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V6 Camshaft Specifications

Discussion in 'V6 Development And Modification' started by beardy91, Nov 8, 2007.

  1. beardy91

    beardy91 New Member

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    If you are looking for camshaft specifications for the V6 here they are:

    Standard Camshaft Timings for the early VN Series 1 V6 Engine:

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 22.4 degrees BTDC
    Inlet Closes - 66.9 degrees ABDC
    Exhaust Opens - 70.7 degrees BBDC
    Exhaust Closes - 26.2 degrees ATDC
    Inlet Valve Duration - 269.3 degrees
    Exhaust Valve Duration - 276.9 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4376 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4373 inches
    Inlet Valve Lift at TDC - 0.0336 inches

    0.050 Valve Timing
    Inlet Opens - minus 15.3 degrees BTDC (15.3 degrees ATDC)
    Inlet Closes - 29.2 degrees ABDC
    Exhaust Opens - 30.4 degrees BBDC
    Exhaust Closes - minus 14.2 degrees ATDC (14.2 degrees BTDC)
    Inlet Valve Duration - 193.9 degrees
    Exhaust Valve Duration - 196.2 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4376 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4373 inches
    Ramp Rate - 2.13
    Valve Overlap Seat to Seat - 48.6 degrees
    Valve Overlap at 0.050 inches - minus 29.5 degrees
    Inlet Lobe Centreline - 112.2 degrees
    Exhaust Lobe Centreline - 112.3 degrees
    Lobe Separation Angle - 112.3 degrees
    --------------------------------------------------------------------------
    Standard Cam Timings for the late VN-VP-VR-early VS Series Two V6 Engine:

    Advertised Valve Timing at height - 0.008 inches
    Inlet Opens - 9.8 degrees BTDC
    Inlet Closes - 52.1 degrees ABDC
    Exhaust Opens - 56.8 degrees BBDC
    Exhaust Closes - 14.5 degrees ATDC
    Inlet Valve Duration - 241.9 degrees
    Exhaust Valve Duration - 251.3 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4066 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4083 inches
    Inlet Valve Lift at TDC - 0.0256 inches

    0.050 Valve Timing
    Inlet Opens - minus 20.9 degrees BTDC (20.9 degrees ATDC)
    Inlet Closes - 21.4 degrees ABDC
    Exhaust Opens - 26.1 degrees BBDC
    Exhaust Closes - minus 16.2 degrees ATDC (16.2 degrees BTDC)
    Inlet Valve Duration - 180.5 degrees
    Exhaust Valve Duration - 189.9 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4066 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4083 inches
    Ramp Rate - 2.27
    Valve Overlap Seat to Seat - 24.3 degrees
    Valve Overlap at 0.050 inches - minus 37.1 degrees
    Inlet Lobe Centreline - 111.1 degrees
    Exhaust Lobe Centreline - 111.2 degrees
    Lobe Separation Angle - 111.2 degrees
    --------------------------------------------------------------------------
    Standard Valve Timing for the LateVS-VT-VX-VY EcoTech V6 Engine:

    Advertised Valve Lift at height - 0.006 inches
    Inlet Opens - 6.7 degrees BTDC
    Inlet Closes - 57.0 degrees ABDC
    Exhaust Opens - 65.3 degrees BBDC
    Exhaust Closes - 15.1 degrees ATDC
    Inlet Valve Duration - 243.7 degrees
    Exhaust Valve Duration - 260.4 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4099 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4112 inches
    Inlet Valve Lift at TDC - 0.0208 inches

    0.050 Valve Timing
    Inlet Opens - minus 24.4 degrees BTDC (24.4 degrees ATDC)
    Inlet Closes - 25.8 degrees ABDC
    Exhaust Opens - 31.6 degrees BBDC
    Exhaust Closes - minus 18.7 degrees ATDC (18.7 degrees BTDC)
    Inlet Valve Duration - 181.4 degrees
    Exhaust Valve Duration - 192.9 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4099 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4112 inches
    Ramp Rate - 2.22
    Valve Overlap Seat to Seat - 21.8 degres
    Valve Overlap at 0.050 inches - minus 43.1 degrees
    Inlet Lobe Centreline - 115.2 degrees
    Exhaust Lobe Centreline - 115.1 degrees
    Lobe Separation Angle - 115.1 degrees

    I hope all of these cam timings are of help to you all and they will be invaluable when comparing an aftermarket camshaft to the standard one that Holden used originally in these engines.
     
