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Thread: JZA70 - Can you use a clutch fan?

  1. #1
    Junior Member Carport Converter Z2TT's Avatar
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    Default JZA70 - Can you use a clutch fan?

    Hi,

    Has anybody tried to use a 1j/2j clutch fan on a JZA70 when changing the waterpump with a 2jz-gte One, and which shroud did you end up using, GA70/MA70 shroud?

    Which belt would I need to use for the clutch fan, can I re-use the one that was used for the Hydraulic fluid pump?

    Is there any clearance problems?
    Last edited by Z2TT; 08-04-2010 at 12:01 AM.

  2. #2
    Triptek Enhanced Backyard Mechanic triptek's Avatar
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    Default Re: JZA70 - Can you use a clutch fan?

    I'm using a jzz30 clutch fan in my jza70. Using a ma70 shroud. There's no clearance problems. IC pipes might get in the way of the shroud though. Some mods might need doing there. Original belt will work fine. Here's a pic of mine.

    1990 SW20 MR2 turbo Gen III 3S-GTE conversion, 3" exhaust = 264.9rwhp
    1985 JZA61 2JZ-GTE + TO4Z = 442.1rwhp @ 18psi
    1991 JZA70 Limited 2JZ-GTE vvti GTX30/76r
    1994 GZX90 Mark II 1GZ-FE V12
    1980 MA45 Undergoing Restoration

  3. #3
    Junior Member Carport Converter Z2TT's Avatar
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    Default Re: JZA70 - Can you use a clutch fan?

    Thanks,

    Did you need to use the pulley from the JZZ30?

  4. #4
    Triptek Enhanced Backyard Mechanic triptek's Avatar
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    Default Re: JZA70 - Can you use a clutch fan?

    Yer you'll need the pulley from a jzz30/jza80.
    1990 SW20 MR2 turbo Gen III 3S-GTE conversion, 3" exhaust = 264.9rwhp
    1985 JZA61 2JZ-GTE + TO4Z = 442.1rwhp @ 18psi
    1991 JZA70 Limited 2JZ-GTE vvti GTX30/76r
    1994 GZX90 Mark II 1GZ-FE V12
    1980 MA45 Undergoing Restoration

  5. #5
    Junior Member Carport Converter Z2TT's Avatar
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    Default Re: JZA70 - Can you use a clutch fan?

    Thanks,

    Is the 2j motor longer than the 1j? Reason is that it might affect where my fan sits compared to yours, as in too far in the shrowd or too far away from the shrowd, since you got a 2j I'll be using 1j.

  6. #6
    Is a Chief Engine Builder wilbo666's Avatar
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    Default Re: JZA70 - Can you use a clutch fan?

    Quote Originally Posted by Z2TT View Post
    Thanks,

    Is the 2j motor longer than the 1j?
    Nope Same length!



    2jz is taller than 1jz is what you might be thinking But the water pump is in the same spot so that won't effect you either

    Cheers
    Wilbo
    Wilbo's Wiki (Includes 2JZ-GTE Wiring, etc! )

    Wilbo's JZA80
    Wilbo's JZZ12

  7. #7
    Junior Member Carport Converter Z2TT's Avatar
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    Default Re: JZA70 - Can you use a clutch fan?

    Sounds good, anybody who has a 1j clutch fan, coupling and pulley that they would sell PM me.

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