Cobb AP2 Dyno?

Discussion in 'Modifications & DIY how-to' started by Trancetto, Apr 2, 2009.

  1. Trancetto

    Trancetto Active Member

    Has anyone used the AP2 dyno application? I was just wondering, how accurate is the dyno on the AP2? Did anyone ever compared the dyno from ap to an actual dyno?
     
  2. SonicBoom

    SonicBoom Active Member

    From what I've heard from users on IWSTI... the results are not even close to accurate. And vary widely between users with similar setups..
     
  3. Doug@DBW Motorsports

    Doug@DBW Motorsports Active Member

    Its actually fairly accurate if you get the curb weight with driver correct and have it on a level road.
     
  4. Trancetto

    Trancetto Active Member

    I did a 3rd gear pull, my setup.

    Weight:3058
    Gear:3
    RPM:3000-5500
    I ran stage 1 with 91.

    Gave me like 210hp-215trq.

    Doug, i weight in at 190lbs.
    Car mods:cold air
    No weight reductions.

    Fill this out:

    Weight:
    Gear:
    RPM:

    What setup should i try tommorow to get best results?
     
  5. Sparta

    Sparta Active Member

    The car itself weighs atleast 3300 lbs
     
  6. Sparta

    Sparta Active Member

    When I was stage 1 and got dyno'd at batlground it was 200/201
     
  7. Trancetto

    Trancetto Active Member

    So how much does a 2002 wrx weight in exactly? I need exact specs for best results.
     
  8. longfury

    longfury Active Member

    3400lbs with you, fuel and anything else you have in the car would be pretty close.
     
  9. Trancetto

    Trancetto Active Member

    okey thanks. ill give it another go tommorow. ill post up the results.
     
  10. Mike@TTR

    Mike@TTR Active Member

    Make sure it is a nice level road as Doug mentioned. Try to get it from 2000 rpm to 6800.
     
  11. Trancetto

    Trancetto Active Member

    Ill do another test Monday morning on my way to work. 2nd gear getting on high way. This way i wont brake any laws, unless its illegal to redline your car, or accelerate too fast.
     
  12. Trancetto

    Trancetto Active Member

    I just came back from work.

    Setup:
    Stage 1 map from cobb
    2nd gear
    RPM 2500-6500
    weight:3405

    Results:230-240hp 230-240trq. Sounds to good to be true.
     
  13. Doug@DBW Motorsports

    Doug@DBW Motorsports Active Member

    Your car is proabably around 3250 with you in it. Make sure the road is flat as the dyno uses vehicle accel to calculate the power. Also if your tire size is off it will make it read wrong. I would dyno in 3rd.

    Like dyno's in the real world its always good to get a baseline. So keeping the same settings and using the same road should give you repeatable results if you add mods.
     
  14. Trancetto

    Trancetto Active Member

    Ill try this setup tomorow:

    Setup:
    Stage 1 map from cobb
    3rd gear
    RPM 2500-6500
    weight:3250
    Wheels and tires are:17x7.5rpf1s with i beleive 225s. Sorry i forgot what size tires im running, lol.
     
  15. Trancetto

    Trancetto Active Member

    Just came back from work and did another test.

    All info on the car.

    02 wrx 125k
    CAI
    Sti catback
    greddy BOV(dont ask) :pssh:
    Tire/wheels:rpf1s with 225/45/17 tires
    Stage 1 from Cobb Ap2

    Dyno setup:
    Weight:3205
    Gear:3rd
    rpm:2500-6500

    Results:
    228hp @ 5154rpm
    258tq @ 3759

    The road i used for the test is straight as it gets, it is leveled as it gets. If the results are anywhere near the real results, id be happy.
     
  16. yerrow

    yerrow Active Member

    That looks close maybe a bit high in torque
     
  17. Trancetto

    Trancetto Active Member

    Same thing i thought. Ill just do another test once i finish my setup and take the car for a dyno.
     

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