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E36 Anti Roll Bar
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<blockquote data-quote="anxious" data-source="post: 284332" data-attributes="member: 193"><p>Here we go again!</p><p></p><p>The cost of upgrading the ARB+bushes to MTech is half of the costs of upgrading the Shocks/Springs.</p><p> </p><p>The Mtech ARB+ normal bushes should cost a little over RM1.6k.</p><p> </p><p>The Eibach/Bilstein combo with all the absorber mountingetc would cost almost RM4k.</p><p> </p><p>Therefore on paper the Mtech ARB upgrade looks attractive. Thats why I need to know whether anyone has done this on a stock suspension set up?</p><p> </p><p>I just came across this post:-</p><p> </p><p><em>"ARB are rated on thickness, which is expressed in either mm or inches (or fractions thereof). <strong>Watch out though as a few mm or 16th of an inch can double the stiffness of the bar.</strong> Reason is that stiffness increases as a fourth power of change in diameter ie you multiply the diameter 4 times to get the stiffness. Best to work it out in mm. eg a 22mm bar gives an end value of 234256 while a 26mm bar gives 456976 (26x26x26x26) basically nearly twice as stiff!"</em></p><p> </p><p>Therfore could uprating my present 24mm(F)/15mm(R) to MTech's 25.5mm(F)&18mm(R) have the desired effect of better handling on my stock suspension?</p></blockquote><p></p>
[QUOTE="anxious, post: 284332, member: 193"] Here we go again! The cost of upgrading the ARB+bushes to MTech is half of the costs of upgrading the Shocks/Springs. The Mtech ARB+ normal bushes should cost a little over RM1.6k. The Eibach/Bilstein combo with all the absorber mountingetc would cost almost RM4k. Therefore on paper the Mtech ARB upgrade looks attractive. Thats why I need to know whether anyone has done this on a stock suspension set up? I just came across this post:- [I]"ARB are rated on thickness, which is expressed in either mm or inches (or fractions thereof). [B]Watch out though as a few mm or 16th of an inch can double the stiffness of the bar.[/B] Reason is that stiffness increases as a fourth power of change in diameter ie you multiply the diameter 4 times to get the stiffness. Best to work it out in mm. eg a 22mm bar gives an end value of 234256 while a 26mm bar gives 456976 (26x26x26x26) basically nearly twice as stiff!"[/I] Therfore could uprating my present 24mm(F)/15mm(R) to MTech's 25.5mm(F)&18mm(R) have the desired effect of better handling on my stock suspension? [/QUOTE]
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