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Thread: Non VVTI vs VVTI

  1. #1
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    Default Non VVTI vs VVTI

    Is there any truth to the non vvti engine being alot stronger than the vvti motors or are they equally as strong?

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    Default Re: Non VVTI vs VVTI

    Quote Originally Posted by bountykilla0118 View Post
    Is there any truth to the non vvti engine being alot stronger than the vvti motors or are they equally as strong?
    If anything Non Vvt-i is stronger, Toyota went with smaller lighter rods on all their vvt-i engines. from the 2jz- all the way up to the 2uz-fe. let me show u a examples..



    The skinnier rod of the left is a vvt-i 2jz rod, the thicker one on the right is a non vvt-i

    Look at the vvt-i rods in this pic..


    here are 1uz (non vvt-i) vs 3uz (vvt-i)




    Non VVt-i rods are much beefier on all toyota engines.. go with non vvt-i

  3. #3
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    Default Re: Non VVTI vs VVTI

    no to mention getting the vvt-i to work correctly with higher power.. pain in the ass, I liken it to the RB-Neo VVL motors.
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    When all else fails, follow the manufacturer. What did Toyota do? Did they stay with the 7M? See, that was easy.

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    Default Re: Non VVTI vs VVTI

    wow, what a major differences in sizes, what were the developers thinking?!

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    Default Re: Non VVTI vs VVTI

    Quote Originally Posted by JASONA70 View Post
    wow, what a major differences in sizes, what were the developers thinking?!
    lets spend a little less on each motor and in the end we'll make millions? sounds liek a good idea to me.
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    Quote Originally Posted by suprahero View Post
    Chris, that isn't glare from the HID's. Everytime a 7m makes it through WOT without blowing up, God sacrifices a star and throws it towards earth.
    Quote Originally Posted by csnow View Post
    When all else fails, follow the manufacturer. What did Toyota do? Did they stay with the 7M? See, that was easy.

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    Default Re: Non VVTI vs VVTI

    Quote Originally Posted by JASONA70 View Post
    wow, what a major differences in sizes, what were the developers thinking?!
    Maybe that lower rotational weight is a good thing? The lighter rod is better in EVERY aspect for a stock motor, which is what they are producing. There are way more advantages to going with the lightest rod possible AS LONG AS it is strong enough vs. overbuilding. Just a thought, maybe you were being sarcastic and I didn't get it. Anyway.......hopefully that's helpful.

  7. #7
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    Default Re: Non VVTI vs VVTI

    Overbuilding is what got Toyota their reputation in America

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    Default Re: Non VVTI vs VVTI

    Quote Originally Posted by bountykilla0118 View Post
    Is there any truth to the non vvti engine being alot stronger than the vvti motors or are they equally as strong?
    For sure it is true for 2JZ ,but for 1JZ Iím not so sure. Unless someone have firsthand experience with highly modded 1jz-GTE vvt-i my guess will be that there might not even be a difference in the rods ,since the 1JZ-vvti was introduced in 1996 (2Jz-vvti 1998). In addition - the official document from Toyota in regards to the introduction of 1JZ-GTE VVT-I ,they do not mention a difference in the rodsÖ but they DO show the following 2 graphs





    P.S. Any twin turbo lovers still around?

  9. #9

    Default Re: Non VVTI vs VVTI

    Whoever has a spare 1jz vvti needs to bust that thing open and see if any of the internals are weaker than the non vvti's.

  10. #10
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    Default Re: Non VVTI vs VVTI

    Again vvt-i on left non vvt-i on the right..


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