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Old February 19th, 2017, 12:26   #98
Veteran Member
Join Date: Dec 2006
Location: Belgium

depends one th eflavour of cp3. with some it is not adviseable to run positive pressure to fuel inlet, and definately not in the amount that a stock cp4 liftpump provides.

reason for this that some cp3 have the case pressure relief back to inlet, and some to the outlet. if its to the inlet, the case pressure will rise 1:1 with feed pressure and this will make the metering valve flow very different as what the will believe it flows.
'99 Black Ibiza GT90: 2260v, ARL bottomend, rosten rods 81mm slugs, 17:1 CR, 35/38mm exh/in valves, 02M, 305mm discs with Brembo calipers, OZ Superturismo 16"x7.5J, .............
Dyno'd area, Old VNT20 setup dyno'd 192whp
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