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Thread: Firecat TR2 IBO - ABO

  1. #1
    kylebattell
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    Default Firecat TR2 IBO - ABO

    I recently purchased the Firecat TR2 and shoot 70lb draw weight, 29 1/2 inch draw length, a 300 Gold Tip and a 100 grain field point...I was curious what the expected ABO speed is considering the IBO is 335-345...I ask b/c i am getting a consistent 285-288 speed and was wondering if that is normal? Some possibilites may be the after market String and Cables ? My Axle to Axle is 32 3/4 instead of the 34 1/4 ?

    Any help is appreciated...

  2. #2
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    If your ATA is 2" off there is something major wrong. Decreasing the ATA around 1" can lead to limb problems with the CAT-Cams. The ATA measurement might be something mroe or less approximate but your ATA is way off.

    Did your shop sell you the bow with the ATA this way off? Get this straigthend out! Either the string is way short (which will rotate the cam forward) or the cables are way short (also will rotate the cam forward) or both are way off (will not rotate the cam). Anyway: THis has to be corrected!
    (2) Hoyt PCEXL

  3. #3
    kylebattell
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    Whoops ! My Axle to Axle is actually 32 3/4...so its a 1/2 inch...Sorry for the typo!

  4. #4
    kylebattell
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    This is the Firecat TR2 Axle Length: 32 1/4 so i'm a 1/2" off...

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    Okay. In this case it is within a range that is acceptable. You may want to try to minimize the difference between your ATA and the original specs.

    Have you finetuned your CAT-Cam? I do not believe that there is something like a 'sweet spot' but there might be something similar. A certain position where the cam rotation will lead to a maximum performance within its limits.
    (2) Hoyt PCEXL

  6. #6
    kylebattell
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    Would adjusting the "draw stop" potentially find the cams right spot ?

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    No. It might be necessary to do some cable or string twisting. This will change the Cam orientation and rotation.

    Quote Originally Posted by Spiker
    Twisting Cables:
    Retards Cam, Increases DL, Increases DW, Decreases ATA, Increases BH.

    Untwisting Cables:
    Advances Cam, Decreases DL, Decreases DW, Increases ATA, Decreases BH.

    Twisting String:
    Advances Cam, Decreases DL, Decreases DW, Decreases ATA, Increases BH.

    Untwisting String:
    Retards Cam, Increases DL, Increases DW, Increases ATA, Decreases BH.

    Tightening Limb Bolt:
    Advances Cam, Decreases DL, Increases DW, Increases ATA, Decreases BH.

    Loosening Limb Bolt:
    Retards Cam, Increases DL, Decreases DW, Decreases ATA, Increases BH.
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    For further information you can also go to www.archerytalk.com/vb/ and search for CAT cam tuning.
    (2) Hoyt PCEXL

  8. #8
    kylebattell
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    Thank you for your help

  9. #9
    Destroyer
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    Quote Originally Posted by kylebattell View Post
    ABO speed
    Whats ABO?

  10. #10
    Super Moderator bfisher's Avatar
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    Quote Originally Posted by Destroyer View Post
    Whats ABO?
    Thankyou for asking. You beat me to it. It's a term I have never heard before. And in 37 years I thought I had heard them all.

    Aaaaah, I'll bet he means AMO. The old speed rating back in the 80's and early 90's. If I remember right it was at 30", 60#, and shooting a 540 grain arrow (9 gr/lb).
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