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Strut brace

Discussion in 'Z3 Roadster & Coupé' started by Ashbandicoot, Nov 24, 2014.

  1. Ashbandicoot

    Ashbandicoot Passed Away, July 27 2015
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    Has anyone got an aluminium Wiechers sport strut brace fitted? (pic below)

    I'm just curious whether there is any downside to the double tube design vs a solid bar..

    [​IMG]

    cheers

    Ash
     
  2. Aceman

    Aceman Moderator
    British Zeds 3rd Party Trader

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    Has to be better than the single tube ones like I had fitted to my last zed;

    [​IMG]

    I have a Strongstrut on my ///M which if your budget will stretch are regarded as the best.
     
  3. Ashbandicoot

    Ashbandicoot Passed Away, July 27 2015
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    @Aceman

    Budget won't stretch that far unfortunately. I would like an e-tech bar but they appear to only be available on eBay from time to time

    Ash
     
  4. pina4greg

    pina4greg Dedicated Member
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    how much difference do they make?
     
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  5. Ashbandicoot

    Ashbandicoot Passed Away, July 27 2015
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  6. oldcarman

    oldcarman Zorg Guru (V)
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    I see lots advertised for the 6 cyl but non for the 4cyl. Or don't they need one ? JIM.
     
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  7. GazHyde

    GazHyde The Gaz Monkey
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    I will give you my own personal experience of strut braces and the need for them...

    When I bought my first Z3 5 years ago, I joined a forum and got reading up on things that bothered me about my Zed. One of the things I things I found out matched the symptoms of something I noticed - scuttle shake and general waywardness in corners. So, armed with my new found knowledge and plenty of encouragement when I posted up my symptoms, I bought and fitted one.

    Well that was a revelation because it did cure most of the issues, and the car was tighter in the corners and less 'wobbly' in general. About 6 months later my insurance was due and I struggled to find one easily that accepted it as a modification. It was also booked in for an inspection II service, so I asked the garage to take it off an put it in the boot for now.

    The car was serviced and I was told it needed a new front shock which was weeping, a lower control joint and another bush I can't remember. As I drove home that evening I was amazed to find the car drove better than it ever had, including after fitting the strut brace initially. So I learnt an important lesson that day, that before looking to improve your car you should check some of the basic things first. All I had done was mask a a serious issue.

    I'm not saying that strut braces don't work, just that you should make sure that there isn't another issue lurking which makes you think you need one ;)

    That is all. Rant over!
     
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  8. hard top

    hard top Zorg Expert (I)
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    Yep and if you get side swiped, you loose both sides of the front of the car in one go.
     
  9. oldcarman

    oldcarman Zorg Guru (V)
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    Not a rant in my book, makes a lot of sense to insure all is well with the suspension and maybe then go for the bar if you still feel it needs support. I can see where just putting the support in would mask unattended to problems and give a false sense of security. JIM
     
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  10. vintage42

    vintage42 Dedicated Member
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    Their need is the same as a 6. But the throttle body prevents most bars from going straight across over the engine. So all the 4-cyl bars are bent in a bow shape that goes behind the throttle body. They look as limber as a crossbow, being arched in two dimensions:
    http://www.horsepowerfreaks.com/cart/227218
    http://www.cosmoracing.com/productinfo.asp?cid=241&pid=1276
    I had Strong Strut machine the underside of their 6-bar to fit my 4:
    http://i49.photobucket.com/albums/f280/vintagefortytwo/BMW Z3 Related/Strut Bar/SS192_zps992d7f62.jpg
     

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  11. Stormy_be

    Stormy_be Zorg Guru (I)
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    I do agree on this.
    First have a good check that all the rest is ok.
    Nevertheless I do think that when, after rectifying the issues you had, you would again add the brace, it would make the car even better handling in corners.

    I have the wiechers metal strut brace (also 2 tubes) and it fits perfectly on my 2.8.

    Regards, Koen
     
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  12. GazHyde

    GazHyde The Gaz Monkey
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    Totally agree with you, and I will get another one fitted at some stage in the future.
     
  13. oldcarman

    oldcarman Zorg Guru (V)
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    I'd still like to hear from the 1.9 people about whether the expense is warranted. JIM
     
  14. Ashbandicoot

    Ashbandicoot Passed Away, July 27 2015
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    I am fairly sure that there aren't any issues underlying, I got a mechanic who does work in his spare time to fit new front dampeners and he usually points out anything past its best.

    Jim, If you are taking the Z out for some spirited driving then I think you would benefit from a strut. Probably best get a pair of these first though

    [​IMG]

    Ash
     
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  15. GazHyde

    GazHyde The Gaz Monkey
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    It was just a general rant. It was more for new owners finding this thread wondering whether a brace will fix their 15 year old car from handling badly.
     
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  16. zedonist

    zedonist Guest

    Jim,

    I have one fitted, it is the weichers, I bought it from orangetuning.de, very good company in Germsny, friendly and always willing to talk on items.

    Right, first things first, make sure your suspension and all ball joints are within normal parameters these bars can mask problems, so sort these before fitting them.

    Second, scuttle shake, the fitting of these ties the front end together and reduces the scuttle shake, ideally you really need a rear brace, on the 1.9 I fitted the chrome roll hoops which were joined together, I did this before fitting the front strut brace and this really removed the scuttle shake. I removed these and out in oem roll bars, scuttle shake returned, fitting of front strut brace reduced the effect, stiffer ARB's reduced it further.

    Hope this helps Jim

    Rich
     
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  17. oldcarman

    oldcarman Zorg Guru (V)
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    The car just went through our vehicle safety where everything suspension wise is checked to make sure everything is correct with no wear soi'm confident that all's well under the car. My friend knew I wanted him to pay particular attention to all the bushes, etc and all I needed were new tires and a brake light bulb. Thanks for the info. JIM
     
  18. oldcarman

    oldcarman Zorg Guru (V)
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    I'd love one, over here we have snowmobiles, JIM
     
  19. t-tony

    t-tony Zorg Expert (I)
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    And SNOW.
     
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  20. vintage42

    vintage42 Dedicated Member
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    There is no difference in warranting between a 4 and a 6. The strut bar stiffens both equally. There is a small reduction in cowl shake over railroad tracks, etc. As for handling, there is no difference for me because I am a gentle driver. For a bar to improve handling, enough cornering stress must be imposed to try to bend the top of a strut tower outward. I think only tracked cars see that.
     
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