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Delrin or aluminum rear subframe bushing?
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04-16-2016, 12:05 PM | #23 | |
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And I have AKG adjustable endlinks on the rear ARB. And it's my daily as well as a track car. But I know they'll fail and when they do I'll just install another set, they're disposable parts. Using their engine mounts and DSSR without the slightest problem as well.
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2011 E90 328i 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+BPC, SS+CI528+ThermoTec+SS#1+2XBurns, AKG 75D eng/trans, Al/Delrin diff/RS, CM 850, UCP, CAE, AKG DSSR, DiffsOnline 3.91 30/90 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, Aurora PR+BW spherical, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors+cooling, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 6pt cage+FIA, Braille, RT DL1Mk3
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04-16-2016, 12:10 PM | #24 | |
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The only thing that's different is whine from the diff on downshifting decel and gear rattle at idle from the trans since the flywheel is solid and the clutch discs are solid hub type. Maybe the whine would be less if the mounts weren't Delrin but it's only during engine braking so it's a don't-care.
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2011 E90 328i 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+BPC, SS+CI528+ThermoTec+SS#1+2XBurns, AKG 75D eng/trans, Al/Delrin diff/RS, CM 850, UCP, CAE, AKG DSSR, DiffsOnline 3.91 30/90 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, Aurora PR+BW spherical, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors+cooling, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 6pt cage+FIA, Braille, RT DL1Mk3
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04-16-2016, 05:27 PM | #25 | ||
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![]() Maybe my poor experience last year with AKG is a rarity? But the warranty and the explanation of non coverage was poor at best. |
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04-16-2016, 05:35 PM | #26 | |
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The warranty is very good but doesn't cover misunderstanding the meaning of 'race only'; not a dig, honestly, it's just that they really mean it and I suspect most of us gloss over the disclaimer every time we see it. I also have no illusions about their polyurethane engine mounts lasting as long as OEM parts either but they're worth every penny. AKG makes seriously good stuff.
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2011 E90 328i 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+BPC, SS+CI528+ThermoTec+SS#1+2XBurns, AKG 75D eng/trans, Al/Delrin diff/RS, CM 850, UCP, CAE, AKG DSSR, DiffsOnline 3.91 30/90 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, Aurora PR+BW spherical, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors+cooling, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 6pt cage+FIA, Braille, RT DL1Mk3
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04-16-2016, 06:14 PM | #27 | ||
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![]() http://www.akgmotorsport.com/warranty/ If you read their warranty you will see it's not for "race only." You will also see everything is at their discretion and includes a laundry list of exclusions including: off road, track, street, educational, etc. Who doesn't fit into one of these categories? Basically this is an easy way to deny a warranty and this is what happened to me. Again, my experience with them has been different than yours. I'm glad it's worked out for you... |
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04-16-2016, 06:17 PM | #28 | |
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I said I'm not relying on their warranty. I mean, really, who gives a shit? The part costs are so low it's immaterial. And I'm guessing you didn't install them correctly if you got so little use out of them compared to my vastly greater use without an issue. I swear, if you can't afford to maintain a track car, buy a friggin Camry dude.
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2011 E90 328i 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+BPC, SS+CI528+ThermoTec+SS#1+2XBurns, AKG 75D eng/trans, Al/Delrin diff/RS, CM 850, UCP, CAE, AKG DSSR, DiffsOnline 3.91 30/90 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, Aurora PR+BW spherical, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors+cooling, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 6pt cage+FIA, Braille, RT DL1Mk3
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04-16-2016, 06:18 PM | #29 |
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I wanted a little more drivablity than those but stiffer than M3. My AKG black fit the bill. Rear is locked solid and ride isn't harsh. Just saying.
Last edited by Fundguy1; 04-16-2016 at 06:35 PM.. |
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04-16-2016, 06:39 PM | #30 | ||
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With regard to my personal car. Robc1976 installed most of my after market parts. He's probably installed over 30 of sets end links. He's only seen two failures. Guess who manufactured them? Yes, the two different failures were made by AKG. |
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04-16-2016, 07:25 PM | #31 | |
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Didn't read or understand the disclaimer Didn't read the warranty Couldn't tell from the obvious picture on their website that the ballends aren't sealed meaning no one with the slightest experience would use these parts on the street Misinstalled them (obviously) and couldn't see that the ballends weren't sealed and thus shouldn't be used on a street car (obviously) Misused them (obviously) And then went whingeing to the mfg about their lousy quality? LMAO, how the fuck old are you? Here's a tip, your evaluation of AKG endlinks isn't worth a bucket of runny shit, statistically speaking. Oh, and btw, mine isn't either, obviously.
