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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

    1,050
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    Joined Dec 19, 2005
    Detroit, Michigan
    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

    2K  1

    1994 Mitsubishi Evo
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  2. ist dwa

    ist dwa Proven Member

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

    b00stedtalon2 Proven Member

    1,050
    532
    Joined Dec 19, 2005
    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.
     

    2K  1

    1994 Mitsubishi Evo
    automatic · Lancer Evolution

    Street Build 4K  1

    1993 Eagle Talon TSi AWD
    9.585 @ 143.96 · 1G DSM
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    jed344 and 1990TSIAWDTALON like this.
  4. ThunderChild

    ThunderChild Supporting VIP

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

    Street Build 809  3

    1990 Plymouth Laser N/T
    fwd · manual · 1G DSM

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    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

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    fwd · manual · 2G DSM

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  5. b00st3d

    b00st3d Freelancer

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    Joined Jan 13, 2005
    Yukon, Oklahoma
    I'm in for one, maybe 2.
     

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    awd · automatic · 2G DSM

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    1998 Mitsubishi Eclipse GSX
    manual · 2G DSM

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    b00stedtalon2 likes this.
  6. GSXbooster

    GSXbooster Supporting Member

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    Joined Jun 3, 2003
    Centennial, Colorado
    Nice! I'd probably be interested in one that deletes the power steering pulley.
     

    Road Race Build 2K  8

    1995 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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    b00stedtalon2 likes this.
  7. Joshua Tadich

    Joshua Tadich Proven Member

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    Joined Jul 15, 2018
    Pittsburgh, Pennsylvania
    Did these ever get made for purchase? Any feedback on how they performed?
     

    Street Build 478  5

    1990 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  8. Dsm_daz

    Dsm_daz Probationary Member

    3
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    Joined Mar 31, 2018
    Bloomfield, New Jersey
    I’m running this on my 2gb 7bolt rn. What size belt are you running for it?
     

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    1997 Mitsubishi Eclipse GSX
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  9. xxNocturnalxx

    xxNocturnalxx Proven Member

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    Any update? Where to purchase? etc.
     

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  10. Vegas Smith

    Vegas Smith Previously Vegas smith

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    Houston, Texas
    The guy made a batch a while back ago. I have one and it's great. I think the seller is Daniel Mergenthaler of EvoSpec Performance.
     

    Street Build 4K  8

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  11. motomattx

    motomattx Proven Member

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    Wanting one.
     

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