SHO Shop UDP Belts

Discussion in 'Engine, Intake, Exhaust and Drive Line' started by 9091SHOs, Oct 7, 2019.

  1. 9091SHOs

    9091SHOs New Member

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    Does anyone happen to remember what the belt sizes are for use with the SHO Shop 3 piece UDPs

    Thanks
     
  2. Irish Pride

    Irish Pride Irish Inside Staff Member Super Moderators

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    Belts i use are Gates K060427 21mm x 1105mm, and K040490 14mm x 1255mm but I have the 4 piece Underdrive kit so you will probably need to go slightly larger to account for your stock crank pulley. This should give you a good starting point though.
     
  3. 9091SHOs

    9091SHOs New Member

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    Nice, thanks IP!!
     
  4. TimboSHO

    TimboSHO Novice

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    I have the 3 piece set and I use K040510 and K060455
     
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  5. 9091SHOs

    9091SHOs New Member

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    Thanks Timbo !
     
  6. zak

    zak SHO Member

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    This is a great topic, as this data is hard to find. The 94-95 SHOshop 3 piece UDP's were different and required different belt sizes. I have tomorrow off, will check the belt numbers (have them off the car at the moment).

    Which year car do you have? 1990, 1991? Both?

    If you run the stock alternator belt the tensioner pulley can interfere with the battery/battery tray, saw more than one "machined" battery ruin an open track or autocross day.
     
  7. 9091SHOs

    9091SHOs New Member

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    I do have both a 90 and a 91+. The 90 is the one in question. It has the 3-piece SHOShop UDPs. It is a 3.2 swapped car and I have had the UDP's on for a long time without any issues. It does use the 4-rib belt associated with the PS for MTX cars.
     

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