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Thread: 3zz fe auto to 1nz fe auto

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    MI
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    Default 3zz fe auto to 1nz fe auto

    My car is se saloon which has 3zz auto transmission. Due to bad fuel average I was thinking to change it with 1 nz which is 1.5.

    Is it a wise decision or not ?


    Sent from my HTC One_E8 dual sim using PW Forums mobile app


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    Quote Originally Posted by MI View Post
    My car is se saloon which has 3zz auto transmission. Due to bad fuel average I was thinking to change it with 1 nz which is 1.5.

    Is it a wise decision or not ?


    Sent from my HTC One_E8 dual sim using PW Forums mobile app
    Few years back I swapped a 1zzfe into my Se Saloon. Great results

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    Quote Originally Posted by ivtec3 View Post
    Few years back I swapped a 1zzfe into my Se Saloon. Great results
    Auto or Manual ? I am more concerned in fuel average

    Sent from my HTC One_E8 dual sim using PW Forums mobile app

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    But yeah there are other methods to improve your current mileage. Have you tried throttle body service, fuel injector cleaning and new spark plugs?

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    Quote Originally Posted by MI View Post
    Auto or Manual ? I am more concerned in fuel average

    Sent from my HTC One_E8 dual sim using PW Forums mobile app
    Auto. Fuel average remained the same almost but the power was a totally different level, with a fresh JDM 1.8

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    Quote Originally Posted by ivtec3 View Post
    But yeah there are other methods to improve your current mileage. Have you tried throttle body service, fuel injector cleaning and new spark plugs?
    Yeah all done.. average is 8 in city

    Sent from my HTC One_E8 dual sim using PW Forums mobile app

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    Quote Originally Posted by MI View Post
    Yeah all done.. average is 8 in city

    Sent from my HTC One_E8 dual sim using PW Forums mobile app
    This is a good average, keeping in mind that it has aged and deteriorated.

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    Quote Originally Posted by ivtec3 View Post
    This is a good average, keeping in mind that it has aged and deteriorated.
    True. What about 1nz

    Sent from my HTC One_E8 dual sim using PW Forums mobile app

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    Quote Originally Posted by MI View Post
    True. What about 1nz

    Sent from my HTC One_E8 dual sim using PW Forums mobile app
    Can't say much about the 1NZ, but if your current setup isn't acting up then I'd suggest you to not go for a swap.

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    Quote Originally Posted by ivtec3 View Post
    Can't say much about the 1NZ, but if your current setup isn't acting up then I'd suggest you to not go for a swap.
    Hmm yes I know swap has many issues

    Sent from my HTC One_E8 dual sim using PW Forums mobile app

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    Quote Originally Posted by MI View Post
    Hmm yes I know swap has many issues

    Sent from my HTC One_E8 dual sim using PW Forums mobile app
    Yes there will be many iffs & butts when engine swap and less percentage of people are happy after engine swap.
    But in your case choosing 1NZ-FE seems good option as far as its gear is totally suitable with 3zz. And only very technical person can tell that either you need to change gear with this engine or not.
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    Quote Originally Posted by tintin1 View Post
    Yes there will be many iffs & butts when engine swap and less percentage of people are happy after engine swap.
    But in your case choosing 1NZ-FE seems good option as far as its gear is totally suitable with 3zz. And only very technical person can tell that either you need to change gear with this engine or not.
    What about ECU will it be changed and also mounts

    Sent from my HTC One_E8 dual sim using PW Forums mobile app

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    Quote Originally Posted by MI View Post
    What about ECU will it be changed and also mounts

    Sent from my HTC One_E8 dual sim using PW Forums mobile app
    Now ECU is MUST because this 1NR-FE is Japani engine (that comes in many corolla JDMs).

    There are only few engines who have same mountings and can seat well. Otherwise amendment need to be made for sure and same can be expected in your case too.

    For Gear, wait for some other experts advise before swapping. Because its very technical from my point of view. Relation between Engine & Gear has to be very very proportional.
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    Quote Originally Posted by tintin1 View Post
    Now ECU is MUST because this 1NR-FE is Japani engine (that comes in many corolla JDMs).

    There are only few engines who have same mountings and can seat well. Otherwise amendment need to be made for sure and same can be expected in your case too.

    For Gear, wait for some other experts advise before swapping. Because its very technical from my point of view. Relation between Engine & Gear has to be very very proportional.
    OK. Please confirm about one thing more.. 1nz injectors can fit in to 3zz as someone told me to try this for fuel average

    Sent from my HTC One_E8 dual sim using PW Forums mobile app

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    Quote Originally Posted by MI View Post
    OK. Please confirm about one thing more.. 1nz injectors can fit in to 3zz as someone told me to try this for fuel average

    Sent from my HTC One_E8 dual sim using PW Forums mobile app
    @syncview

    plz reply.
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    Quote Originally Posted by tintin1 View Post
    @syncview

    plz reply.
    @syncview. Please update

    Sent from my HTC One_E8 dual sim using PW Forums mobile app

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    Quote Originally Posted by MI View Post
    @syncview. Please update

    Sent from my HTC One_E8 dual sim using PW Forums mobile app
    Waiting for response please help

    Sent from my HTC One_E8 dual sim using PW Forums mobile app

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    Quote Originally Posted by MI View Post
    My car is se saloon which has 3zz auto transmission. Due to bad fuel average I was thinking to change it with 1 nz which is 1.5.

    Is it a wise decision or not ?


    Sent from my HTC One_E8 dual sim using PW Forums mobile app
    Sir, if problem is only wid fuel average and not wid the mechanical side of engine than i would suggest NOT to go for a swap....a swapped 1NZ is most likely to give you almost the same average (if not properly swapped)....and you are not even factoring in the cost of swap and trouble-shooting

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    you can save the cost of swap/engine and still be happy wid bad average....

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    Quote Originally Posted by greyhound View Post
    you can save the cost of swap/engine and still be happy wid bad average....
    Thanks.. Please guide someone asked me to install 1nz injectors in 3zz engine.

    Will they fit and is it a good idea?

    Sent from my LG-D851 using PW Forums mobile app

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