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Thread: Building a 7age.

  1. #91
    Veteran pen15's Avatar
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    if this helps people i have pics of sump clearances and other 7a related things

    sump to sway bar


    sump to crossmember


    hope this helps anyone with knowing where the sump sits on a 7age setup
    the dyno pull to 300rwkw

    BT20v is making 300rwkw like i said i would without nitrous so now its time for some spray and see if she will run a 10s or less

  • #92
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    re. the headgasket, the 7afe gasket is .6mm and metal but the hole passage for the oil/water are smaller/different design.
    can enlarge the passages but might/will damage or warp the gasket.


    (old 7afe vs new 4age headgasket)
    30kw club

  • #93
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    From what I have read, depending on head gasket used

    Small port pistons = roughly 11.5:1 CR
    standard 7a pistons will result in less than 9:1 CR
    Late ZE pistons just over 9.5:1 CR

    Has anyone used the 4agelc pistons which are 9.4:1 CR normally in a 4ag motor. I would image they would result in about a 10.5:1 CR

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    dont forget the compression ratio also depends on if the builder chooses to deck the block down to the piston or not...
    RIP Carly - a smile to light the world.
    06/07/2011

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    Yes I understand that, but with all things being equal, it would be interesting to see what compression ratio that piston gave compared to all the rest.

  • #96
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    Quote Originally Posted by jimmy19650 View Post
    From what I have read, depending on head gasket used

    Small port pistons = roughly 11.5:1 CR
    standard 7a pistons will result in less than 9:1 CR
    Late ZE pistons just over 9.5:1 CR

    Has anyone used the 4agelc pistons which are 9.4:1 CR normally in a 4ag motor. I would image they would result in about a 10.5:1 CR
    Wondering if anyone has used blacktop 20v pistons and a blacktop 20v head in a 7age?

  • #97
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    my setup does
    4AGE & 7AGE Forged Connecting Rods - Lightweight Flywheels - And Much More



    ^ Clicky clicky!

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    Quote Originally Posted by 70XIN View Post
    my setup does
    what power is your 20v 7ag making ?

    what rods are people using so you can make the 7ag rev a BIT higher ?
    hachi roku

  • #99
    Senior Member s13 james's Avatar
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    i will be using spool rods

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    Quote Originally Posted by dehney View Post
    what power is your 20v 7ag making ?

    what rods are people using so you can make the 7ag rev a BIT higher ?
    most people are using spool or 7oxins rods

    although robbo did use standard 7afe with ARP bolts...

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