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Thread: Modified NA 4AGE 16V

  1. #11
    Senior Member shinny's Avatar
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    Liam
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    yeah I'm in the same boat,

    I was thinking 264˚ cams, with a high comp piston kit (I think I 11.1:1)
    and some ZE injectors,

    I wanted to do these so I could still get a farily comfortable on the street

  2. #12
    Senior Member awang's Avatar
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    just remember camshafts with 9.0mm of lift or above will require some valve train kit, correct me if I'm wrong on this.
    I also believe that 264 cams are the most suitable for street use, again correct me if I'm wrong

  3. #13

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    Yes, running big cams will require a shim under kit. And there is a much cheaper option than the TRD shim under kit ($1500 anyone :blink: ). The buckets from newer toyota engines are the same diameter, and they are a single bucket/shim setup (the bucket is also the shim) and when you shim the head you actually order a different thickness bucket.

    I am unsure which engine has the same diameter shim/ bucket, but there are several articles I found online that detail the procedure, and one even lists the different thickness buckets and their part numbers, so ordering them though toyota is not a prob.

    The beauty of this set up is the new shim/buckets are much lighter than the old setup, and there is no chance of a shim coming unstuck and quickly destroying your valve train, and prob your engine. And at $14 a shim/bucket, it's much cheaper than the alternatives. :2thumbs:

  4. #14
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    yaris engine has the right shims

  5. #15
    Senior Member awang's Avatar
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    so which yaris engine are you talking about? is it the latest model one?

  6. #16
    Senior Member shinny's Avatar
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    yeah I think under 8.3 mm lift you can get away with, but over 8.0mm you need h/duty springs

    can anyone correct this??

  7. #17
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    which ever yaris/echo had a 1SZ-FE...

  8. #18

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    ????,..you said under 8.3mm lift should be ok..but over 8.0mm you need support?? did I miss anything?

  9. #19
    Senior Member lo_rolla's Avatar
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    Damien
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    Well I'm planning a 200hp na build, and I've budgeted for over 5/6k just for parts.

    Any articles on the 1SZ FE shim replacements around, could some one link me, I've never built a 4A.

    11.3:1 (+), 304* Cams, billet rods, balanced and strengthened crank, Full arp kit, quads and so on....

    I gave up on my 7A plan, but I'm still young so I'll do it one day...
    My AE86 race, street, drift build.

    http://www.ae86drivingclub.com.au/fo...ead.php?t=4156
    With Super Thanks to AJPS for all your AE86 and BBQ needs.

  10. #20
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    5-6k can get you a 20valve with some goodies ontop

    but yeah, you bought that car off some asian dude with white framed glasses aye?
    lol

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