The walbro sock filter sucks, its smaller, and flows much less... get rid of it!

This is bloody funny...they produce a good fuel pump but try to save .0001 cent in producing a crap filter...

You know you have problems whwn the stock one is better than the after market one!

They do?

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I am only an asshole on the internet :)

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Well the Walbro its as bad as you may think...but Bosch is always better!

A 500hp fuel pump's a bit excessive don't you think?

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MY09 Evo X - 1.6bar@3500rpm - got lag?
Barbagallo - 56.03 (S); 1:08.09 (L)
Collie - 50.77
Possibly the most under-driven Evo X in the world??

Some of us have longer and bigger tools that we play with and need all the pressure we can get to get the satisfactory result....

I very much doubt that the Walbro pump is rated to a genuine 500HP.

I have removed the small sock and re-installed the stock one and it made a small differance, so I re-installed the stock fuel pump. Problem gone......

Me thinks its the pump itself, some how I picked up a U/S pump. I have spoken to the seller and he is sending out a new pump. I also went to the trouble of taking it to a auto electrican. What he found was that there is a computer induced voltage drop. When the pump is priming you get full power to the pump, when your at idle the voltage drops to 7 volts and when you put your foot down it goes to 13+ volts. The electrican believes that the ECU is regulating the voltage to the pump.

So what do you guys think

Hrmm... dunno about WRXs, but Im pretty sure GTRs do a similar thing. When your giving it grief, basically it ups the voltage and pumps a higher volume of fuel, but say, when at idle, the voltage drops and pumps less fuel.

Not sure if its the same on the WRXs though as I said.....but maybe they do the same?

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I don't mind coming to work, but that eight hour wait to go home is just bullshit....

sorry to hijak (again) im getting my link put in on monday and tuned. got a walbro fuel pump coming soon (hopefully before the weekend). If i get the like put in and tuned on monday before the fuel pump gets here, will it be ok to fit the pump after ? will it throw the tune out ???

and whats this about keeping the stock filter ? what happened with the walbro one ?