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New billet underdrive water pump pulley

Posted by b00stedtalon2, Aug 14, 2019

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  1. b00stedtalon2

    b00stedtalon2 Proven Member

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    Testing this out for a friend who plans to put these in production for DSM folks. They'll be offered in two versions, one that deletes the power steering pulley and one that allows you to keep it. TI hardware included :)

    The main purpose of is this to slow down the water pump which is beneficial at high RPM. I'll be comparing water pressure and temperature between the underdrive pulley and stock this weekend.

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    Last edited: Aug 14, 2019

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  2. ist dwa

    ist dwa Proven Member

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    I'd be interested if it was not underdrive. Will he make a stock size option?
     
  3. b00stedtalon2

    b00stedtalon2 Proven Member

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    Detroit, Michigan
    He will only be making underdrive ones.

    The underdrive pulleys he's made for the Evo 7/8/9/X have shown to drop coolant pressure, better cooling time for the fluid in the radiator, and reduces cavitation to the pump from forcing coolant when being over spun.
     

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  4. ThunderChild

    ThunderChild Supporting VIP

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    More importantly, what is the underdrive ratio? And a stock option will be a good selling point
     

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  5. b00st3d

    b00st3d Freelancer

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    I'm in for one, maybe 2.
     

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  6. GSXbooster

    GSXbooster Proven Member

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    Nice! I'd probably be interested in one that deletes the power steering pulley.
     

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