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Thread: 4agze extractors on a 4ag head?

  1. #46
    Spirited Backyard Mechanic Casey-G's Avatar
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    Default Re: 4agze extractors on a 4ag head?

    Are you sure?

    i know the comp droppers are 1.2mm and the ones that bump up your CR are .8mm and im pretty sure 0.040" is a replacement size which is.. oh fuck i was wrong 1.02mm but seriosly i thought that, i have no evidence but.

    is there an online 4age book hosted on toymods or something?

  2. #47
    Learner / modder / Backyard Mechanic PrettyCoolWagon's Avatar
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    Default Re: 4agze extractors on a 4ag head?

    Quote Originally Posted by Casey-G View Post
    Sorry i meant 7afe, but yes apparently the headgasket is .8mm from the factory which is thinner than a 16v 4age HG from factory (1mm) but have the same oil/water/bore and bolt holes aka are a match, therfore is you own say a ae92 sx/gti with a 4age, you can bump the compression up on the cheap by buying a factory replacement 7afe HG instead of a "cometic/TRD ect" .8mm head gasket.

    I'd like to meet the guy, cant believe everything you hear till its from the mouth (no offence) i know 300kW is easily doable on a stock bottom end with a 4age.. maybe he underated the toyo factory gear by mistake

    seen a dyno sheet from a guy over in NZ with a 4agte hatch, pushing 32psi though stock gze internals with a blacktop head making in excess of 350kW at the front treads so its deffs doable.
    He blamed the tuner for blowing the block. They had a difference of opinion on fine tuning.. as he was the mechanic/drift racer & not the expert, he trusted the tuner against his own better judgemnet & BAMMO! ...lived to regret it..

    Got any links to 300+kw 4A's?

    PS. I'd love your ghey seca even more if it was converted to AWD or RWD.
    Power at the front treads always makes me smile & shake my head ...somehow it just aint right LOL
    4AFE/gearbox issues, 4AGT/ZE replacement changes to fully blown 7AGTE project...
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  3. #48
    Toymods Events Secretary Too Much Toyota trdee's Avatar
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    Default Re: 4agze extractors on a 4ag head?

    Quote Originally Posted by Casey-G View Post
    Are you sure?

    i know the comp droppers are 1.2mm and the ones that bump up your CR are .8mm and im pretty sure 0.040" is a replacement size which is.. oh fuck i was wrong 1.02mm but seriosly i thought that, i have no evidence but.

    is there an online 4age book hosted on toymods or something?
    yeah pretty sure its here somewhere. i have it on file anyways, doesnt say anything about HG thickness in there.
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  4. #49
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    Default Re: 4agze extractors on a 4ag head?

    Standard headgaskets are more than adequate... As the guys have said something else is busted and it isn't the headgaskets fault.

    I've always had the opinion it is far better to blow a headgasket than destroy a head / block.

  5. #50
    Learner / modder / Backyard Mechanic PrettyCoolWagon's Avatar
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    Default Re: 4agze extractors on a 4ag head?

    Quote Originally Posted by Gavatron View Post
    Sounds like he's going from 8.0:1 early GZE pistons to the 8.9:1 GZE pistons, which will definitely change his compression ratio....
    ..Is it true that turbo d & supercharged engines should run lower compression ratios?
    I'm running a sc14 so is there any danger or anything I need to know about, running the 8.9:1 CR & sc14?
    4AFE/gearbox issues, 4AGT/ZE replacement changes to fully blown 7AGTE project...
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  6. #51
    Spirited Backyard Mechanic Casey-G's Avatar
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    Default Re: 4agze extractors on a 4ag head?

    nah its pretty right, you only lower the compression on a turbocharged engine to get the turbo into its efficiency range at "x" amount of revs ect..

  7. #52
    Your mum is a Conversion King TERRA Operative's Avatar
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    Default Re: 4agze extractors on a 4ag head?

    And to prevent detonation on anything less than race fuel when at decent boost.

  8. #53
    Spirited Backyard Mechanic Casey-G's Avatar
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    Default Re: 4agze extractors on a 4ag head?

    in which.. 14-17psi with the sc14 is really childs play in terms of what they can handle with supporting internals/fueling

  9. #54
    Learner / modder / Backyard Mechanic PrettyCoolWagon's Avatar
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    Default Re: 4agze extractors on a 4ag head?

    Cool guys Thanks

    Good to know...
    4AFE/gearbox issues, 4AGT/ZE replacement changes to fully blown 7AGTE project...
    https://www.facebook.com/gerard.mang...1485304&type=3
    The Corolla 4WD fan club: https://www.facebook.com/Corolla.Ae95.4wd?ref=hl

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