Stock Problems/Issues Discussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Cooper (R50), Cabrio (R52), and Cooper S (R53) MINIs.

Power Steering Delete?

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Old Jun 22, 2011 | 12:13 AM
  #1  
minsanity's Avatar
minsanity
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Power Steering Delete?

A lot of e30ers have resorted to deleting their PS systems using something like this:
(old bad link deleted, so sorry guys)
here's one from another site:
http://www.r3vlimited.com/board/showthread.php?t=130389

Looks a lot cleaner than having an exposed loop most would do.

Has anyone experimented w/ something similar on the R50/53? This could be a simpler/cheaper route to solving all the PS related problems the 1st Gen has. Advantages are said to include weight shaving & better road/steering feel on e30s.

Feedback, anyone?
 

Last edited by minsanity; Jun 22, 2011 at 03:43 PM. Reason: 1st link has trojan
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Old Jun 22, 2011 | 02:45 AM
  #2  
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I'm not sure why you would delete it with an electric pump? No parasitic drag...
 
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Old Jun 22, 2011 | 07:38 AM
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I've driven 1 with failed PS. Drivable, but far from ideal. Was just wondering if anything like this $35 delete kit could be a possible alternative to an expensive PS pump replacement w/o risking rack damage. Since our system is electro-hydraulic, not belt driven, having the same expectations as those in e30s would be a long shot.
Anyone w/ empirical info? Please chime in. Thanks.
 
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Old Jun 22, 2011 | 09:12 AM
  #4  
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i don't know, but every time i switch from my mini (main driver) to my BMW, the BMW steering feels very heavy and the BMW feels sllllllllllllow. love them both though.
 
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Old Jun 22, 2011 | 10:35 AM
  #5  
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I'd be for a delete option for when mine goes out. My favorite sports cars have always been manual steering.

I suppose when it finally does go fizz I'll look into it if noone else has put anything out there.
 
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Old Jun 22, 2011 | 02:55 PM
  #6  
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Be careful with the link. Was on the site when my security software caught a trojan.

Kevin
 
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Old Jun 22, 2011 | 03:36 PM
  #7  
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Originally Posted by firenewt
Be careful with the link. Was on the site when my security software caught a trojan.

Kevin
Dang, I think I may have gotten it there also!
 
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Old Jun 22, 2011 | 03:37 PM
  #8  
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Thanks for the warning, Kevin. Here's the same product from another site:
http://www.r3vlimited.com/board/showthread.php?t=130389
 
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Old Jun 23, 2011 | 01:20 AM
  #9  
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From: CT
Why this may not be a good idea

-The BMW has less weight over the front wheels making the steering lighter
-the bmw may have a steering geometry that better lends itself to a manual rack (the whole front geometry on the mini is kinda sucky to begin with). Caster and scrub radius should be looked at and compared. I would not suggest doing the running this with wheels that have a low offset number.
-the bmw may have beefier steering columns with beefier bearings supporting them. The steering columns and associated bearing in our car are not that good. The U-joint seen on that BMW is far more robust looking then the one on our car

Also:

I'm not sure why you would delete it with an electric pump? No parasitic drag...
We do have a parasitic drag on our car, the only difference is that it comes as extra work to turn the alternator (to power the huge electric motor) rather than a PS pump. So there is a gain to be had there.
 
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Old Jun 23, 2011 | 02:20 AM
  #10  
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1 point I'd really like to find out is how the ecu would react to this type of mod. The reason why newer cars are opting for electric PS pumps isn't only to eliminate parasitic drag, but also to allow variable ecu control over the steering.
 
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Old Jun 23, 2011 | 05:19 AM
  #11  
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Agree with some here that I would never consider driving my Mini without a PS pump. It's a great pump and when the car gets up to speed, the pump is hardly working, so you always still have that pure rack and pinion feeling.
The ECU plays no role in the operation of the PS pump. It's self contained as far as how hard it works. It's why it is used by some other race cars. So the ECU could car less about deleting it. Your arms will though. ;-)

And Charlie is right, there is no "free" work when it comes to using an electric pump over a belt driven one. The Alt works hard at low RPM, but when up to speed the pump draws quite a bit less.
 
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Old Jun 23, 2011 | 06:32 AM
  #12  
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Great to know the ecu has no hand in the PS.
Your expert advice, knowledge & input are greatly appreciated, Greg!
Really admire your work! Up to now, I'm still in awe at your MINI's evolution!
 
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Old Jun 23, 2011 | 03:38 PM
  #13  
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I am interested in manual steering. Would we need to alter the steering ratio? Is 2.4 turns lock to lock too quick for a manual rack?
 
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