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Prodrive Impreza 555 Group A General Discussion

Discussion in 'Prodrive Impreza 555 Group A' started by Burnsie, May 8, 2018.

  1. Burnsie

    Burnsie Moderator

    Location:
    North west
    I think 2.2 turns to lock. The GpA and WRC cars also use lock stops (item 5) to control the amount of lock required depending on wheel choice for example tarmac, Gravel or snow. This also helped prevent the driveshafts from popping out or snapping under full lock and hard acceleration in tight turns :nerd:

    A390140A-5322-4EE3-9649-91EFA0284D77.png
     
  2. L555BAE

    L555BAE V-Limited Member

    So they used a 13:1 steering rack then?
    Is there any way to find a list of road vehicles that were fitted with the 13:1 racks?

    I didn’t know that about the locks but after saying it, it makes perfect sense.
     
  3. asperformance

    asperformance Site Supporter

    Location:
    oop north
    GrpA cars didn't need a 'quick rack' anyhows as they were driven sideways mostly.......:giggle:
     
  4. James Lowry

    James Lowry V-Limited Member

    Location:
    Ireland
    I don't think so as i tried to look into this myself before. Part number for GC8 quickrack is 34110FA092

    A STi RA is 13:1 and a WRX is 15:1 which isn't a lot in turns of number of turns!
     
  5. type-ra

    type-ra Administrator

    Location:
    West Yorkshire
    The only way to do it would be to sort the cars by optioned quick rack & add them up. Not too big a job but a little bit time consuming. The only iffy ones would be the first STi RAs:thumb

    I could probaby do it when I get chance.
     
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  6. Burnsie

    Burnsie Moderator

    Location:
    North west
    GpA rack is different to road car, I’ll find out more :nerd:
     
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  7. Burnsie

    Burnsie Moderator

    Location:
    North west
    The early GpA racks were 2:2 same as 13:1 and the early WRC racks were quicker not sure exactly how much though, I think maybe 12:1 or 2:0. Both were made by STI as they use a Subaru seal kit. Later racks S7 onwards were made by Visteon.

    4829E320-58B4-46FA-AE37-D34D8F2A84AE.jpeg

    Photo taken from DL Motorsport parts website, one way of telling it’s a GpA / WRC rack is that the fluid inlets from the ps tank angle upwards.

    ED98220C-F445-4697-A0BD-5989C0929400.jpeg

    Photo of mine before I had it refurbished ;)

    BA4032E1-0524-4F2C-82C5-874F5156A49C.jpeg

    They are also numbered, here is a photo of mine, engraved with 97 02 an early WRC rack so I think it may have been originally used on P982YWL which then became P200ALL which was WRC car 97.02 :nerd:
     
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  8. L555BAE

    L555BAE V-Limited Member

    It was more to see what cars to go looking for one from or to fact check a seller when asking what car a rack came from.

    Really good info!
     
  9. Burnsie

    Burnsie Moderator

    Location:
    North west
    Lol apologies I get a bit carried away if you haven’t already noticed :think:
     
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  10. type-ra

    type-ra Administrator

    Location:
    West Yorkshire
    In that case I'd just need the VIN of the car:thumb
     
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