first build, what bearings to run?

[cyclonekid77]

im building my six bolt and i was wondering what crank and rod bearings you guys recomend. i was thinking either oem or acl. im goin to be using wiseco 9.0:1 pistons with eagle rods if that helps any. thanks

 

[JaxTalonTSi]

ACL Tri-metal.

 

[Xit40]

+1 for the ACL. That's what I have in my motor.

 

[cyclonekid77]

what is the advantage of the tri-metal bearings? i dont know to much about them yet.

 

[cyclonekid77]

i was also wondering if i had to do anything to the bearings before i install them, or if they are ready to use right out of the box.

 

[DJYoshaBYD]

you need to plastigauge them to make sure the clearances are in spec.. are you machining the crank? what about the rod ends? really, you would make sure they stay impeccably clean (use latex gloves), put them in the rod and the cap... lightly oil the rod bolts and torque them down to spec.. before you do this, you lay a small piece of plastigauge on the bearing surface.. after they are torqued down, you unbolt the caps and look at the strip you laid on there, and compare it to the spec in your shop manual (you have one, right? ).. if it is tapered or not the right spec, then you need to machine, or change the bearing accordingly... its rreeeaaalllyyy easy.. just get very familiar with the process by reading the engine rebuild section of your manual a few times.. again.. very simple process, but is must be done correctly, otherwise you will be rebuilding it again very quickly..

 

[DJYoshaBYD]

O yeah. Get the tri-metal. Very gooooood. As for the material, I do not know. haha. They are just magic.

 

[Noogabox]

Trimetal has three layers of metal, outer layers are softer ( bottom and top) with a denser layer in between. Bet on needing machined surface though. I would go with genuine mitsu bearings. unless you are trying to build a motor with 600+ potential I have 3 friends who run stock bearings and one just dyno tuned at 436 WHP. He has had the car and this setup for 3-4 years now> He drives it 2-3 days per week.