8mm 11mm 14 mm BELTS?

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by moparchris440, Nov 9, 2018 at 7:45 PM.

  1. moparchris440

    moparchris440 Member

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    Ive run 14 mm belts on my Roots for years without problem currently I believe I'm near max efficiency for the RPM I run and I am looking for a little more power anywhere I can find it. Will the thinner belts make more power with less friction? I have heard stories of 50 hp???
     
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  2. Dave Koehler

    Dave Koehler Member

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    Gosh, I have been at this a while and I have never heard of a magic belt.
    Always willing to learn something new even if it is old.
     
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  3. nitrowannabe

    nitrowannabe Member

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    I know some of the N/TF guys like a narrow belt. That's a 6-71 60 degree at low overdrive. Dont know if the same applies to a14-71 or 18-71 HH.
     
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  4. TOL

    TOL Active Member

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    No. Use what is reliable.......
     
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  5. jay70cuda

    jay70cuda Member

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    I know 8mm belts don’t hold up well under peddling. Most break around 15-20 runs. I’ve seen some break around 8 runs. I’ve ran the same 14mm belt for 3 years. Still going strong.
     
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  6. Mike Canter

    Mike Canter Top Dragster

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    An 8 mm belt is meant to use less power. Never seen a problem with a 8 mm on a Roots. Get an average of 25 runs from them.
     
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  7. Big Steve

    Big Steve New Member

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    Im pretty new to running blower but the Star Racer 8mm belt on my TD has 35 runs on it, 2 step launch and ripping the throttle on top end and belt looks brand new
     
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  8. td1506

    td1506 Member

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    We have used the Star Racer belt for two years 8mm. New one each year better than 50 runs a year.
     
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