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Thread: 2.2 Camshaft Profile Specs

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    Question 2.2 Camshaft Profile Specs

    Does anyone know the stock intake & exhaust cam lift & duration?

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    Engine Mechanical Specifications (ECOTec) except that......i say contact comp cams or GM,and ask
    Application Specification
    Metric English
    General Data
    Engine Type
    Inline 4 Cylinder
    Displacement
    2.2 L 134 CID
    RPO
    L61
    Liter (VIN)
    F
    Bore
    85.992-86.008 mm 3.3855-3.3861 in
    Compression Ratio
    10:01
    Balance Shaft
    Bearing Clearance
    0.030-0.063 mm 0.0012-0.0025 in
    Bearing Diameter - Inside - Carrier
    20.050-20.063 mm 0.7894-0.7899 in
    Bearing Diameter - Outside - Carrier
    41.975-41.995 mm 1.6526-1.6534 in
    Bearing Journal Diameter
    20.000-20.020 mm 0.7874-0.7882 in
    Bushing Clearance
    0.033-0.102 mm 0.0013-0.0040 in
    Bushing Diameter - Inside
    36.776-36.825 mm 1.4479-1.4498 in
    Bushing Journal Diameter
    36.723-36.743 mm 1.4458-1.4466 in
    End Play
    0.100-0.300 mm 0.0020-0.0118 in
    Block
    Balance Shaft Bearing Bore Diameter - Carrier
    42.000-42.016 mm 1.6535-1.6542 in
    Balance Shaft Bushing Bore Diameter
    40.763-40.776 mm 1.6048-1.6054 in
    Crankshaft Main Bearing Bore Diameter
    64.068-64.082 mm 2.5224-2.5229 in
    Cylinder Bore Diameter
    85.992-86.008 mm 3.3855-3.3861 in
    Cylinder Bore Out-of-Round - Maximum
    0.010 mm 0.0004 in
    Cylinder Bore Taper - Maximum
    0.010 mm 0.0004 in
    Cylinder Head Deck Surface Flatness - Transverse
    0.030 mm 0.0012 in
    Cylinder Head Deck Surface Flatness - Longitude
    0.050 mm 0.002 in
    Cylinder Head Deck Surface Flatness - Overall
    0.08 mm 0.0031 in
    Camshaft
    Camshaft End Play
    0.040-0.144 mm 0.0016-0.0057 in
    Camshaft Journal Diameter
    26.935-26.960 mm 1.0604-1.0614 in
    Camshaft Thrust Surface
    21.000-21.052 mm 0.8268-0.8252 in
    Connecting Rod
    Connecting Rod Bearing Clearance
    0.029-0.069 mm 0.0011-0.0027 in
    Connecting Rod Bore Diameter - Bearing End
    52.118-52.134 mm 2.0519-2.05252 in
    Connecting Rod Bore Diameter - Pin End
    20.007-20.021 mm 0.7877-0.7882 in
    Connecting Rod Side Clearance
    0.070-0.370 mm 0.0028-0.0146 in
    Connecting Rod Straightness - Bend - Maximum
    0.021 mm 0.0083 in
    Connecting Rod Straightness - Twist - Maximum
    0.04 mm 0.0157 in
    Crankshaft
    Connecting Rod Journal Diameter
    49.000-49.014 mm 1.9291-1.9297 in
    Crankshaft End Play
    0.050-0.380 mm 0.0012-0.0150 in
    Crankshaft Main Bearing Clearance
    0.031-0.067 mm 0.0012-0.0026 in
    Crankshaft Main Journal Diameter
    55.994-56.008 mm 2.2045-2.2050 in
    Cylinder Head
    Surface Flatness - Block Deck - Transverse
    0.030 mm 0.0012 in
    Surface Flatness - Block Deck - Longitude
    0.050 mm 0.002 in
    Surface Flatness - Block Deck - Overall
    0.1 mm 0.004 in
    Valve Guide Bore - Exhaust
    6.000-6.012 mm 0.2362-0.2367 in
    Valve Guide Bore - Intake
    6.000-6.012 mm 0.2362-0.2367 in
    Valve Lifter Bore Diameter - Stationary Lash Adjusters