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2011 E90 328i 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+BPC, SS+CI528+ThermoTec+SS#1+2XBurns, AKG 75D eng/trans, Al/Delrin diff/RS, CM 850, UCP, CAE, AKG DSSR, DiffsOnline 3.91 30/90 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, Aurora PR+BW spherical, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors+cooling, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 6pt cage+FIA, Braille, RT DL1Mk3
Last edited by justpete; 04-16-2016 at 07:37 PM.. |
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04-16-2016, 09:10 PM | #32 | ||
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I'm 41. How old are you? Does it matter? ![]() Have you ever had a problem with a product and shared on a forum? I could go into full detail and share with you what Lisa said concerning my issue. However, I have no intention of doing so in this thread. If you are truly interested please pm me. Otherwise you can pray your end links don't break as your taking a hard right turn, as that day is rapidly approaching... ![]() |
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04-16-2016, 10:21 PM | #33 | |
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![]() Anyhow, Justpete is correct. Is not that I'm bias towards AKG but what is he saying is true. Race parts are just that, race parts! They are not designed with longevity in mind. The misconception roots from most of us using a race part of some sort that is superior than the factory part. For exapmle: aluminum coolant flange vs the plastic stock known to crack and leak. Now, unfortunatelly, this is not the rule across the board for all race oriented parts but we blindingly are expecting to be. Is not only AKG swaybar links, is also other parts from various manufacturers like control arm and toe links. People buy them, instal them, and they are mismatch with the rest of the suspension like softish springs, under dampen shocks and stiffer (since is the easiest mod) than stock swaybar on a daily driven car when all the stress will be on these AKG links and when the part fails prematurely they complain of clunks and squeaks. Again, I'm not AKG affiliate. |
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04-16-2016, 10:49 PM | #34 | |
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And I seriously doubt you can feel the subframe movement with PU mounts, especially on streets. Most likely you are feeling the tire flex... Btw, please point out where my argument is false. Reliability is not a concern with correctly installed PU mounts, as with aluminum or delrin.
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04-16-2016, 10:59 PM | #35 | ||
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![]() It's funny that one automatically assumes it's installer error if a part fails prematurely... Just do a google search on "AKG" and "failed." You will quickly see I'm not the only one who has had a problem. I should also note I haven't had an issue with my current non AKG end links. |
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04-16-2016, 11:15 PM | #36 | ||
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04-18-2016, 10:01 AM | #37 | |
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And how the are end links related to PU bushings again? Your reading comprehension and deductive reasoning really needs some work... As you said, this isn't rocket science...
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04-18-2016, 10:29 AM | #38 | ||
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I can only give you the facts as they were presented to me. Then ask you to speak with the entities that build, race and sell them... If you continue to pretend you know it all, you will likely never become more knowledgable. Your comparison of the wheels is weak at best. Wheels are not considered a wear item, where as bushings are. Try comparing apples to apples next time... Furthermore, if you're going to try and degrade someone, you may want to make sure you aren't failing at the same thing you are trying to criticize. |
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04-18-2016, 10:45 AM | #39 |
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I got AKG 75D subframe bushes but aint fitted them yet. Biggest hurdle is finding a shop who can install them by lowering each corner a bit, but most say subframe needs to come off?
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04-18-2016, 11:21 AM | #40 | |
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Sure, there are places where you shouldn't use PU if are concern about long term durability, such as control arm bushing where it experience high degree of movements and high heat environment such as motor mounts that are in close proximity to the exhaust. Subframe mounts fortunately doesn't have to put up with any of that. Anyway, you can keep on denying the facts that have been presented in front of you. But I am sure other readers can draw their own conclusion. Just FYI, wheels are wear items as well by your definition. The aluminum/magnesium alloy actually do flex and undergoes metal fatigue especially used with slicks and aero. They are replaced quite regularly in pro-level racing. But is that relevant to a mostly street car? No... Same goes for your argument of PU vs. Al/delrin. Unless your car is a stripped out track car and/or willing to pay extra labor for installing aluminum/delrin bushings, which can be a pain to insert due to close tolerance and minimal give of these materials, you are much better off with PU of high durometer rating.
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09 BMW E92 335i: [I] Top Mount EFR 7670 / Dinan / AP Racing / Wavetrac / TC Kline
07 BMW R1200S: Shine Yellow / Akrapovic / Ohlins 19 Volvo V90 T6: R-Design / Bowers & Wilkins / Polestar Optimization 08 Porsche 997 Carrera S: 6MT / CXX / PSE / Tractive DDA ![]() |
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04-18-2016, 11:56 AM | #41 |
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I don't recall giving you a definition of a wear item? If you consider a wheel a wear item, I don't think there is any hope for you.
Here is my very simple definition... A wear item, is something that wears out eventually needing to be replaced. It usually has a predetermined usage shelf life. IE tires, windshield wiper blades, belts, etc. Yes, wheels may become damaged and require a replacement. And others may change out their wheels because of preference in looks or performance... But are not considered wear items. Using your logic implies the entire car is a wear item. If I total it I will need to replace it... ![]() Bushings are considered wear items. Whether in a control arm or in the subframe. They fail, especially on cars that were built 13 years ago. There are also certain after market brands and *materials* that have a shorter shelf life than others... |
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04-18-2016, 01:21 PM | #42 | |
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09 BMW E92 335i: [I] Top Mount EFR 7670 / Dinan / AP Racing / Wavetrac / TC Kline
07 BMW R1200S: Shine Yellow / Akrapovic / Ohlins 19 Volvo V90 T6: R-Design / Bowers & Wilkins / Polestar Optimization 08 Porsche 997 Carrera S: 6MT / CXX / PSE / Tractive DDA ![]() |
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04-18-2016, 02:22 PM | #43 | ||
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![]() If you want to know the truth about solid bushings outlasting PU bushings, don't take my word for it. Contact Turner!! They have experience with both types of subframe bushings on hundreds of customer's cars. Not to mention their own race cars. They have more experience than you ever will... You can rest your case because you are wrong... |
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04-18-2016, 03:12 PM | #44 |
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