What makes the 2jz block so great?

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Thread: What makes the 2jz block so great?

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    SupraForums Member tubasteve's Avatar
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    What makes the 2jz block so great?

    Supraforums,
    I'm putting together a presentation for my engineering class about engine blocks. I love the 2jz engine, always have. My question for you is, WHY? What, technically, makes the 2jz handle such fast amounts of horsepower without cement reinforcement? This is a presentation about the engine block specifically. Any advice or tips, please point me in the right direction.


    Thanks!
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    Raising the BAR Dj6ta's Avatar
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    The fact that it makes people say "2JZ, no shit." lol

    Seriously though, i don't think the block itself is really what makes a 2J what it is. It's more of how every system works in tandem to create the final product. I know I didn't really answer your question, but I'm sure someone who's knows more about this will chime in.
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    SupraForums Member JustinCT's Avatar
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    there's a lot of info in this article. http://mkiv.com/93-98-twin-turbo-faqs-2/

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    SupraForums Member tubasteve's Avatar
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    Quote Originally Posted by JustinCT View Post
    there's a lot of info in this article. http://mkiv.com/93-98-twin-turbo-faqs-2/
    Thanks! I'll do some reading.

    Quote Originally Posted by Dj6ta View Post
    The fact that it makes people say "2JZ, no shit." lol
    haha i'll definitely include that into my presentation.

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    SupraForums Member JGsupraTT's Avatar
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    There is much more to talk about that makes a 2JZ strong in the rod, piston, crankshaft, bearings, etc. design (ie. shortblock). The block itself isn't THAT special. Material, oil galleys, main bearings...I can't really think of much that makes the engine "block" special without going into the other parts of the shortblock.

    People don't think the 2JZ engines are awesome because of the "block". The reason it is awesome is the material choices of the whole shortblock (specifically the rods and pistons). There are plenty of interesting things to discuss (and articles) about those components.
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    SF.com Member #0000000023
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    Therefore it must not exist right?

    Quote Originally Posted by JGsupraTT View Post
    I can't really think of much that makes the engine "block" special without going into the other parts of the shortblock..

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    SupraForums Member tubasteve's Avatar
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    Well I guess i should have specified. The block assembly! not just the crankcase and cylinder housing.

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    SupraForums Member 2 DA MAX's Avatar
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    Block and internals are made of Adamantium.
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    SupraForums Member JGsupraTT's Avatar
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    Quote Originally Posted by V8THIS View Post
    Therefore it must not exist right?
    huh? I don't believe I said that. Do you have some sort of problem with me?

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    SupraForums Member JGsupraTT's Avatar
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    Quote Originally Posted by tubasteve View Post
    Well I guess i should have specified. The block assembly! not just the crankcase and cylinder housing.
    Yes, that does make a big difference. The shortblock assembly opens up a lot of things that can be discussed, especially from a materials point of view.

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    SupraForums Member tubasteve's Avatar
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    Quote Originally Posted by 2 DA MAX View Post
    Block and internals are made of Adamantium.

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    closed deck

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    formerly Vicksupra Silver Supra's Avatar
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    Quote Originally Posted by 2 DA MAX View Post
    Block and internals are made of Adamantium.
    My turbos are made of unobtainium.
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    Raising the BAR Dj6ta's Avatar
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    Quote Originally Posted by VickSupra View Post
    My turbos are made of unobtainium.
    My windows are made translucent aluminum.

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    SupraForums Member tubasteve's Avatar
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    ok guys back on topic please

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    Quote Originally Posted by SUPRASSS View Post
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    thats another huge factor! along with having seven main caps!
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    SupraForums Member grandporschegt's Avatar
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    i think simply being a I6 inherently adds to the strength 7 mains vs 5 mains in a v8
    i have always said i would love to have been a fly on the wall of the engineers who thought it necessary to WAY overdo the internal parts for a 320 hp motor.

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    Raising the BAR Dj6ta's Avatar
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    Quote Originally Posted by grandporschegt View Post
    i think simply being a I6 inherently adds to the strength 7 mains vs 5 mains in a v8
    i have always said i would love to have been a fly on the wall of the engineers who thought it necessary to WAY overdo the internal parts for a 320 hp motor.
    I always wondered if the engineers knew they were designing a motor that could put out so much power with such few mods.

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    SupraForums Member slither's Avatar
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    Quote Originally Posted by grandporschegt View Post
    i think simply being a I6 inherently adds to the strength 7 mains vs 5 mains in a v8
    i have always said i would love to have been a fly on the wall of the engineers who thought it necessary to WAY overdo the internal parts for a 320 hp motor.
    That and balance imo is the main reason they take the beating they do
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    Quote Originally Posted by Dj6ta View Post
    The fact that it makes people say "2JZ, no shit." lol

    Seriously though, i don't think the block itself is really what makes a 2J what it is. It's more of how every system works in tandem to create the final product. I know I didn't really answer your question, but I'm sure someone who's knows more about this will chime in.
    THIS.

    What makes the 2jz so great is the entire system. From the Supra and the high performance scene and vendors that evolved from it and the used parts market. To the Lexus vehicles and all the JDM vehicles that were grandpa cars and are now being scrapped to import the engines. The block is just a good block, it's the whole ecosystem that makes the 2jz great.

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    IMO, one of the factors that makes it so great is the fact that it is an INLINE 6. From a strength standpoint, it has big advantages over a (more) typical "V" design.

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    i.e torque...

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    the motor came from a time in toyota's history where they overengineered their engines..... such is why there are so many old ass toyota's with well over 150k+ miles and still purring like kittens...... like my 88 corolla..... 178k miles and im still getting 35+mpgs with ice cold a/c and super hot heater and comfortable ass stock seats. save for the cracked dash thanks to the hot texas summer last year, other than that..... I love my beater

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    SupraForums Member slither's Avatar
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    Quote Originally Posted by cptpain View Post
    the motor came from a time in toyota's history where they overengineered their engines..... such is why there are so many old ass toyota's with well over 150k+ miles and still purring like kittens...... like my 88 corolla..... 178k miles and im still getting 35+mpgs with ice cold a/c and super hot heater and comfortable ass stock seats. save for the cracked dash thanks to the hot texas summer last year, other than that..... I love my beater
    Couldn't dissagree more. Buddy drives a 80's festiva, purring like a kitten, getting 40+mpg. Doesn't have a thing to do with the rest of there fleet. 7 mains, perfect balance and good materials/design

  25. #25
    question conjecture swing lo's Avatar
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    Probably has to do with copious amounts of cowbell.
    Last edited by swing lo; 10-03-2012 at 10:20 PM.

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