straight pipe no cat!!!! - FirebirdV6.com/CamaroV6.com Message Board

Announcement

Collapse
No announcement yet.

straight pipe no cat!!!!

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • straight pipe no cat!!!!

    Hey guys earlier I posted that I was gonna gut my cat and put it back on. I changed my mid and just put a piece of 2.5in. straight pipe in its place. It sounds pretty good especially in low RPM's and at idle. It feels like I gained some hp especially in teh Higher RPM range. Though, it feels I lost a lil TQ. Could this be accurate to do loss of back pressure, or is the TQ still there but jsut got added power?
    01\'Y87 Firebird:Gt1 cam,Vig.3000 stall
    AR stage 3 heads/intakes to be installed
    www.cardomain.com/id/firehawknwv
    www.vaperz.com
    PEWTER MAFIA/ Kristen's "PEWTER MAFIA KING"

  • #2
    Its your seat of the pants dyno. Moved the powerband up is all.
    -1999 Camaro Coupe 3800 Series II V6 A4 - SOLD<br />-1998 Pontiac Grand Prix GTP coupe

    Comment


    • #3
      Though, it feels I lost a lil TQ. Could this be accurate to do loss of back pressure, or is the TQ still there but jsut got added power?
      Reducing backpressure will never reduce HP or torque. However, reducing exhaust gas velocity certainly will.

      Since you have just replaced the cat with a straight pipe you haven't done anything to reduce exhaust gas velocity so your seat of the pants dyno is just off. You haven't lost power or torque.
      SLP CAI, K&N, Whisper Lid, 180* thermo, manual fan switch, 3.42 gears, Auburn Pro LSD, Wester\'s PCM Tuning, TSP Rumbler, High Flow Cat. Best Time: 9.909@71.58 (1/8 mile)

      Comment


      • #4
        Yeah, if anything it might of moved the torque in up the rpm range a little bit, where its less of a kick back into the seat kind of feeling.
        Black \'94 Trans Am A4- SLP CAI & Loudmouth<br />Red \'93 Firebird A4- Ram Air under the WS6 hood, !cat, exhaust.

        Comment


        • #5
          ok thanx for clearifying guys
          01\'Y87 Firebird:Gt1 cam,Vig.3000 stall
          AR stage 3 heads/intakes to be installed
          www.cardomain.com/id/firehawknwv
          www.vaperz.com
          PEWTER MAFIA/ Kristen's "PEWTER MAFIA KING"

          Comment

          Latest Topics

          Collapse

          FORUM SPONSORS

          Collapse
          Working...
          X