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  1. #1
    dorifto kingu!
    Join Date
    Sep 2007
    Location
    Gloucester
    Posts
    793

    Turbo HP calculator

    Dont know if this is of any use to anyone but ive found this calculator although you do need a fair bit of info. But some one might like it. O and its in inches not mm lol.

    Ray Hall Turbocharging - TurboPower java calcultor

    CA
    Displacement - 1809cc
    Bore - 83mm
    Stroke - 83.6mm
    Compression - 9.5:1(DE) 8.5:1(DET)
    Horsepower - 135 HP @6400RPM(DE) 175 HP @6400RPM(DET)
    Torque - 115 ft/lbs @5200(DE) 166 ft/lbs @4000(DET)
    Average temp - 90
    Specifications for the Red Top SR20DET



    • Displacement: 1998cc (2.0 liter)
    • Cam Type: DOHC 16 valve, chain driven cam sprockets
    • Bore & Stroke 86mm x 86mm
    • Compression: 8.5:1
    • Horsepower: 205ps @ 6000rpm
    • Torque: 203 ft/lbs @ 4000rpm
    • Stock Boost: 7 psi
    • Throttle Body Bore: 60mm
    • Injector Size: 370cc/min
    • Turbo Specs:
    • Compressor: T-25, 60 trim 56mm BCI-1 compressor.
    • Turbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.
    • Center Section: Journal bearings
    • Performance:
      The stock turbo will be safe to 13-15 psi. After that, the turbo is past its efficiency range, and power increases will fall off and are not worth the risk of turbo damage. The engine should produce 230-250 RWHP at safe boost.


    Specifications for the Black Top SR20DET



    • Displacement: 1998cc (2.0 liter)
    • Cam Type: DOHC 16 valve, chain driven cam sprockets
    • Bore & Stroke: 86mm x 86mm
    • Compression: 8.5:1
    • Horsepower: 205hp @ 6000rpm
    • Torque: 203 ft/lbs @ 4000rpm
    • Stock Boost: 7 psi
    • Throttle Body Bore: 60mm
    • Injector Size: 370cc/min
    • Turbo Specs:
    • Compressor: T-25, 60 trim 56mm BCI-1 compressor.
    • Turbine: T-25, 62 trim 53.8mm 0.64 A/R turbine housing.
    • Center Section: Journal bearings
    • Performance:
      The stock turbo will be safe to 13-15 psi. After that, the turbo is past its efficiency range, and power increases will fall off and are not worth the risk of turbo damage. The engine should produce 230-250 RWHP at safe boost.

    Specifications for the S15 Black Top SR20DET
    (Found on the 99+ Silvia)

    • Horsepower: 250ps @ 6000rpm
    • Transmission: 6 Speed, Close Ratio
    • Injector Size: 480cc/min
    • Turbo Specs:
    • Compressor: T-28, 60 trim 60 mm BCI-1 compressor in T-04B housing
    • Turbine: Inconel turbine wheel. Cast divider wall between turbine discharge and wastegate.
    • Center Section: Ball Bearing
    • This engine is expensive and hard to get. If you are on a tight budget, please consider other options as the money you save from buying this engine can be better used to build up a really nice red top.
    • Additions: 6 speed manual transmission. The 6 speed cannot be used on the S13 and S14 motors, and uses a different driveshaft. Speed sensor is located in the differential. The 6 speed is cool, but is not as strong as the 5 speed from the older cars. There is basically 6 gears inside the same housing that was designed to hold 5 gears. This makes the gears smaller and weaker, therby breaking more often.

  2. #2
    dorifto kingu!
    Join Date
    Sep 2007
    Location
    Gloucester
    Posts
    793
    1JZ
    Displacement : 2491cc
    Type : Twin Turbo Inline 6 Cyl
    Valvetrain : Belt driven DOHC, 4 valves per cylinder
    Fuel System : TCCS EFI, Premium Unleaded
    Ignition System : Direct fire ignition
    Combustion Chambers : Pent Roof
    Compression Ratio : 8.5:1
    Bore x Stroke : 86 x 71.5

    Peak Power : 280PS (206 kW) @ 6200rpm
    Peak Torque : 37.0 kgm (268 lb ft, 363 Nm) @ 4800rpm
    Fuel Consumption : 210 g / PS*h @ 2000 rpm

    Dimensions (LxWxH) : 860 x 670 x 665 mm (MTM)
    : 845 x 670 x 665 mm (ATM)
    Weight (complete) : 217kg
    Turbos : CT12A (2x)
    Compressor wheel : 37/54mm
    Turbine wheel : 52/42mm
    Boost : 0.60-0.69kg/cm2 (8.5 - 9.8psi)

 

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