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View Full Version : boost breakin up


seansr20
10-31-2010, 06:23 PM
my 95 240 w/s13 sr20det is running top mount t3/t4, fmic, hks step2 stage2 264 cams, 740cc nismos, z32 maf, nismo fpr(stock pressure), tuned ecu and 17 lbs of boost, no air filter. ran same boost on stock inj. and maf with jw reflash and no problems. after upgrade boost starts breaking up at high rpm usually in 2nd gear, 1st no issues. feels like it runs out of air or fuel. would lack of air filter max out z32 maf?