    Last edited: Nov 19, 2007
  2. Spaced

    Spaced New Member

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    Sticky please?
     
  3. AWETZM

    AWETZM New Member

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    Nice work - definitely worth a sticky.
     
  4. beardy91

    beardy91 New Member

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    If you are looking for some aftermarket camshaft specifications for the EcoTech engine then here are some that I have come across:

    Crow Cams Part Number 8531562RH
    Power Range - 1800rpm to 6000rpm
    Mild performance cam for standard engines. Needs exhaust system.

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 22 degrees BTDC
    Inlet Closes - 64 degrees ABDC
    Exhaust Opens - 70 degrees BBDC
    Exhaust Closes - 20 degrees ATDC
    Inlet Duration - 266 degrees
    Exhaust Duration - 270 Degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4400 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4400 inches
    Inlet Valve Lift for #1 Cylinder Intake Valve at TDC - 0.0528 inches

    0.050 Valve Timing
    Inlet Opens - minus 10 degrees BTDC (10 degrees ATDC)
    Inlet Closes - 32 degrees ABDC
    Exhaust Opens - 38 degrees BBDC
    Exhaust Closes - minus 12 degrees ATDC (12 degrees BTDC)
    Inlet Valve Duration - 201 degrees
    Exhaust Valve Duration - 206 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4400 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4400 inches
    Ramp Rate - 2.29
    Valve Overlap Seat to Seat - 42 degrees
    Valve Overlap at 0.050 inches - minus 22 degrees
    Inlet Lobe Centreline - 111 degrees
    Exhaust Lobe Centreline - 115 degrees
    Lobe Separation Angle - 113 degrees

    Recommended Valve Train Components
    Valve Springs - 4236
    Valve Spring Retainers - 10707-12
    Valve Collets - 10701-12
    Valve Spring Installed Height - 1.780 inches
    Valve Spring Installed Pressure - 110 lbs
    Valve Spring Pressure @ 0.500 inches 260 lbs
    Valve Spring Maximum Lift - 0.550 inches
    Valve Spring Solid Height - 1.090 inches
    H/D Timing Set - CS6VS
    Pushrods - Standard EcoTech Pushrods
    or Pushrods - PR-605 Standard Pushrods EcoTech V6
    or Pushrods - PR5705 - Race Pushrods EcoTech V6
    Lifters - Standard Roller Lifters
    --------------------------------------------------------------------------
    Crow Cams Part Number 8531371RH L/C 110 Custom Grind

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 34 degrees BTDC
    Inlet Closes - 72 degrees ABDC
    Exhaust Opens - 74 degrees BBDC
    Exhaust Closes - 32 degrees ATDC
    Inlet Valve Duration - 286 degrees
    Exhaust Valve Duration - 286 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4992 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4992 inches
    Inlet Valve Lift for #1 Cylinder Intake Valve at TDC - 0.0848 inches

    0.050 Valve Timing
    Inlet Opens - minus 1 degrees BTDC (1 degree ATDC)
    Inlet Closes - 37 degrees ABDC
    Exhaust Opens - 39 degrees BBDC
    Exhaust Closes - minus 3 degrees ATDC (3 degrees BTDC)
    Inlet Valve Duration - 216 degrees
    Exhaust Valve Duration - 216 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.4992 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.4992 inches
    Ramp Rate - 2.37
    Valve Overlap Seat to Seat - 66 degrees
    Valve Overlap at 0.050 inches - minus 4 degrees
    Intake Lobe Centreline - 109 degrees
    Exhaust Lobe Centreline - 111 degrees
    Lobe Separation Angle - 110 degrees

