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Thread: The Mazda (RA13S) Roadpacer AP

  1. #1
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    The Mazda (RA13S) Roadpacer AP

    Another rare one from the Mazda Rotary vault is the Roadpacer AP with only 800 made from 1975~77. It was based on the Holden HJ Premier sedan from Australia and powered by the venerable 13B...

  2. #2
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    Re: The Mazda (RA13S) Roadpacer AP

    RA13S Specs:

    Make: Mazda
    Model: Roadpacer AP
    Chassis-code: C-RA13S
    Year(s)-produced: 1975~77
    Total-production: 800
    Model-type: Type-U (5-seater)/Type-V (6-seater)
    Options: A/C, P/S, P/W, P/L, P/M, Trunk Cooler
    Body-style: 4-door sedan
    Body-length: 4850 mm
    Body-width: 1885 mm
    Body-height: 1465 mm
    Wheelbase: 2830 mm
    Front-track: 1530 mm
    Rear-track: 1530 mm
    Ground-clearance: 180 mm
    Curb-weight: 1565 kg (Type-V)/1575 kg (Type-U)

    Engine-code: 13B (REAPS)
    Engine-type: twin-rotor Wankel
    Engine-dimensions: 622x637x670 mm
    Engine-weight: 158 kg
    Combustion chamber volume: 654 cc x 2
    Displacement: 1308 cc
    Compression-ratio: 9.4:1
    Compression-pressure: 9.0 kg/cm2 @ 280 rpm
    Operating oil pressure: 11.0 kg/cm2
    Induction: single 4-bbl downdraft Hitachi carburettor (KCH348)
    Ignition: single distributor (twin-points)
    Firing-order: 1-2
    Max.power: 135 ps @ 6500 rpm
    Max.torque: 137 lb-ft (19.0 kg-m) @ 4000 rpm
    Port-timing: Intake opening @ 32 deg ATDC
    Intake closing @ 40 deg ABDC
    Exhaust opening @ 71 deg BBDC
    Exhaust closing @ 48 deg ATDC
    Oil-capacity: 6.3 l
    Coolant-capacity: 10.2 l
    Thermostat-type: wax (opening temp 88 +/- 1.5 deg C and fully open @ 100 deg C)
    Point-gap: 0.45 +/- 0.05 mm
    Dwell-angle: 58 deg +/- 3 deg
    Idle-speed: 720 +/- 20 rpm
    Ignition-timing: 20 deg BTDC (Leading) @ 720 rpm
    5 deg BTDC (Trailing) @ 720 rpm
    Capacitor-value: 0.27 +/- 10% microfarads
    Plug-type: NGK BR6EM or BR7EM
    Plug-gap: 0.85~0.95 mm
    Electrical: 12v w/NS40Z 35Ah or NS60 45Ah battery
    Starter-type: M004T16371 (2.0kw)
    Alternator-type: AH2063T (12v-63A)

    Drive-layout: front mounted engine (longitudinal)/rear-wheel-drive
    Transmission: 3-speed automatic transmission (JATCO)
    Gear-ratios: 1st-2.458:1
    2nd-1.458:1
    3rd-1.000:1
    Rev-2.181:1
    Final-4.444:1 (9T pinion/40T crown-wheel)
    Diff-capacity: 1.4 l (SAE 90 GL-5)
    Suspension: front-double wishbones, coil-springs, sway-bar and shocks
    rear-4 link w/coil-springs and shocks
    Vehicle height from fender center line: front-390 mm/rear-373 mm
    Brakes: front-disc (drums were also available) (servo-assisted)
    rear-drum w/leading and trailing shoes (servo-assisted)
    Handbrake adj.: 5~7 notches (self-adjusting)
    Brake master dia.: 1"
    Servo dia.: 10.5"
    Front wheel caliper piston dia.: 2-5/8"
    Rear wheel cyl dia.: 7/8"
    Stopping distance: 14.0 m from 50 km/h
    Steering: worm & roller (power-assisted)
    P/S fluid: ATF Type-F
    P/S capacity: 1.1 l
    Steering-ratio: 17.5:1~11.0:1
    Turning-radius: 5.7 m
    Caster trail: 1.00 mm
    Side-slip: 0 +/- 3.00 mm
    Toe: 3 +/- 3.00 mm
    Steering wheel dia.: 406 mm
    Tire-size: 7.50-14-4PR or F78-14-4PR (1.6 kg/cm2)
    Rim-size: 5JJx14WDC
    Fuel tank capacity: 75 l
    Top speed: 103 mph (165 km/h)

  3. #3
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    Re: The Mazda (RA13S) Roadpacer AP

    Some pics of the RA13S...



  4. #4
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    Re: The Mazda (RA13S) Roadpacer AP

    .

  5. #5
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    Re: The Mazda (RA13S) Roadpacer AP

    A few more shots of the RA13S...







  6. #6
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    Re: The Mazda (RA13S) Roadpacer AP

    Here's some close up pics of the black Roadpacer Type-U from wasabi's vids...

















  7. #7
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    Re: The Mazda (RA13S) Roadpacer AP

    Yes i am Dave haha :lol:

  8. #8
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    Re: The Mazda (RA13S) Roadpacer AP

    one of these for sale in new zealand at the moment

    http://www.trademe.co.nz/motors/used-ca ... 500286.htm

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