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      11-21-2016, 12:47 AM   #1
andrewkd16
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Oil and Rod bearings?

Ok real quick I wanted to let everyone know my car has gintani race catless exhaust, dinan pulley, dinan intake, ess tune and dct flash. I will be switching oils soon and want to use mobile 1 0w50 race oil. All oil before was 10w60 bmw oil. I am also going to have a shop do my rod bearings very soon. Which bearings should I get and will it be ok to still use the 0w50 mobile 1 with say an aftermarket set of bearing such as BE bearing for example.

So which bearings should I buy? And what oil should I use to get best life and performance out of my s65
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      11-21-2016, 12:49 AM   #2
andrewkd16
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I'm guessing it would be better if I bought all the parts for the shop, so can anyone post a link to the items and item numbers I should get together for them.
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      11-21-2016, 09:11 AM   #3
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i see these threads from time to time and never asked, but i will this time... why? why switch oils?
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      11-21-2016, 09:26 AM   #4
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Quote:
Originally Posted by andrewkd16 View Post
Ok real quick I wanted to let everyone know my car has gintani race catless exhaust, dinan pulley, dinan intake, ess tune and dct flash. I will be switching oils soon and want to use mobile 1 0w50 race oil. All oil before was 10w60 bmw oil. I am also going to have a shop do my rod bearings very soon. Which bearings should I get and will it be ok to still use the 0w50 mobile 1 with say an aftermarket set of bearing such as BE bearing for example.

So which bearings should I buy? And what oil should I use to get best life and performance out of my s65

M1 Racing 0w50 is going to be a bad idea. The ZDDP levels are super high (more than double that of current API maximums) and will cause cat converter fouling and possibly even deposits.

What's wrong with either the Castrol TWS 10w60 or new BMW-branded 10w60?
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      11-21-2016, 11:04 AM   #5
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      11-21-2016, 11:28 AM   #6
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Its been proven the VAC bearings are the way to go.
Switching to 0W50 will give you 50 more WHP lol.
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      11-21-2016, 03:40 PM   #7
andrewkd16
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Well I'll stick with the bmw oil I suppose lol. Was totally looking forward to the 50hp from oil. So VAC over the BE bearings?
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      11-21-2016, 03:42 PM   #8
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Was honestly looking for a better oil that possibly help with prolong life of bearings so really tbh just thought maybe the 0w50 might be better clearly it isn't the way to go
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      11-21-2016, 04:00 PM   #9
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Talk to Market Motor Works. Talk to Rob or Dave they did mine earlier this year. I went with VAC bearing, OEM Bolts, and have been running Motul 300v 15w50. Car is track car but Motul 300v is great oil.
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      11-21-2016, 04:36 PM   #10
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Quote:
Originally Posted by andrewkd16 View Post
Well I'll stick with the bmw oil I suppose lol. Was totally looking forward to the 50hp from oil. So VAC over the BE bearings?
If you don't believe there is a clearance issue and want to keep stock clearance, then go with VAC. If you believe there is a clearance issue and want to fix it, then go with BE Bearings.
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      11-21-2016, 04:37 PM   #11
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Quote:
Originally Posted by warp10 View Post
Talk to Market Motor Works. Talk to Rob or Dave they did mine earlier this year. I went with VAC bearing, OEM Bolts, and have been running Motul 300v 15w50. Car is track car but Motul 300v is great oil.
Ok will do. How much was it there labor and parts if you don't mind me asking pm me if you prefer
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      11-21-2016, 06:19 PM   #12
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Quote:
Originally Posted by Green-Eggs View Post
Quote:
Originally Posted by andrewkd16 View Post
Well I'll stick with the bmw oil I suppose lol. Was totally looking forward to the 50hp from oil. So VAC over the BE bearings?
If you don't believe there is a clearance issue and want to keep stock clearance, then go with VAC. If you believe there is a clearance issue and want to fix it, then go with BE Bearings.
VAC Bearings have extra clearance as well. It's there updates bearings.
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      11-21-2016, 06:50 PM   #13
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Quote:
Originally Posted by warp10 View Post
VAC Bearings have extra clearance as well. It's there updates bearings.
VAC has clearances closer to stock than they are close to BE


Quote:

Factory OEM bearings:
Nominal: 0.00170 inch, range: 0.00135 - 0.00200 inch
http://wiki.rcollins.org/core/index....5_Rod_Bearings

VAC:
Nominal: 0.00200 inch, range: 0.00160 - 0.00200 inch
http://wiki.rcollins.org/core/index....ecifications_4

BE Bearings:
Nominal: 0.00240 inch, range: 0.00180 - 0.00280 inch
http://wiki.rcollins.org/core/index....ecifications_3

Last edited by Shredicus; 11-21-2016 at 06:59 PM.
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      11-21-2016, 10:49 PM   #14
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Quote:
Originally Posted by warp10 View Post
VAC Bearings have extra clearance as well. It's there updates bearings.
That's not exactly the whole story. They start with "extra clearance" Clevite bearings and then add their coating. After the coating is applied they intend for them to be as close to original dimensions as possible. Variances in the coating thickness will allow for some minor deviation.

You don't buy VAC bearings if your intention is to open up the clearances. BE is the only bearing that I know of that were engineered from the start to open the clearances even after being coated.
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      11-21-2016, 11:40 PM   #15
andrewkd16
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So what will be the best choice be bearing and stick with the thick 10w60 oil or factory with a thinner oil? Or vac and a slightly thinner oil. I am trying to go the route that will last longer and not cause problems down the road?
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      11-21-2016, 11:50 PM   #16
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Quote:
Originally Posted by andrewkd16 View Post
I am trying to go the route that will last longer and not cause problems down the road?
Well yeah...you and every other M3 owner, lol.

The bearing solutions have evolved, with additional options becoming available over time. Each was an improvement on the previous, imo. First were WPC treated oem bearings...and VAC's solutions...Then BE. I prefer to use BE when I can get them and VAC when I can't.

Use 10w60 with BE. VAC will do well with the same but can go thinner if you want. I wouldn't mess with WPC/OEM bearings anymore.
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      11-22-2016, 01:41 AM   #17
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Choosing the right bearings/oil combo is only half the equation, maybe less, you have to find a meticulous tech when researching for a shop, as a bad installation can drastically shorten your engine life.
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      11-22-2016, 01:43 AM   #18
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Vac actually recomended 5w40 for me, course thats a stroker build. Had other engine builders suggest that as well. But motul 5w40 is what ill be running from now on.
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      11-22-2016, 02:51 AM   #19
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It's also amusing when I found out Lambo recommends Castrol LL-03 5W30 for their Gallardo/Huracan/Aventador, and all the owners are trying to go thicker. Many even swear by EDGE/TWS 10W60 because BMW M guys love the stuff, joke's on them LOL.

I've switched to M1 0W40 from the get go, and I always dump the 10W60 when I get home from the free service, can't have 10W60 chew up my bearings during warm up, then it'd be too late to switch oil.
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      11-29-2016, 12:45 AM   #20
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Quote:
Originally Posted by Shredicus
VAC has clearances closer to stock than they are close to BE
AFAIK, RG is the only guy who's ever measured and posted the results of the VAC Clevite bearings. So we're talking about a sample size of ONE. VAC said themselves they designed them for stock clearance after the coating was applied. The fact that RG measured a slight increase, on a single set of bearings, could have been the outlers and not the norm. Unless we get more measurements, we'll never know.
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