    Recommended Valve Train Components Part Numbers
    Valve Springs - 4918
    Valve Spring Retainers - 10707
    Valve Collets - 10701 : 7 degrees
    Valve Spring Installed Height - 1.780 inches
    H/D Timing Set - CSCS6VS
    Pushrods - Standard Pushrods
    or Pushrods - PR-605 Standard Pushrods EcoTech V6
    or Pushrods - PR5705 - Race Pushrods EcoTech V6
    Lifters - Standard Roller Lifters

    Tuning Notes - With 110 degrees Lobe Separation Angle this would need an aftermarket computer or a memcal with a suitable tune to suit this camshaft. If you can only use the factory computer we can grind the cam to 114 degrees Lobe Separation Angle which would be easier to tune.
    _________________________________________________________________

    Crow Cams Part Number 8531528RH

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 35 degrees BTDC
    Inlet Closes - 71 degrees ABDC
    Exhaust Opens - 78 degrees BBDC
    Exhaust Closes - 34 degrees ATDC
    Inlet Valve Duration - 286 degrees
    Exhaust Valve Duration - 293 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.5115 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.5139 inches
    Inlet Valve Lift for #1 Cylinder InTake Valve at TDC - 0.104 inches

    0.050 Valve Timing
    Inlet Opens - 5 degrees BTDC
    Inlet Closes - 41 degrees ABDC
    Exhaust Opens - 48 degrees BBDC
    Exhaust Closes - 4 degrees ATDC
    Inlet Valve Duration - 226 degrees
    Exhaust Valve Duration - 232 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.5115 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.5139 inches
    Ramp Rate - 2.56
    Valve Overlap Seat to Seat - 69 degrees
    Valve Overlap at 0.050 inches - 9 degrees
    Inlet Lobe Centreline - 108 degrees
    Exhaust Lobe Centreline - 112 degrees
    Lobe Separation Angle - 110 degrees

    Recommended Valve Train Components
    Valve Springs - 4918
    Valve Spring Retainers - 10707
    Valve Collets - 10701 : 7 degrees
    Valve Spring Installed Height - 1.780 inches
    H/D Timing Set - CSCS6VS
    Pushrods - Standard Pushrods EcoTech V6
    or Pushrods - PR-605 Standard Pushrods EcoTech V6
    or Pushrods - PR5705 Race Pushrods EcoTech V6
    Lifters - Standard Roller Lifters

    Tuning Notes - With 110 Lobe Separation Angle this would need an aftermarket computer or a memcal with a suitable tune to suit this camshaft. If you can only use the factory computer we can grind the cam to 114 degrees Lobe Separation Angle which would be easier to tune.
    _________________________________________________________________

    C.O.M.E. Racing Cams Grind Number CSBR-523

    Advertised Valve Timing
    Inlet Valve Opens - 35 degrees BTDC
    Inlet Valve Closes - 71 degrees ABDC
    Exhaust Valve Opens - 86 degrees BBDC
    Exhaust Valve Closes - 32 degrees ATDC
    Inlet Valve Duration - 286 degrees
    Exhaust Valve Duration - 298 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.5072 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.5328 inches
    Intake Valve Lift for #1 Cylinder Intake Valve at TDC - 0.1008 inches

    0.050 Valve Timing
    Intake Opens - 3.1 degrees BTDC
    Intake Closes - 39.1 degrees ATDC
    Exhaust Opens - 53.1 degrees BBDC
    Exhaust Closes - minus 0.9 degrees ATDC (0.9 degrees BTDC)
    Inlet Valve Duration - 222.2 degrees
    Exhaust Valve Duration - 232.2 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.5072 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.5328 inches
    Ramp Rate - 2.50
    Valve Overlap Seat to Seat - 67 degrees
    Valve Overlap at 0.050 inches - 2.2 degrees
    Lobe Separation Angle - 112.5 degrees
    Intake Lobe Centreline - 108 degrees
    Exhaust Lobe Centreline - 117 degrees
    Valve Spring Pressures - Seat : 125 lbs
    Valve Spring Pressures - Open : 320 lbs
    _________________________________________________________________

    I hope these will be of use to you all.
     
