[WicK]

did anyone ever do this on a STi? do you guys think that its needed to run around 430 AWHP -500AWHP? or will a single do just fine?

[b00st3d]

IIRC they already have people running ~ 500whp on a single 255 with upgraded injectors as well.

[Snax]

Using the 255 lph high pressure pump, I'd say a single pump is fine if the stock pump is rated for 190 since people are getting high 300's with it. At 500 WHP however, that should be close to tapping it out.

[Snax]

Oops, forgot to post this link if it helps out any -
http://www.roadraceengineering.com/f...pflowrates.htm

[offset]

I would also agree from what I read that a single fp is capable of 500whp (on most dynos). My advice is if you worry about your fuel pressure at that power level, added A/WI and you can lean out your fuel to the point where there is a lot less strain on the injectors and pump both.

offset

[Neanderthal Racing]

i've been told by my tuner that a second fp is unnecessary on mine and we'll be looking at close to 600 whp on c16 w/ 1000cc injs. i am adding an aeromotive fuel regulator, however.

[WicK]

thank you guys for your info, i thought that thats all that i really needed from what ive been seeing on the boards with their set ups. thanks again guys!