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ACL rod bearings e46 M3
13-08-2019, 02:53 PM
Post: #1
ACL rod bearings e46 M3
Hi guys

Has anyone used ACL rod bearings on the S54 motor? Or used ACL bearings on an M motor?
How do they compare over oem bearings?
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13-08-2019, 04:24 PM
Post: #2
RE: ACL rod bearings e46 M3
It's a plaster for a bigger problem. You are generally making a tight clearance even tighter.

The problem remains.

1. Knocking due to our fuel quality.
2. Multiple prior owners not taking care of the car as it should be (revving when cold, 25k plus oil internals, wrong oil used)

Change the bearings with stock ones, stick to the right oils, don't rev hard when cold and change oil every 10-15k and it will last.
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13-08-2019, 04:35 PM
Post: #3
RE: ACL rod bearings e46 M3
Stupid question - is there people out there that do this? (revving when cold, 25k plus oil internals, wrong oil used)

I do all my cars every 10k

Current ladies
Toyota corolla 130 1996 DD
Diahatsu terios 4x4 1.5 The family wagon

EX LADIES
- E46 318 Touring Alpine white 03'-*Sold
- Honda BROS NXR125ES red 07'-DD *sold
- Opel corsa 1.4 white 07'-sold
- VW FOX 1.3 blue matalic 89'-sold
- Opel corsa ute 1.4 silver 05'-sold
- Ford laster 1.6 white 95'- write off
- Ford bantam grey 1.6 990'-sold
[Image: img_20160718_210818_8745185299.jpg]
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13-08-2019, 05:17 PM
Post: #4
ACL rod bearings e46 M3
(13-08-2019 04:35 PM)Stephanv Wrote:  Stupid question - is there people out there that do this? (revving when cold, 25k plus oil internals, wrong oil used)

I do all my cars every 10k


Absolutely.


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2004 BMW 330i M-Sport 6MT
2007 BMW Z4 M Roadster
Ex. 2004 BMW M3 Coupe 6MT
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13-08-2019, 07:20 PM
Post: #5
RE: ACL rod bearings e46 M3
I have VAC coated bearings in my car, have used them since 2010. Did an engine rebuild a few years back and when we pulled the Vac coated bearings, there was not a single mark on them and were still within tolerance, so we reused them.

ACL work fine and are a good choice. Just be sure to change oil every 10k km and you'll be fine.

And if you are interested, you can watch the engine rebuild here -- JEZEBEL ENGINE REBUILD PART 1

[Image: m3_supercharged youtube banner 3_thin_9285988416.jpg]


CP forged pistons 87.5mm, HPF Crower titanium forged rods, ARP L19 head studs and rod bolts. Vac Motorsports oil pump internals. Vac Motorsports inconol racing valves. Vac Motorsports coated Main end and rod bearings.
Vorsteiner Custom 19” Forged Rims. Bilstein B16 PSS10 Coilovers. Turner Motorsports Camber plates. Swaybarbarian upgraded Swarbars with endlinks front and back. Stoptech ST40 big brake kit. 3.91 diff. UUC short shift kit with DSSR. Umnitza Orion Predator LED Angel eyes. GTR Hood. CSL bumper. AC Schnitzer Carbon Fibre Mirrors. AC Schnitzer Front Brace


Current: Vac Motorsports BMW e46 M3 - BEL
ex 99' Supercharged BMW e46 323i - Wolf
ex 93' BMW e36 316i - Detox
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14-08-2019, 11:27 AM
Post: #6
RE: ACL rod bearings e46 M3
Thanks for the feedback gents!
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