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Borla vs. Stock Exhaust Backpressure Test

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  • #1

    Borla vs. Stock Exhaust Backpressure Test

    This was done on a 96 WS6. I've been to the site before, but I think this is fairly new. The guy used a homemade manometer to test the exhaust gas pressure before the catalytic converter.

    http://www.ws6.com/mano2.htm

    Stock Exhaust: 7.5in Hg

    Borla: 3.5in Hg
    Joe K.
    '11 BMW 328i
    '10 Matrix S AWD
    Previously: '89 Plymouth Sundance Turbo, '98 Camaro V6, '96 Camaro Z28, '99 Camaro Z28, '04 Grand Prix GTP
    Tags: None
  • #2
    That's pretty interesting how he tested that. I wonder how exact his results are. Neat stuff non the less
    black 95 t/a, a4, beefed up tranny w/ higher stall converter, transgo shift kit, trans temp gauge, trans cooler, richmond 3.73's, loudmouth, hypertech programmer, 160 thermo, descreened maf, TB bypass and airfoil, trick flow intake elbow, underdrive pulleys, moroso cai, edelbrock panhard rod, bmr stb, slp sfc's, fiberglass firehawk hood, hawk pads, taylor wires, ngk plugs, royal purple fluids,...and hopefully more to come

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    • #3
      pretty cool
      1997 Camaro Z28 Pacesetter Long tubes, ORY-Pipe, Accel 30# Injectors, MSD Cap & Rotor, MSD Super Conductor Wires, NGK Irdium TR55IV Plugs, and Borla Catback. Madtuner Tune, SLP High/Low fan switch, NGK o2 sensors

      New Longblock at 110,947 and everything above.

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      • #4
        Maybe I'm blind, but I can't find anything on which plate he used? I'm currently using the 1 3/4" or 2 1/4" (been so long I can't remember) and wonder how that would do.
        94 Black T/A GT, Advanced Induction 355, 3200 stall, built 4L60E, Moser 9", Baer Brakes, Shooting for 11s...

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        • #5
          Why not go direct to a dyno test, also done on the same 96 WS6:

          http://www.ws6.com/mod-5.htm
          Fred

          381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motor

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