Standard acl bearings v race series

[Rumbul]

Hey guys I am just rebuilding my engine and I was planning on reassembling the engine this weekend but when I went to pick up the mains and rod bearings and instead of the race series ones they accidentally ordered the standard aluminum alugluide ones .
So my question is if I'm building a standard engine (non forged) and just want to put a slightly bigger 16g turbo and some injectors on it , how will these standard bearings go ?

 

[bazeng]

I'm not a fan of alloy, id wait for the tri metal race bearings.....

 

[milkandoj]

After the machein shop said they dont like trimetal bearings, and liked king 2 layer brearings, i did some research.
This is some intersting reading, put out by their company but still a great read to get your head around it.
http://www.kingbearings.com/files/Engine_Bearing_Materials.pdf

All the tech link on materials.
http://www.kingbearings.com/tech_materials.php

Also search around as acl have similar info published.

 

[bazeng]

ACL has the same type of info when I was researching:

http://www.acl.com.au/web/aclwebsite.nsf/8df7d3f7b605537a4a2569660082eda8/ede0c8cce00b6f36ca2571fc002563e8/$FILE/83681922.pdf/21446_acl%20aluglide%20AUS.pdf

Duraglide bearings provide a combination of high
strength and the ability to withstand
harsh/demanding operating conditions. This
makes them ideal for performance/race engines
and rebuilds.

Aluglide bearings provide a combination of moderate to
high strength, good seizure resistance and excellent wear
resistance. These bearings are ideally suited to general
purpose applications (passenger cars and light commercial
vehicles) where reliability and long service intervals are
desirable.
Aluglide bearings are highly preferred in modern import
engines that have been designed for aluminium based
bearings as OE standard fitment.

 

[lozza]

if you are building a standard motor with 16g then ali/si aluglide will be fine. will be more than capable of supporting the loads your engine will make as is.

these dual layers are favoured as OEM replacements (nothing wrong with OEM too) because they offer high service life (low wear).

tri-metals are more suitable for race as they have a soft babbit layer that traps shit in your oil and accepts some oil film breakdown (less likely to spin a bearing), a copper/lead layer that conforms to shaft irregularities (less likely to spin a bearing). combined with steel backing gives ability to take higher loads than dual layer.

 

[vr4goleta]

I have some ACL race rod and main bearings in standard size for sale on ebay if your interested

 

[EVO-00X]

The aluminium Aluglide bearings have been used for donkeys years in many turbo cars and you will have no problem running with them in a daily driver. The new Aluglide technology would be fine IMO and even better than what they were before.
The tri-metal Race version bearings probably should be used where you have had your bottom end machined and balanced and crank journals line honed.
If you havent had your bottom end precision machined, its probably not a good idea to use the ACL Race style bearings. why? Because according to the tests, the top overlay layer is very soft and thin (a poofteenth of a bees doodle) and any distortion in rotating assemblies or crap in the oil can wear it out quickly. Imagine a special ceramic coated piston - the lubrication and heat reduction properties is great provided the coating does not wear or flake off the piston. However, if the coating does wear off the piston its OK because the piston is still the forged alloy & silica piston composition underneath. But with the tri metal Race bearings, when the top layer wears the 2nd layer of copper/tin doesnt have as good lubrication properties.
FYI, Im running ACL Duraglides in because at the time the Race series wasnt invented yet lol