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    BF Chassis engine/trans info

    All info straight from the 1988 Factory Service Manual

    B6 SOHC:

    compression ratio: 9.3:1
    idle speed: 850+or-50 RPM
    firing order: 1-3-4-2
    engine oil: dry engine-3.4liter=3.6quarts of 10w-30
    coolent capacity: MTX=5.3q ATX=6.3q
    fuel tank: 12.7 gal.
    plug gap:0.039-0.043

    F-series FWD non-turbo Manual:
    ratios
    first: 3.416
    second: 1.842
    third: 1.290
    fourth: 0.918
    fifth: .731
    reverse: 3.214
    Final: 4.105
    oil type: GL-4 or GL-5 80w-90 or SAE90
    oil capacity: 3.4 q

    G4A-HL 4 speed Auto
    ratios
    first: 2.800
    second: 1.540
    third: 1.000
    overdrive (O/D): 0.700
    reverse: 2.333
    final: 3.842
    oil type: dextronII
    oil capacity: 6.7q


    B6T DOHC:

    compression ratio: 7.9:1
    idle speed: 850 +or- 50 RPM
    firing order: 1-3-4-2
    engine oil: dry engine-3.6liter=3.8quarts of 10w-30
    coolent capacity: 6.3q
    fuel tank:13.2 gal.
    max boost(stock): 8.0-9.2 psi
    wastegate opening press.: 7.0-8.6 psi
    plug gap:0.039-0.043

    G-series fwd turbo:
    ratio
    first: 3.307
    second: 1.833
    third: 1.233
    fourth: 0.970
    fifth: 0.795
    reverse: 3.166
    final: 3.850
    oil type: GL-4 or GL-5 80w-90 or SAE90
    oil capacity: 3.55q

    G-series AWD turbo
    ratio
    first: 3.307
    second: 1.833
    third: 1.233
    fourth: 0.970
    fifth: 0.795
    reverse: 3.166
    final: 4.105
    oil type: GL-4 or GL-5 80w-90 or SAE90
    oil capacity: 3.8q transaxle, 0.53q transfer carrier, 0.69q rear differential

    G-series AWD turbo Group A/N close ratio
    ratio
    first: 3.000
    second: 2.058
    third: 1.565
    fourth: 1.344
    fifth: 1.078
    reverse: 3.166
    final: 4.411
    Last edited by trailrider098; 12-20-2009, 03:39 PM.
    "See that car, in the 80's that car was deadly." Random man to his son while passing the GTX in a parking lot

    Originally posted by neuspeedescort
    the proper spelling would be "Launchabilitiness" i do believe.
    -88' Mazda 323 GTX, 1.8t, Modified Magazine May 2012
    -88' Mazda 323 GTX, caged and ready for dirt
    -93' Mazda Miata, half caged
    -09' Mercedes C63 AMG
    -87' Toyota Land Cruiser, 33's with slight lift, safari style!
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