    Last edited: Nov 19, 2007
  5. beardy91

    beardy91 New Member

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    Another lot of cam specifications. This time from Tighe Cams:

    Tighe Cams Profile Number 1021

    Advertised Valve Timing at height - 0.006 inches
    Inlet Valve Duration - 252 degrees
    Exhaust Valve Duration - 263 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.405 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.405 inches

    0.050 Valve Timing
    Inlet Valve Duration - 198 degrees
    Exhaust Valve Duration - 218 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.405 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.405 inches
    _________________________________________________________________

    Tighe Cams Profile Number 972C

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 15 degrees BTDC
    Inlet Closes - 55 degrees ABDC
    Exhaust Opens - 60 degrees BBDC
    Exhaust Closes - 10 degrees ATDC
    Inlet Valve Duration - 250 degrees
    Exhaust Valve Duration - 250 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.465 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.465 inches

    0.050 Valve Timing
    Inlet Opens - minus 9 degrees BTDC (9 degrees ATDC)
    Inlet Closes - 31 degrees ABDC
    Exhaust Opens - 36 degrees BBDC
    Exhaust Closes - minus 14 degrees ATDC (14 degrees BTDC)
    Inlet Valve Duration - 202 degrees
    Exhaust Valve Duration - 202 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.465 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.465 inches
    Ramp Rate - 2.76
    Valve Overlap Seat to Seat - 25 degrees
    Valve Overlap at 0.050 inches - minus 23 degrees
    Inlet Lobe Centreline - 110 degrees
    Exhaust Lobe Centreline - 115 degrees
    Lobe Separation Angle - 112.5 degrees
    _________________________________________________________________

    Tighe Cams Profile Number 753C

    Power Range - 2300 rpm to 6500 rpm

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 28 degrees BTDC
    Inlet Closes - 60 degrees ABDC
    Exhaust Opens - 68 degrees BBDC
    Exhaust Closes - 20 degrees ATDC
    Inlet Valve Duration - 268 degrees
    Exhaust Valve Duration - 268 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.525 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.525 inches

    0.050 Valve Timing
    Inlet Opens - 5 degrees BTDC
    Inlet Closes - 39 degrees ABDC
    Exhaust Opens - 47 degrees BBDC
    Exhaust Closes - minus 3 degrees ATDC (3 degrees BTDC)
    Inlet Valve Duration - 224 degrees
    Exhaust Valve Duration - 224 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.525 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.525 inches
    Ramp Rate - 3.14
    Valve Overlap Seat to Seat - 48 degrees
    Valve Overlap at 0.050 inches - 2 degrees
    Inlet Lobe Centreline - 106 degrees
    Exhaust Lobe Centreline - 114 degrees
    Lobe Separation Angle - 110 degrees
    _________________________________________________________________

    Tighe Cams Profile Number 669

    Advertised Valve Timings at height - 0.006 inches
    Inlet Opens - 25 degrees BTDC
    Inlet Closes - 65 degrees ABDC
    Exhaust Opens - 65 degrees BBDC
    Exhaust Closes - 25 degrees ATDC
    Inlet Valve Duration - 270 degrees
    Exhaust Valve Duration - 270 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.420 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.420 inches

    0.050 Valve Timing
    Inlet Opens - 6.5 degrees BTDC
    Inlet Closes - 46.5 degrees ABDC
    Exhaust Opens - 46.5 degrees BBDC
    Exhaust Closes - 6.5 degrees ATDC
    Inlet Valve Duration - 233 degrees
    Exhaust Valve Duration - 233 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.420 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.420 inches
    Ramp Rate - 2.74
    Valve Overlap Seat to Seat - 50 degrees
    Valve Overlap at 0.050 inches - 13 degrees
    Inlet Lobe Centreline - 110 degrees
    Exhaust Lobe Centreline - 110 degrees
    Lobe Separation Angle - 110 degrees
    _________________________________________________________________

