What fuel pump is in?

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06 December 2010, 10:48 PM

grahamc

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What fuel pump is in?

What fuel pump is in a 2002 factory prodrive STi? Is it enough to reach the 400bhp mark, or do I just simply buy a Walbro 255? What other options are there?

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06 December 2010, 10:57 PM

Billet

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normal subaru pump, would be hard worked at 400 if it even got there, would need walbro or bosch.

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06 December 2010, 11:00 PM

grahamc

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Perfect, thanks...

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07 December 2010, 08:01 AM

dunx

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Would advise swapping it based on it's age alone...

dunx

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07 December 2010, 09:32 AM

grahamc

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Another good point

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07 December 2010, 10:38 AM

f4la k

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It will have a walbro or eqivalent (sp) in if its a prodrive, but as dunx say defo worth swapping due to age..

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07 December 2010, 01:18 PM

dunx

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A friend of mine nearly lost a brand new forged 2.5 motor because the mapper and the engine builder both assumed that his classic had a suitably uprated fuel pump...

Luckily I had advised him to fit a Defi fuel gauge and under WOT the fuel pressure was seen to droop under boost, i.e. run lean...

A re-map was then needed to sort things out !

dunx

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