with the vacuum pipe on, or off ?

3.5bar at "atmospheric" (hose off) would be ok, but if you adjusted it when the hose was on, it's going to be very rich.

Try re-setting it to 3.2 bar, hose off. Ideally, the engine needs to be warm.

Mark.

 

thanks for the info ill have a look tomorrow,not knowing exactly what im doing could somone explain in a easy way so i know what to do,
thanks
trekkker

 

For the best advice we need a little more information. What pressure regulator are you running and what is your maximum boost target. I assume you have fitted a Walbro 341 255 lph.

 

your right on the fuel pump walbro,the regulator is an fse unit,

trekkker