completely removing hicas

Discussion in 'Technical' started by Mitch, Apr 8, 2014.

  1. Mitch

    Mitch Has one gear: GO

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    I've got the lockout bar installed, but want to get rid of the solenoid and all hoses.
    I've read the tt pump mod tech article, but it looks like this all chocolates fluid to the rear of the vehicle?
    If I run a na pump and reservoir, will I be able to use the stock tt hp line to the rack and return line? Or will I need na parts or even a na rack?
     
  2. 90TTZ

    90TTZ Back From The Dead

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    Just did this mod for a client of mine Mitch. Yes it will work exactly as you have stated, just be advised the NA Pump bracket and suction hose is not interchangeable with the TT items. I've done the TT Pump mod and used an NA reservoir on mine.
     
  3. Mitch

    Mitch Has one gear: GO

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    Just realized I wrote chocolates instead of circulates. Perils of using a tablet with swype I guess.

    So ill need:
    1- na pump and bracket to fit to engine block.
    2- na suction hose (low pressure from reservoir to pump inlet)
    3- na ps reservoir
    4- use existing tt hp hose from pump outlet to rack (compatible with na pump)
    5- use existing return lines from rack to na reservoir

    Sound about right?
     
  4. 90TTZ

    90TTZ Back From The Dead

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    Spot on :)
     
  5. JT

    JT Track Addict

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    Yep, and also you'll need a na 3 rib belt to fit the 3 rib pulley on the na p/s pump, the TT one is 4 rib and won't work.
     
  6. WhiteNight

    WhiteNight Littering and...

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    You can just loop the rear feed line back to the res. Don't need to worry about swapping to an NA pump or devaining if you want.
     
  7. Shane001

    Shane001 Well-Known Member

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  8. Mitch

    Mitch Has one gear: GO

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    I'm currently using the elimination fitting, but after a better option.
    Any foreseeable issues running a 3pk belt on a 4pk crank pulley? Skipping off, Premature wear etc?
    Would the tt pulley fit, or need modifying?
     
  9. Mitch

    Mitch Has one gear: GO

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    Looking at the drawings on courtesy parts, the 90-93 turbo uses a different part. The na and 93+ models use the same pulley.
    Would be interesting to see them side by side
     
  10. Fists

    Fists Well-Known Member

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    All super HICAS cars should use the same pump (and pulley) as all NAs I'm pretty sure.

    I've got an NA engine with UR crank and power steering pulleys and they seem to be misaligned so might need some work. I'm not sure how long its been running like this or what the cause is but I'm guessing just the mounting position of the NA pump is a bit different
     

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