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Thread: Firebird 11-7

  1. #1
    Administrator BurnTire's Avatar
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    Firebird 11-7

    I am heading down to firebird tomorrow night.

    Doesn't look like they have any big events planned this weekend so hopefully I get get some runs in.

    Anyone else?
    Sold
    2004 Cobra, Whipple ,TH-400
    Burning Corn
    9.97 - 135.5

  2. #2
    Senior Member AZSonicSnake's Avatar
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    i'd love to, but after the last complete waste of time, nah... i'll pass. hope you nail those 1.3's though!!!

    Tuned By PSR TUNING
    11.07 @ 127.93
    My Autolog Profile

  3. #3
    Administrator BurnTire's Avatar
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    I got my MT Sportsman front tires so I can cruise down there on the slicks and skinnies. 10 gallons of VP 109 in the tank. I am ready to roll.
    Sold
    2004 Cobra, Whipple ,TH-400
    Burning Corn
    9.97 - 135.5

  4. #4
    Senior Member AZSonicSnake's Avatar
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    10 gallons? yikes! stay out of it, and you should not need so much gas! lol...

    Tuned By PSR TUNING
    11.07 @ 127.93
    My Autolog Profile

  5. #5
    Administrator BurnTire's Avatar
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    Quote Originally Posted by AZSonicSnake View Post
    10 gallons? yikes! stay out of it, and you should not need so much gas! lol...
    I was doing some tuning today so I burned some. Tuning on pump gas then running 100% race gas can cause some issues as the stoich ratings between race and pump fuel varies. VP 109 has a stoich of 13.65 and pump gas is 14.64. I have no idea what the winter oxygenated gas stoich rating is, but it burns leaner than the summer gas. I would guess around 14.2 based on my data logs and research.

    So long story short. If you tune on summer gas and go to 100% VP 109 your car will run leaner. By changing the stoich rating in the tune to match the race fuel will keep your A/F in check.

    My A/F was 12.0-12.3 on the race gas compared to 11.6-11.8 on winter gas with a can of torco.
    Sold
    2004 Cobra, Whipple ,TH-400
    Burning Corn
    9.97 - 135.5

  6. #6
    11.724@120.065 (1.839 60ft)

    "It doesn't matter how bad your car is on the Dyno-it's the clock at the end of the track that counts!"

  7. #7
    Senior Member Wharf Rat's Avatar
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    Put the DR's on this morning
    2012 GT500 543/533 11.7@120
    1995 5.0 minute or two per lap

  8. #8
    I'll be there for my first time out since I got back. My boss will be out with his GT 500.
    11.724@120.065 (1.839 60ft)

    "It doesn't matter how bad your car is on the Dyno-it's the clock at the end of the track that counts!"

  9. #9
    Quote Originally Posted by Wharf Rat View Post
    Put the DR's on this morning
    My M/Ts are a couple years old so I am sure they are pretty hard but there is still a lot of tread left on them so I am gonna use them until they wear down.
    11.724@120.065 (1.839 60ft)

    "It doesn't matter how bad your car is on the Dyno-it's the clock at the end of the track that counts!"

  10. #10
    Senior Member IMSHAKN's Avatar
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    Would go but I'm not too happy with Firebird at the moment. I want it to be a night where I'm sure there won't be some BS.
    ~Andrew

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