    12.013-12.037 mm 0.4730-0.4739 in
    Lubrication System
    Oil Pressure - Minimum - [commat]1000 RPM
    344.75-551.60 kPa 50-80 psi
    Piston Rings
    Piston Ring End Gap - First Compression Ring
    0.20-0.40 mm 0.008-0.016 in
    Piston Ring End Gap - Second Compression Ring
    0.35-0.55 mm 0.014-0.022 in
    Piston Ring End Gap - Oil Control Ring - Rails
    0.25-0.76 mm 0.010-0.030 in
    Piston Ring to Groove Clearance - First Compression Ring
    0.04-0.08 mm 0.0015-0.0031 in
    Piston Ring to Groove Clearance - Second Compression Ring
    0.030-0.069 mm 0.0012-0.0027 in
    Piston Ring to Groove Clearance - Oil Control Ring
    0.090-0.106 mm 0.0035-0.0042 in
    Piston Ring Thickness - First Compression Ring
    1.170-1.190 mm 0.0461-0.0469 in
    Piston Ring Thickness - Second Compression Ring
    1.471-1.490 mm 0.0579-0.0587 in
    Piston Ring Thickness - Oil Control Ring - Rail - Maximum
    0.43 mm 0.0169 in
    Piston Ring Thickness - Oil Control Ring - Spacer
    1.574-1.651 mm 0.0620-0.0650 in
    Pistons and Pins
    Piston - Piston Diameter - [commat]14.5 mm up
    85.967-85.982 mm 3.3845-3.3851 in
    Piston - Piston Pin Bore Diameter
    20.002-20.007 mm 0.07875-0.7877 in
    Piston - Piston Ring Grove Width - Top
    1.23-1.25 mm 0.0484-0.0492 in
    Piston - Piston Ring Grove Width - Second
    1.52-1.54 mm 0.0598-0.0606 in
    Piston - Piston Ring Grove Width - Oil Control
    2.52-2.54 mm 0.0992-0.1000 in
    Piston - Piston To Bore Clearance
    0.010-0.041 mm 0.0004-0.0016 in
    Pin - Piston Pin Clearance to Connecting Rod Bore
    0.007-0.026 mm 0.0003-0.0010 in
    Pin - Piston Pin Clearance to Piston Pin Bore
    0.002-0.012 mm 0.0001-0.0005 in
    Pin - Piston Pin Diameter
    19.995-20.000 mm 0.7872-0.7874 in
    Pin - Piston Pin End Play
    0.19-1.16 mm 0.0075-0.0461 in
    Valve System
    Valves - Valve Face Runout - Maximum
    0.04 mm 0.0016 in
    Valves - Valve Seat Runout - Maximum
    0.05 mm 0.0020 in
    Valves - Valve Stem Diameter - Intake
    5.955-5.970 mm 0.2344-0.2355 in
    Valves - Valve Stem Diameter - Exhaust
    5.935-5.950 mm 0.2337-0.2343 in
    Valves - Valve Stem to Guide Clearance - Intake
    0.030-0.057 mm 0.0012-0.0022 in
    Valves - Valve Stem to Guide Clearance - Exhaust
    0.050-0.077 mm 0.0020-0.0026 in
    Valve Lifters - Valve Lifter Diameter - Stationary Lash Adjuster
    11.986-12.000 mm 0.0005-0.0020 in
    Valve Lifters - Valve Lifter-to-Bore Clearance - Stationary Lash Adjuster
    0.013-0.051 mm 3.2210-3.2299 in
    Valve Springs - Valve Spring Load - Closed - [commat]32.5 mm
    245.0-271.0 N. - Eng Spec.
    Valve Springs - Valve Spring Load - Open - [commat]32.5 mm
    525.0-575.0 N. - Eng Spec.
    Last edited by blueiondubv; 11-01-2006 at 10:32 AM.

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    Well as blueion made evident in his cut and paste from the GM service manual Those specs are hard to come by. GM doesnt make them readily available for most models. Your best bet honestly is to contact Comp Cams or someone else who offers cams for the ECOTEC. They should most definitely be able to provide you the stock numbers.
    I know stuff about ECOTECS

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