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06-23-2023, 12:38 PM | #1 |
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Video - These are THE BEST rod bearings for your S65/S85 - Mahle Motorsport
We've carried out hundreds if not thousands of rod bearing services over the years, and we've always chosen to use OE BMW bearings and bolts. The reason being that we knew if looked after the BMW bearings could last the lifetime of the car, especially at this stage where they are much more likely to be a weekend car. However we've now changed and you may ask yourself why after so many years? Well the simple answer is when Mahle Motorsport, the same company responsible for the bearings used in high end motorsport such as F1 and endurance racing, comes out with an extremely high quality product designed and manufactured to their exacting standard well that is something we just can't ignore. Even holding the bearing in your hand you can tell it's a cut above the rest with the way it has been manufactured. As this is a primarily US based forum this is just sharing a little bit of information, although if you have trouble getting hold of them please do email us on sales@evolveautomotive.com and we'll see if we can get you a set - They're in high demand already and we get through a fair few sets a week in our workshop. Now we have our own E92 M3s with the BMW bearings in, we're not going to be replacing them with these as we still stand by the fact that if correctly looked after like we will they're not going to suddenly fail. So don't suddenly think you need to do the service again - but if you haven't had it done yet, why settle for less than the best? That's something we try to live by with all the products we design and sell. |
06-23-2023, 01:45 PM | #2 |
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Matt, do you know if these new MAHLE S85/S65 Rod bearings provide the extra clearance needed to solve the OEM spec bearing clearance issue (as done by B.E. bearings) or are they just the same spec as OEM for bearing clearance?
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06-23-2023, 02:30 PM | #3 |
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Can you shed more light as to what makes them the best? Specifically, what makes them better than the BE Bearings?
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06-23-2023, 02:55 PM | #4 |
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06-23-2023, 04:07 PM | #6 |
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Mahle (or more specifically Vandervell who Mahle purchased) have designed a proprietary software to accurately simulate the requirements of the engine, and have specced the bearing clearance accordingly at 55 microns.
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06-23-2023, 04:11 PM | #7 | ||
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If you want some information on the technical aspects of the bearings themselves, your best place to go is the manufacturer themselves - https://vandervell.co.uk/aftermarket/our-technology/ https://marmotorsport.com/wp-content...e-Bearings.pdf https://marmotorsport.com/wp-content...ance-Study.pdf https://marmotorsport.com/wp-content...er-Marking.pdf |
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06-23-2023, 05:04 PM | #8 |
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LoL at the thought of buying these instead of BE...
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06-23-2023, 05:15 PM | #9 |
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While I can appreciate a new product out on the market, making a claim like “best” needs to come with supporting data and facts.
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06-23-2023, 05:21 PM | #10 | |
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Btw, you can't tell anything much of it's quality by holding it in your hand
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Oil analysis for finding wearing rod bearings?. Collation of oil analysis reports with some rod bearing photos for the M3's S65. My categorisation of pulled rod bearings in the rod bearing condition thread. My updated 'Blown engines' list. Last edited by Assimilator1; 06-23-2023 at 05:28 PM.. |
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06-25-2023, 04:44 PM | #11 |
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I feel like its weird to come to an enthusiast forum with an unproven product, say its the best, and say, forget about those other guys with the proven product, buy this instead.
As far as I know, no engine has ever spun BE Bearings, without some other sort of precipitating issue. (I know some have spun but the issue was traced back to something else IIRC.) I guess its nice to have options, I will let other people fuss with this. I literally have never seen a logical reason for NOT choosing BE Bearings. And anyone that chooses BMW bearings is just replacing their bad product with more bad product. Why bother? Its not even like you save money. |
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06-26-2023, 04:41 PM | #12 | |
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Perhaps these Mahle bearings will be a worthy alternative here in the UK at least? (although I've no idea how much they are).
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Oil analysis for finding wearing rod bearings?. Collation of oil analysis reports with some rod bearing photos for the M3's S65. My categorisation of pulled rod bearings in the rod bearing condition thread. My updated 'Blown engines' list. Last edited by Assimilator1; 06-28-2023 at 03:29 PM.. |
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06-26-2023, 05:11 PM | #13 |
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This statement calls into question the science and or reputation of your belief that these Mahle bearings are the best solution.
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06-27-2023, 11:23 AM | #14 | |
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ACL is still way better than BMWs, if BE bearings went away tomorrow I think ACL might be second best. - but I also stopped investigating the better bearing issue after I had mine done. (BE + ARP bolts.) |
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06-27-2023, 07:00 PM | #15 |
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Just another clickbait statement & video!
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06-28-2023, 03:43 PM | #16 |
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I wouldn't go that far by any means, Mahle are real bearings after all, and a reputable make too, right? And they are increased clearance bearings too, so again seem like a worthy rival to BE bearings.
And I've found a price for them this time! Mahle bearings are £349 from MAR Motorsport (pretty decent ), whereas BE Bearings from Areeve for example are £737!! (I couldn't find anyone else who sells them, from a quick look anyway. Btw in Q1 2020, they were £600). Maybe now the companies selling BE bearings in the UK will stop the price gouging!?
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Oil analysis for finding wearing rod bearings?. Collation of oil analysis reports with some rod bearing photos for the M3's S65. My categorisation of pulled rod bearings in the rod bearing condition thread. My updated 'Blown engines' list. Last edited by Assimilator1; 07-07-2023 at 05:50 PM.. |
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06-28-2023, 10:12 PM | #17 |
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Mahle owns Clevite, which made the BMW bearings and makes the VAC and BE bearings.
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06-28-2023, 11:38 PM | #18 |
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so long story short.... they've been out for 3 months and that's it.
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06-29-2023, 08:13 AM | #19 | |
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There are technical differences between BE and Mahle Motorsport bearings. More on that later in a separate write up. But for now, the current BE V2 shells are a Mahle VP2 base metal shell with Silver Oxide overlay, whereas these Mahle Motorsport bearings are also a Mahle VP2 base metal shell with Lead-Indium overlay. The VP2 is an 85-Rockwell base of steel with bronze embedded over the top. This base shell is pressed into shape, machined for eccentricity, before the overlay plating is applied. The VP2 base shell is FAR superior to anything by ACL, as is the Silver Oxide and Lead-Indium overlays as well. |
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06-29-2023, 08:51 AM | #20 | |
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07-07-2023, 05:47 PM | #21 | |
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No, sadly VAT would have to be added (20%), and import duty (3-4% IIRC), and bank commission for foreign exchange (~3%), so let's say a round 27% on top, that makes it £589 + shipping of ~£20, so £609, a lot more, but still quite a bit cheaper than Areeve!
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Re VP2 vs ACL, based on what?
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Oil analysis for finding wearing rod bearings?. Collation of oil analysis reports with some rod bearing photos for the M3's S65. My categorisation of pulled rod bearings in the rod bearing condition thread. My updated 'Blown engines' list. |
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11-04-2023, 03:40 PM | #22 | |
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I do have a question I’d like to ask on an open forum though. Why do you charge £691 for a set when retail is £349? |
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