4000rpm

  1. S

    My turbo starts to whine at 4000RPM? Is turbo going bad?

    when driving at low rpms you cannot hear the turbo even when i shift at low rpms you do not hear the blow off valve . but when at 4rpms and i give it throttle you start to hear it spool up and whine then when i shift at around 6-7 rpm blow off valve goes off
  2. M

    My vacuum goes up to 23 solid while cruising 2000 to 4000rpm?

    only dives to 15 when throttle is jumped on and normalizes around 19 while at idle Give me a run down on what this means about my engine? Good bad normal etc? 19 idle 23 cruise 15 at full throtle accel
  3. D

    why wont my nissan pulsar rev over 4000rpm?

    plus its blowing blue and black smoke.....dont know why,any ideas?
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