Tri-metal vs aluminum rod bearings

Posted by lars y, Sep 2, 2013
Newbie Forum - Beginner DSM modification questions and discussions. Common, repetitive, and general discussions will get dumped here from other tech forums. Unless you're a Probationary member you shouldn't post threads here.

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  1. lars y

    lars y Proven Member

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    Halden, Europe
    I read up on the difference regarding the main bearings, but i couldn`t find much information about the rod bearings. Will the same principles apply on the rod bearings?

    From what i could gather the tri-metal bearings can withstand more pressure but the aluminum bearings are more forgiving.
    So in a high HP engine the tri-metal would be the better choice, while aluminum is cheaper and better suited for a stock engine.

    Thanks
     
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  2. TSIfreek

    TSIfreek Proven Member

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    The aluminum bearings are way more forgiving to the crack shaft as they are a very soft metal. I use the aluminum bearings and have no problem with them. Alot of engine builders perfer the aluminum bearings as well. They are cheaper but dont let that fool you.
     
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  3. BlackKnight2013

    BlackKnight2013 Supporting Member

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    Tri metal bearings are mostly used for high reving engines and can take a lot of abuse when they are set up properly and the correct series is chosen.
     
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