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Dyno results from today

Discussion in 'Engine/Tuning' started by Partyboy652, Aug 21, 2019.

  1. Partyboy652

    Partyboy652 Member Established Member

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    455whp 497wtq
    2.76 pulley I believe
    Jlt cai
    Bassani o/r x
    Magnapack catback
    Aluminum driveshaft

    Tuned by Travis at gearheads performance.
    It was also at least 96 or hotter out when the pulls were made.

    Does this sound about right? From what I’ve been seeing these numbers are in the area I was expecting.
     
  2. CobraBob

    CobraBob Authorized Vendor Premium Member Established Member

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    SAE? STD? Depending on the tune, those numbers are representative of your mods. Can you post the dyno sheet?
     
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  3. slo984now

    slo984now AKA 01yellerCobra Established Member

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    How much boost? How much timing?
     
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  4. me32

    me32 BEASTLY SHELBY GT500 TVS Established Member

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    Post the dyno sheet
     
  5. stangfreak

    stangfreak Well-Known Member Established Member

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    torque is up there
     
  6. NotoriousGT350

    NotoriousGT350 Lubbock Terminator Established Member

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    Sounds great! Mine did 465rwhp/496rwtq on just
    2.80 upper
    CAI
    Prochamber with Borla Stingers
     
  7. Partyboy652

    Partyboy652 Member Established Member

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    Attached Files:

  8. Partyboy652

    Partyboy652 Member Established Member

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    Yeah I just uploaded it
     
  9. slo984now

    slo984now AKA 01yellerCobra Established Member

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    Did they leave the A/F that lean?
     
  10. Partyboy652

    Partyboy652 Member Established Member

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    I don’t know. That’s not what my gauge says on my pillar. It usually says like 14.1 or so
     
  11. blownstang4.6

    blownstang4.6 Active Member Established Member

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    When you're idling or normal driving right? Not 14.1 when you're at WOT? Kind of a crappy graph to read the exact numbers, but your wot afr should be 11.5-11.8.
     
  12. Partyboy652

    Partyboy652 Member Established Member

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    I’m not sure if the gauge is reading accurately. It turns on and off intermittently so I’m not even relying on it
     
  13. Partyboy652

    Partyboy652 Member Established Member

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    Btw Travis told me my intercooler Pump was having trouble after lots of pulls so he told me to get it swapped ASAP. I’m assuming this is a common problem?
     
  14. CobraBob

    CobraBob Authorized Vendor Premium Member Established Member

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    Thanks for posting the dyno sheet. It would have been nice if they indicated whether the numbers were SAE or STD. You probably know that STD numbers will be higher than SAE.
     
  15. slo984now

    slo984now AKA 01yellerCobra Established Member

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    Yeah. It's a common issue with these cars. I would get the wideband fixed or replaced ASAP as well.
     
  16. c6zhombre

    c6zhombre E85 NutSwinger Established Member

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    455/497 sounds just fine. If those are STD corrected and you want a quick guesstimate at SAE....just multiply by .975 it should get a ballpark number (443/484 in this case). Or....you could drop by Gearheads and just ask them to print you out the dyno sheet with SAE clearly printed on it.

    Regarding air fuel.....how did they measure it on the dyno? Did they use a tail pipe sniffer and shove it in a tail pipe or did they lift the car up, find the bung on the mid pipe and screw in a true sensor? IIRC tail pipe sniffers will read leaner in a lot of cases. Maybe half a point.

    Regarding your wideband.....get it fixed ASAP. Make sure your in car gauge is good. This is the heartbeat of your monitoring ability while you are driving and it needs to be reliable and accurate. WOT and going too lean is a recipe for grenading the motor.....quickly spotting the wideband gauge might save you from beating on a leaned out motor that needs attention via new parts and/or a computer retune.

    Intercooler pump......diagnose and immediately replace if necessary.
     
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  17. Partyboy652

    Partyboy652 Member Established Member

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    I floored it tonight and my gauge was saying 12.1 consistently
     
  18. MG0h3

    MG0h3 Well-Known Member Premium Member Established Member

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    Little lean


    Sent from my iPhone using svtperformance.com
     
  19. slo984now

    slo984now AKA 01yellerCobra Established Member

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    That's too lean for my taste. I aim for 11.5 with my cars. I think 12 is asking for trouble personally.
     
  20. blownstang4.6

    blownstang4.6 Active Member Established Member

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    That's why your torque is so good because of the 12.1. I'd say 12.0 is fine if your tune isn't on the edge meaning a ton of timing stuffed in it or high Iat. If you see it creeping higher than 12.1 I'd get out of it. 11.7-11.8 is perfectly safe. 11.5 or lower is very safe.
     

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