    Tighe Cams Profile Number 953A

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 35 degrees BTDC
    Inlet Closes - 75 degrees ABDC
    Exhaust Opens - 70 degrees BBDC
    Exhaust Closes - 40 degrees ATDC
    Inlet Valve Duration - 290 degrees
    Exhaust Valve Duration - 290 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.575 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.575 inches

    0.050 Valve Timing
    Inlet Opens - 15 degrees BTDC
    Inlet Closes - 55 degrees ABDC
    Exhaust Opens - 50 degrees BBDC
    Exhaust Closes - 20 degrees ATDC
    Inlet Valve Duration - 250 degrees
    Exhaust Valve Duration - 250 degrees
    Inlet Valve lift with 1.5 to 1 ratio rockers - 0.575 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.575 inches
    Ramp Rate - 3.50
    Valve Overlap Seat to Seat - 75 degrees
    Valve Overlap at 0.050 inches - 35 degrees
    Inlet Lobe Centreline - 110 degrees
    Exhaust Lobe Centreline - 105 degrees
    Lobe Separation Angle - 107.5 degrees
    _________________________________________________________________

    Tighe Cams Profile Number 866C

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 41 degrees BTDC
    Inlet Closes - 79 degrees ABDC
    Exhaust Opens - 78 degrees BBDC
    Exhaust Closes - 42 degrees ATDC
    Inlet Valve Duration - 300 degrees
    Ehaust Valve Duration - 300 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.525 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.525 inches

    0.050 Valve Timing
    Inlet Opens - 21 degrees BTDC
    Inlet Closes - 59 degrees ABDC
    Exhaust Opens - 58 degrees BBDC
    Exhaust Closes - 22 degrees ATDC
    Inlet Valve Duration - 260 degrees
    Exhaust Valve Duration - 260 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.525 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.525 inches
    Ramp Rate - 3.11
    Valve Overlap Seat to Seat - 83 degrees
    Valve Overlap at 0.050 inches - 43 degrees
    Inlet Lobe Centreline - 109 degrees
    Exhaust Lobe Centreline - 108 degrees
    Lobe Separation Angle - 108.5 degrees
    _________________________________________________________________

    Tighe Cams Profile Number 669C

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 45 degrees BTDC
    Inlet Closes - 77 degrees ABDC
    Exhaust Opens - 80 degrees BBDC
    Exhaust Closes - 42 degrees ATDC
    Inlet Valve Duration - 302 degrees
    Exhaust Valve Duration - 302 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.440 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.440 inches

    0.050 Valve Timing
    Inlet Opens - 29 degrees BTDC
    Inlet Closes - 61 degrees ABDC
    Exhaust Opens - 64 degrees BBDC
    Exhaust Closes - 26 degrees ATDC
    Inlet Valve Duration - 270 degrees
    Exhaust Valve Duration - 270 degrees
    Inlet Valve Lift with 1.5 to 1 ratio rockers - 0.440 inches
    Exhaust Valve Lift with 1.5 to 1 ratio rockers - 0.440 inches
    Ramp Rate - 2.90
    Valve Overlap Seat to Seat - 87 degrees
    Valve Overlap at 0.050 inches - 55 degrees
    Inlet Lobe Centreline - 106 degrees
    Exhaust Lobe Centreline - 109 degrees
    Lobe Separation Angle - 107.5 degrees
    _________________________________________________________________

    This information is straight off Tighe Cams website at tighecams.com.au

    I hope this is of help to you all.
     
    Last edited: Nov 19, 2007
  6. GTP 85

    GTP 85 291 hp @ the wheels

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    So early VS ecotec stock cam specs are different to the late VS ones? i didnt know that?.. Would this affect the power much?
     
