Results 1 to 3 of 3

Thread: Rebuilding a rebuilt 4AGE. . .

  1. #1
    Junior Member Backyard Mechanic
    Join Date
    Jan 2007
    Location
    NSW
    Posts
    340

    Default Rebuilding a rebuilt 4AGE. . .

    Hi . . .

    I'm running a Bigport with Quads that was rebuilt ohhh; say 10-15K km ago.

    I'd like to redo the bottom end with higher compression pistons & would like to know if I need to send the block out to be completely redone (i.e. disassembled / hot-tanked / re-honed / crank re-checked & new bearings installed etc or whether I can get away with a DIY hone (or just drop off block to a Machine shop & request a re-hone).

    PS: Haven't rebuilt a block before but have a stand, a hone and prepared to Google . .

    Would also like opinions regarding OEM V Forged pistons. AFAIK car will stay a road-car but with occasional track work so I don't see the need for Forged pistons. I am leaning towards late 16V / Small-port 10.3: 1 pistons BUT would like to know if there are any other OEM pistons (no larger than 82.0 mm) with higher compression that are compatible with 4AGE.

  2. #2
    Junior Member Domestic Engineer
    Join Date
    Oct 2009
    Location
    NSW
    Posts
    793

    Default Re: Rebuilding a rebuilt 4AGE. . .

    Aftermarket ECU?

    What comp ratio do you want?

  3. #3
    Junior Member Backyard Mechanic
    Join Date
    Jan 2007
    Location
    NSW
    Posts
    340

    Default Re: Rebuilding a rebuilt 4AGE. . .

    Good Question. . .

    Highest feasible on 98 RON I guess. . .

    Will be getting billet rods; ARP rod bolts but retaining cast pistons as car will mainly be used on public roads.

    AFAIK (cast) piston choices for upping compression are either;

    1. OEM Smallport 4AGE 16V
    2. OEM Silvertop 4AGE 20V
    3. OEM Blacktop 4AGE 20V

    Or these. . . ?

    4. http://www.toymods.org.au/forums/thr...ew-4AGE-piston

Similar Threads

  1. Where to get my 4AGE rebuilt in Perth
    By TwinKamm in forum Tech and Conversions
    Replies: 3
    Last Post: 25-07-2012, 10:20 PM
  2. Possible Causes of Leaking Exhaust Valve in rebuilt 4AGE
    By GeeEss in forum Tech and Conversions
    Replies: 19
    Last Post: 27-01-2012, 11:02 AM
  3. Just rebuilt 4age using excessive oil, Rings didn't Bed?
    By wiso in forum Tech and Conversions
    Replies: 34
    Last Post: 21-03-2011, 08:23 PM
  4. rebuilt smallport 4age with pinging issues
    By webby in forum Tech and Conversions
    Replies: 5
    Last Post: 09-02-2010, 12:17 AM
  5. Rebuilt turbo, rebuilt head, motor still smokey!
    By ONCE-NA in forum Tech and Conversions
    Replies: 27
    Last Post: 09-02-2008, 04:46 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •