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BMW 3-Series (E90 E92) Forum
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racing dynamics engine strut brace
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02-05-2007, 11:54 PM | #2 |
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ehh... haha already have the oem one
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02-06-2007, 11:22 AM | #7 | |
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A poster had problems with dash creaks. His SA tried everything and the OEM strut bar was suggested and installed after which the problem was solved. So obviously the bar does offer some degree of strenghtening, enough to quell the poster's dash creak issue which, to me, sounds like chassis flex. http://www.e90post.com/forums/showth...ghlight=creaks I can imagine the more robust looking RD bar to exact even more effect on rigidity, but it looks like a PITA everytime you need to change or top up oil.
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02-06-2007, 12:37 PM | #9 |
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why do the aftermarket ones cover the oil top?
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02-06-2007, 01:13 PM | #10 |
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i think its also suggested that you remove the oem one if your doing oil change... it doesnt get in the way as much as the RD one but it still does to some extent.
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02-06-2007, 01:16 PM | #11 |
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Not too sure about that either...I think the OEM bar is curved for that very reason (at the cost of maximum function/strength)
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02-06-2007, 05:45 PM | #12 |
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that's damn expensive, i'm sure the quality is good, but damn
i'll be waiting for a cf one
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02-07-2007, 02:42 PM | #13 |
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Does that mean that anytime oil needs to be added, the strut must be removed by the dealer? I bet they'd charge an hour of labor for that..geez.
________ NEW JERSEY DISPENSARIES Last edited by HappyG; 05-17-2011 at 02:38 AM.. |
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02-09-2007, 02:37 PM | #14 | |
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for those of you not familiar with the background of racing dynamics. there's two: (1) racing dyamics based in italy (sometimes branded as "rd sport" in north america), and (2) racing dynamics based in the US (electrodyne) that at one time had a relationship with racing dynamics italy, but now sells their own manufactured products under the racing dynamics name, and a lot of times are direct copies of the real thing.
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02-09-2007, 03:04 PM | #15 | |
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. . . the OEM accessory curves away from the oil cap. I have changed the oil without removing the strut bar. No problem. If you're worried about spilling oil on it, just use a funnel. After looking at the different strut bars, I still like the OEM accessory the best in terms of looks and function. It's simple, light, and of good quality. However, as ADHD has pointed out, it apparently does not fit the 335i. |
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03-04-2007, 11:12 AM | #16 |
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You have to understand that it was machined on a c.n.c machining center out of solid billet aluminum, I am guessing out 6061-t6. The real reason it cost so much is because of all the cutouts in it (triangles) that takes more time. It also doesn't do a lot for stiffness compared to one that is solid. I am guessing they did this to save weight.
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03-04-2007, 08:28 PM | #19 |
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Given that the OEM bar and RD bar have similar section perimeter the modulus of the steel bar is 3x the aluminum so the OEM bar is going to be 3x stiffer. The only thing better is carbon fiber due to space limitations.
Last edited by Orb; 03-05-2007 at 02:25 AM.. |
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03-04-2007, 08:34 PM | #20 |
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$350.....
type in "E90 Intro" at checkout if you're buying through their website
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