  7. beardy91

    beardy91 New Member

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    The early VS had the Series Two engine in them like the late VP's and all the VR's. Only the late VS's had the EcoTech engine in them.
     
  8. beardy91

    beardy91 New Member

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    Another lot of Camshaft Specifications, this time from Wade Cams:

    Wade Cams Profile Number 1250

    Smooth Idle, good torque, suit gas

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 23 degrees BTDC
    Inlet Closes - 67 degrees ABDC
    Exhaust Opens - 63 degrees BBDC
    Exhaust Closes - 27 degrees ATDC
    Inlet Valve Duration - 270 degrees
    Exhaust Valve Duration - 270 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.450 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.450 inches

    0.050 Valve Timing
    Inlet Opens - minus 9.5 degrees BTDC (9.5 degrees ATDC)
    Inlet Closes - 34.5 degrees ABDC
    Exhaust Opens - 30.5 degrees BBDC
    Exhaust Closes - minus 5.5 degrees ATDC (5.5 degrees BTDC)
    Inlet Valve Duration - 205 degrees
    Exhaust Valve Duration - 205 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.450 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.450 inches
    Ramp Rate - 2.31
    Valve Overlap Seat to Seat - 50 degrees
    Valve Overlap at 0.050 inches - minus 15 degrees
    Inlet Lobe Centreline - 112 degrees
    Exhaust Lobe Centreline - 108 degrees
    Lobe Separation Angle - 110 degrees
    _________________________________________________________________

    Wade Cams Profile Number 992a

    Good Idle, low to midrange power increase, needs chip

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 25 degrees BTDC
    Inlet Closes - 71 degrees ABDC
    Exhaust Opens - 69 degrees BBDC
    Exhaust Closes - 27 degrees ATDC
    Inlet Valve Duration - 276 degrees
    Exhaust Valve Duration - 276 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.472 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.472 inches

    0.050 Valve Timing
    Inlet Opens - minus 6 degrees BTDC (6 degrees ATDC)
    Inlet Closes - 40 degrees ABDC
    Exhaust Opens - 38 degrees BBDC
    Exhaust Closes - minus 4 degrees ATDC (4 degrees BTDC)
    Inlet Valve Duration - 214 degrees
    Exhaust Valve Duration - 214 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.472 inches
    Exhaust Valve Duration with 1.6 to 1 ratio rockers - 0.472 inches
    Valve Overlap Seat to Seat - 52 degrees
    Valve Overlap at 0.050 inches - minus 10 degrees
    Inlet Lobe Centreline - 113 degrees
    Exhaust Lobe Centreline - 111 degrees
    Lobe Separation Angle - 112 degrees
    _________________________________________________________________

    Wade Cams Profile Number 1114a

    Midrange to top end, mod chip, exhaust etc

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 29 degrees BTDC
    Inlet Closes - 67 degrees ABDC
    Exhaust Opens - 69 degrees BBDC
    Exhaust Closes - 27 degrees ATDC
    Inlet Valve Duration - 276 degrees
    Exhaust Valve Duration - 276 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.493 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.493 inches

    0.050 Valve Timing
    Inlet Opens - 1 degree BTDC
    Inlet Closes - 39 degrees ABDC
    Exhaust Opens - 41 degrees BBDC
    Exhaust Closes - minus 1 degree ATDC (1 degree BTDC)
    Inlet Valve Duration - 220 degrees
    Exhaust Valve Duration - 220 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.493 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.493 inches
    Valve Overlap Seat to Seat - 56 degrees
    Valve Overlap at 0.050 inches - 0 degrees
    Inlet Lobe Centreline - 109 degrees
    Exhaust Lobe Centreline - 111 degrees
    Lobe Separation Angle - 110 degrees
    _________________________________________________________________

