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Thread: Pinion Angle

  1. #1
    Senior Member wickedcobra's Avatar
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    Pinion Angle

    What do you guys recommend my pinion angle to be set at. Im looking for a street/strip combo thats best. Im putting in new upper control arms and would like it set it up right.

  2. #2
    Administrator BurnTire's Avatar
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    Quote Originally Posted by wickedcobra View Post
    What do you guys recommend my pinion angle to be set at. Im looking for a street/strip combo thats best. Im putting in new upper control arms and would like it set it up right.
    Bushing type?
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  3. #3
    Senior Member Ruckus46gt's Avatar
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    -3 to -3.5 normally works for most. Have it set with you in the car also or have someone sit in it that is about the same weight as you.

  4. #4
    Administrator BurnTire's Avatar
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  5. #5
    Senior Member wickedcobra's Avatar
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    LCA are Mega bite jr with urethane bushings
    UCA are CHE with urethane at the car and solid at the diff housing

    Looks like 2.5 downward for me. Thanks guys!

  6. #6
    Senior Member Ruckus46gt's Avatar
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    Give the company's also a call cause i know steeda and hpm both said 3 to 3.5 for mine. I had a guy named dan carlson who was a steeda enginer tweak the suspension and it was -3.5. typically the more negative the angle the softer the hit to the tires. I know bmr, umi, etc for fbodys also recommened a neg 3

  7. #7
    Administrator BurnTire's Avatar
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    Quote Originally Posted by Ruckus46gt View Post
    Give the company's also a call cause i know steeda and hpm both said 3 to 3.5 for mine. I had a guy named dan carlson who was a steeda enginer tweak the suspension and it was -3.5. typically the more negative the angle the softer the hit to the tires. I know bmr, umi, etc for fbodys also recommened a neg 3
    You set a greater angle with softer bushing because as the axle winds up it drives the angle closer to zero due to bushing deflection.

    The reason solid bushing cars run less of an angle is because there is no flex.

    Less angle = a more efficient drivetrain.
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  8. #8
    Senior Member Ruckus46gt's Avatar
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    Quote Originally Posted by BurnTire View Post
    You set a greater angle with softer bushing because as the axle winds up it drives the angle closer to zero due to bushing deflection.

    The reason solid bushing cars run less of an angle is because there is no flex.

    Less angle = a more efficient drivetrain.
    there is a lot more to it then that...what about weight, how soft the rear springs are( more squat...more neg pinion angle needed). You are correcte though sperical bushings can be dialed in with less neg pinion angle.

    I know you gotta try proving you know everything. All i'm saying is give the company's a call and talk to them, see what they say, see which direction they steer you in.

  9. #9
    Administrator BurnTire's Avatar
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    Quote Originally Posted by Ruckus46gt View Post
    there is a lot more to it then that...what about weight, how soft the rear springs are( more squat...more neg pinion angle needed). You are correcte though sperical bushings can be dialed in with less neg pinion angle.

    I know you gotta try proving you know everything. All i'm saying is give the company's a call and talk to them, see what they say, see which direction they steer you in.
    LOL Ruckus is at it again.

    I provided info straight from Baseline Suspensions Web site that contradicts your expert opinion.
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    2004 Cobra, Whipple ,TH-400
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  10. #10
    Administrator BurnTire's Avatar
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    Quote Originally Posted by wickedcobra View Post
    LCA are Mega bite jr with urethane bushings
    UCA are CHE with urethane at the car and solid at the diff housing

    Looks like 2.5 downward for me. Thanks guys!
    -2.5 to -3 will work fine for that setup.
    Sold
    2004 Cobra, Whipple ,TH-400
    Burning Corn
    9.97 - 135.5

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