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Thread: xM Series Engine Variants

  1. #16
    Forum Member 1st year Apprentice
    Join Date
    Jun 2008
    Location
    victoria
    Posts
    13

    Default Re: xM Series Engine Variants




    Power:
    306.9rwkw @ 16psi (with boost leaks)

    Engine model and generation:
    MA71 Supra 7M-GTE (89+)

    Top End Modifications:
    Rebuilt head
    3 angle valve grind
    brain crower valve springs
    reshimmed
    stock cams
    Cometic MLS 74thou headgasket
    arp studs @ 80ft/lb using the correct lubricant

    Bottom end modifications:
    Stock block rebuilt
    shot peen'd rods
    new cast pistons
    precision balance
    arp mains bolts
    arp conrod bolts

    Forced induction:
    T61 turbo
    gizzmo msibc boost controller

    Management:
    Haltech e6x
    Haltech tripple channel ignitor
    Stock coils
    ngk coppers @ 28thou gap
    walbro gss341 fuel pump
    drilled J pipe

    Fuel used
    BP Ultimate

    Intake:
    600x300x80 front mount

    Exhaust:
    3" turbo back, 2 straight through mufflers
    3" magna flow cat

    Driveline:
    W58
    exedy HD cushioned button clutch
    4.3 LSD
    __________________
    Mk3 Supra - 7mgte, Haltech, T61 - 411rwhp @ 16psi

  2. #17
    Forum Contributor Domestic Engineer
    Join Date
    Dec 2005
    Location
    Victoria
    Posts
    543

    Default Re: xM Series Engine Variants

    Engine model and generation:
    MA71 7MGTE- Late model block, early crank.

    Top End Modifications:
    Rebuilt head with match ported stock manifolds, light clean up of ports, and (andrew_mx83) adjustable cam gears.

    Bottom end modifications:
    Rebuilt with 0.5mm Probe forged pistons (final comp 8.6:1 IIRC) cometic HG.

    Management:
    Adaptronic with ECU controlled boost.

    Fuel used:
    98RON.

    Forced Induction:
    ETS Highflow CT26 with T04B V trim wheel.

    Intake:
    Enclosed pod filter, with cold air feed, Group A supra cooler and 2.5" pipework, aftermarket ( non leaking ) BOV.

    Exhaust:
    2.75" divorced dump pipe, with wastegate pipe joining about 15" down stream, 3" system with cat and straight through muffler.

    Driveline:
    R154 man, excedy HD press plate with organic disk.

    254kw & PSI 001.jpg
    254kw & AFR 001.jpg

    Green is previous best with with cams set to zero, and the wastegate control running out of duty cycle so hence boost tapering off up high.
    Red is with exhaust cam retarded 4 deg, and no changes to boost control, with the boost naturally holding better in upper RPM. More fuel added due to wanting to ping slightly, and if ignition advance removed, power dropped.

  3. #18
    Forum Member 1st year Apprentice
    Join Date
    Jun 2011
    Location
    ACT
    Posts
    12

    Default Re: xM Series Engine Variants



    Engine model and generation:
    7M-GTE 1989 in MA70 (210,000km)

    Top End Modifications:
    OEM Headgasket and Aisin bolts

    Bottom end modifications:
    None

    Forced induction:
    Stock CT26
    Running 10psi via manual bleed valve

    Management:
    Stock Factory ECU

    Fuel used
    Shell V-Power

    Intake:
    M's K&N filter

    Exhaust:
    3" From turbo-back

    Driveline:
    R154
    Supra 3.7:1 LSD

  4. #19
    Forum Member 1st year Apprentice
    Join Date
    Jun 2011
    Location
    ACT
    Posts
    12

    Default Re: xM Series Engine Variants



    Engine model and generation:
    7M-GTE

    Top End Modifications:
    Rebuilt Head with ARP studs and Cometic MLS

    Bottom end modifications:
    83.5mm Probe forged pistons, Eagle rods

    Forced induction:
    57 Trim CT26
    Running 16psi via Blitz Dual SBC

    Management:
    Stock Factory ECU with 550cc Injectors, Lex AFM, AFPR, Walbro 255

    Fuel used
    Shell V-Power

    Intake:
    Simota filter

    Exhaust:
    3" recirculating downpipe, 3" cat-back

    Driveline:
    R154
    Supra 3.7:1 LSD
    Black MA70 Supra, built 7M - 247.9 rwkw

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