    Wade Cams Profile Number 1365a

    Needs more compression, suit speedway

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 34 degrees BTDC
    Inlet Closes - 64 degrees ABDC
    Exhaust Opens - 74 degrees BBDC
    Exhaust Closes - 28 degrees ATDC
    Inlet Valve Duration - 278 degrees
    Exhaust Valve Duration - 282 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.500 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.500 inches

    0.050 Valve Timing
    Inlet Opens - 9 degrees BTDC
    Inlet Closes - 39 degrees ABDC
    Exhaust Opens - 49 degrees BBDC
    Exhaust Closes - 3 degrees ATDC
    Inlet Valve Duration - 228 degrees
    Exhaust Valve Duration - 232 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.500 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.500 inches
    Ramp Rate - 2.70
    Valve Overlap Seat to Seat - 62 degrees
    Valve Overlap at 0.050 inches - 12 degrees
    Inlet Lobe Centreline - 105 degrees
    Exhaust Lobe Centreline - 113 degrees
    Lobe Separation Angle - 109 degrees
    _________________________________________________________________

    Wade Cams Profile Number 686a
    (Note: SOLID ROLLER CAM NOT HYDRAULIC ROLLER CAM)

    Midrange to top end, needs springs.

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 38 degrees BTDC
    Inlet Closes - 70 degrees ABDC
    Exhaust Opens - 74 degrees BBDC
    Exhaust Closes - 34 degrees ATDC
    Inlet Valve Duration - 288 degrees
    Exhaust Valve Duration - 288 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.509 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.509 inches

    0.050 Valve Timing
    Inlet Opens - 10 degrees BTDC
    Inlet Closes - 42 degrees ABDC
    Exhaust Opens - 46 degrees BBDC
    Exhaust Closes - 6 degrees ATDC
    Inlet Valve Duration - 232 degrees
    Exhaust Valve Duration - 232 degrees
    Inlet Valve Clearance - 0.025 inches
    Exhaust Valve Clearance - 0.025 inches
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.509 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.509 inches
    Ramp Rate - 2.62
    Valve Overlap Seat to Seat - 72 degrees
    Valve Overlap at 0.050 inches - 16 degrees
    Inlet Lobe Centreline - 106 degrees
    Exhaust Lobe Centreline - 110 degrees
    Lobe Separation Angle - 108 degrees
    _________________________________________________________________

    Wade Cams Profile Number 1058a
    (Note: SOLID ROLLER CAM NOT HYDRAULIC ROLLER CAM)

    Formula Holden full mod engine

    Advertised Valve Timing at height - 0.006 inches
    Inlet Opens - 50 degrees BTDC
    Inlet Closes - 78 degrees ABDC
    Exhaust Opens - 82 degrees BBDC
    Exhaust Closes - 46 degrees ATDC
    Inlet Valve Duration - 308 degrees
    Exhaust Valve Duration - 308 degrees
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.525 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.525 inches

    0.050 Valve Timing
    Inlet Opens - 25 degrees BTDC
    Inlet Closes - 53 Degrees ABDC
    Exhaust Opens - 57 degrees BBDC
    Exhaust Closes - 21 degrees ATDC
    Inlet Valve Duration - 258 degrees
    Exhaust Valve Duration - 258 degrees
    Inlet Valve Clearance - 0.019 inches
    Exhaust Valve Clearance - 0.019 inches
    Inlet Valve Lift with 1.6 to 1 ratio rockers - 0.525 inches
    Exhaust Valve Lift with 1.6 to 1 ratio rockers - 0.525 inches
    Ramp Rate - 2.75
    Valve Overlap Seat to Seat - 96 degrees
    Valve Overlap at 0.050 inches - 46 degrees
    Inlet Lobe Centreline - 104 degrees
    Exhaust Lobe Centreline - 108 degrees
    Lobe Separation Angle - 106 degrees
    _________________________________________________________________
    These camshaft specifications are straight off Wade Cams website at wadecams.com I hope these camshaft specifications will help all of you.
     
    Last edited: Nov 19, 2007

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