E36 manual steering?

Thread in 'Technical Questions' started by DoriDave, Jul 7, 2013.

  1. DoriDave

    DoriDave ~~Sore-Arse~~

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    Just wondering if anyone is running their BMWs without power steering? I'm tempted to give it a go as my pump is definitely on its last legs! Gonna be running 205 or 215's on the front.

    Thoughts?
     
  2. superclarkey

    superclarkey DORITECH MOTORSPORT

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    I've ran a power steering rack without the lines on my e30.. wasn't much fun tbh. if your going to go non-power steering you really need to get a rack that is up for it, or run fuck loads of camber and caster to help you steer it :)

    You can drift with it like that but its not ideal.
     
  3. DoriDave

    DoriDave ~~Sore-Arse~~

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    I was just thinking about how much castor would be needed, is the standard setup castor adjustable? Haven't really had a proper look at it. Just trying to eliminate problems area's cheaply/for free :-D

    Would running a Z3 rack unassisted help?
     
  4. DtheBUK

    DtheBUK Active Member

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    A few people on tramp drift rave about de powering the pas rack. Apparently you can get quick self centre as the fluid slows the rack down. I don't really know.

    I have driven mine without pas and it was quite the work out.

    Castor is fairly pricey on Beemers unless you go down some cheap/homemade routes. You can go for m3 offset bushes and/or m3 top mounts, castor adjustable top mounts or slot the top mount mounting holes. Will probably need some reinforcing though.
     
  5. DoriDave

    DoriDave ~~Sore-Arse~~

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    Cheers chap, I'll get myself over to trampdrift and have a read.
    Must say I'm seriously considering doing it :-D

    Only one way to find out!
     
  6. Stavros

    Stavros Active Member

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    You get a LOT more self centring if you de-power a rack, and if you do it properly by removing the seals it's not really heavier than a non power rack.

    I ran a de-powered rack on my 5 and without even removing the seals I much preferred it. Heavy as fuck at very low speed, but much better overall, more precise feeling too.
     
  7. superclarkey

    superclarkey DORITECH MOTORSPORT

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    I would just stick with power steering lol..
     
  8. DoriDave

    DoriDave ~~Sore-Arse~~

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    Cheers guys, I think I've got a spare rack somewhere, will dig it out and see what's what. Not really bothered about it being heavy at slow speeds.
     
  9. superclarkey

    superclarkey DORITECH MOTORSPORT

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    Another thing to bear inmind is non power steering racks are higher ratio, so the reason it does work is because you have more leverage.

    Also the fluid lubricates the rack, so you have to do something about that/
     
  10. Stavros

    Stavros Active Member

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    All mx5 one make race cars etc run de-powered racks, expect they just stuff grease in em like any manual rack, never looked tbh.

    If you want to find out about the best ways, prob best to google mx5 de powered rack conversions and its so common and proven to be reliable even in endurance racing etc.
    A pas rack is a pas rack when it comes down to it, so the guides will be perfectly suitable for advice
     
  11. superclarkey

    superclarkey DORITECH MOTORSPORT

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    What's the ratio of the mx5 rack? Weight of the car will also make a huge difference :-)

    We arnt talking about racing, drifting :p lol
     
  12. DoriDave

    DoriDave ~~Sore-Arse~~

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    I did wonder about lubrication, but wouldn't packing it with grease stiffen it up? Obviously it needs something in there for the long term. I did run a Mk2 Golf with a de-powered rack about 12 years ago with no problems, but that was with skinny 185's on the front.
     
  13. Stavros

    Stavros Active Member

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    You're going to keep replying until everyone just gives up and totally agrees with you aren't you lol
     
  14. hoagy5

    hoagy5 Member

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    What happens if you use thinner power steering fluid or modified the pressure in the pump? (or both). Had a look around the internet and can't find anything about it, but I have been wondering. You would think the seals and pump would be able to cope with thicker or thinner oils for a while at least? Would it make it lighter or quicker?
     
  15. thuythu679

    thuythu679 New Member

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  16. DoriDave

    DoriDave ~~Sore-Arse~~

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    Yeah, I thought that too :p Get the fuck off of my thread!
     
  17. superclarkey

    superclarkey DORITECH MOTORSPORT

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    I was adopting your debate tactics, short of showing my cock to win the argument lol
     
  18. DoriDave

    DoriDave ~~Sore-Arse~~

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    I should imagine yours is spotless and perfectly groomed!
     
  19. rob0r

    rob0r Member

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    I stripped down an E36 rack recently, cutting as many seals out as possible and reassembled it with loads of grease. I'm pleased with the results and what I'm left with is nothing different compared to a normal manual rack. It's obviously heavy at low speed compared to a PAS rack but out drifting it's great. I did this to save money/hassle when converting my E30 to an E36 rack. It previously had a de-powered but standard E30 PAS rack so it was a natural choice.

    EDIT - Just to add, I probably wouldn't bother if I had an E36 with perfectly functioning PAS.
     
  20. DoriDave

    DoriDave ~~Sore-Arse~~

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    Thats why I first started thinking about it, pipes are leaking and the pump is dying. I'm gonna bin it all methinks.
     

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