dlm roof size

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  • lmdriver72
    Junior Member
    • Jul 2013
    • 17

    #1

    dlm roof size

    We're having an argument in our shop about the length of a dirt late model roof. There's a grey rule at our track about the length. I say shorter is better to let the air over down to the spoiler. others say longer to add downforce. Expert opinions?
  • JustAddDirt
    Senior Member
    • May 2007
    • 1893

    #2
    not an expert but.
    air from roof will never hit spoiler.
    especially with the nose down attitude of the late models now a days, roof is at same attitude as car, RF of roof lower than rest of roof, producing down force.
    I think there should be lifeguards in the genepool.

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