Mains and Rods Torque Specs

Discussion in 'Stage II Tech' started by dereklola, Feb 5, 2017.

  1. dereklola

    dereklola
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  2. dank GN

    dank GN
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    always something

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    I believe the vertical main bolts are tourqued to 100ft/lbs the horizontal bolts are right around 60ft/lbs . On the rods I believe to proper way to do it is with a rod bolt stretch gauge . So what ever it would take to achieve the proper bolt stretch . Agian these are just off the top of my head and may be different from someone else specs .
     
  3. dereklola

    dereklola
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    Thanks Dank. I think I'm right in saying the horizontal bolts are on #1 and #4 Mains
    The ones I'm asking about are the angled 7/16" ones on #2 and #3. Pic from the other post repeated below.
    Thanks anyone.

    V6 mains rods 2017.jpg
     
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  4. dank GN

    dank GN
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    always something

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    Bad ass bro . If I could find a block I have all the goods to fill it and have one high reving motor
     
  5. GTP_ARGO

    GTP_ARGO
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    I think I went through about 2000 posts to find these.
    main studs 95-100
    splayed mains 50-60
    side bolts 60
    head bolts 80
    rod bolt torque to get stretch?
    SPS carr 3/8? 65
    SPS wmc7 3/8? 75
    SPS 7/16 80-85
    Feel free to correct or add more info.
     
  6. dereklola

    dereklola
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    Argo - many thanks - appreciate it.
    How's your car going? Derek
     
  7. GTP_ARGO

    GTP_ARGO
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    Last event of 2015 we had a valve spring break (BMS triples?). Got that all taken care of for 2016 and engine and car were doing great for a couple events. Season ended when the engine/gearbox adapter cracked in the worst place to try a weld repair. Adapter also has suspension pickups. I have been in contact with Argo and Royale folks and some others but no luck finding one or patterns. We may have to do a scan and pattern, have cast and machined. On back burner now with formula car season soon.
     
  8. blue-t

    blue-t
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    dont forget to pull that pilot bearing if going auto
     
  9. dereklola

    dereklola
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    Auto in a 'real' race car?
    But thx for trying to be helpful.
     

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