Canadian_CD9A
Supporting Member
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- 833
- Feb 10, 2012
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Winnipeg,
MB_Canada
I've noticed myself posting this a couple of times, so I'll just make one big thread about it. This is a list I've compiled of camshaft offerings for the DSM 4G63 engine. This information is correct to the best of my knowledge, but please feel free to add or correct any information you may have, or tell me about anything I've missed. Lots of these camshafts measure duration at either 1mm (0.040") or at 1.27mm (0.050"). If you have the number for the opposite figure, please add that as well.
GSC, Kelford and Tomei's lift figures are calculated with a 1.73 rocker; HKS, Web, Crower and BC use 1.7, so I equalized them to 1.73. I don't know what Jun uses, but I suspect a 1.73 (numbers unchanged).
**Keep in mind that the duration numbers are either measured at 1mm (0.040") or at 0.050" - you cannot compare these values!**
BC 272 Lift: 10.36/9.83 (Stage 2)
BC 272 Duration @ 0.050": 208/212
BC 276 Lift: 11.27/11.27 (Stage 3)
BC 276 Duration @ 0.050": 220/220
BC 284/280 Lift: 11.63/11.11 (Stage 4)
BC 284/280 Duration @ 0.050": 230/226
BC 280 Lift: 10.90/10.79 (old profile)
BC 280 Duration @ 0.050": 218/216
Buschur BF272 Lift: 11.71/11.71
Buschur BF272 Duration @ 0.050": 212/211
Buschur BF280 Lift: 12.23/12.23
Buschur BF280 Duration @ 0.050": 219/221
Comp 101100 Lift: 10.34/9.93 ***These are the same as FP1s
Comp 101100 Duration @ 0.050": 204/204
Comp 101200 Lift: 10.44/10.03 ***These are the same as FP2s
Comp 101200 Duration @ 0.050": 212/212
Comp 101300 Lift: 10.44/10.03 ***These are the same as FP3s
Comp 101300 Duration @ 0.050"" 212/212 - note: different centerline, faster ramp
Comp 101400 Lift: 10.54/10.13 ***These are the same as FP4s
Comp 101400 Duration @ 0.050": 220/220
Forced Performance FP1x Lift: 10.47/10.06
Forced Performance FP1x Duration @ 0.050": 204/204
Forced Performance FP2x Lift: 10.57/10.16
Forced Performance FP2x Duration @ 0.050": 212/212
Forced Performance FP3x Lift: 10.92/10.52
Forced Performance FP3x Duration @ 0.050": 212/212
Forced Performance FP4R Lift: 11.18/10.80
Forced Performance FP4R Duration @ 0.050": 224/224
Forced Performance FP5R Lift: 12.07/11.69
Forced Performance FP5R Duration @ 0.050": 232/232
Crower 264/264 Lift: 10.11/9.45
Crower 264 Duration @ 0.050": 204/204
Crower 264/272 Lift: 10.29/9.77
Crower 264/272 Duration @ 0.050": 204/212
Crower 272/272 Lift: 10.17/9.80
Crower 272/272 Duration @ 0.050": 211/212
Crower 280/280 Lift: 10.62/10.11
Crower 280/280 Duration @ 0.050": 213/215
Crower 288/288 Lift: 10.99/10.76
Crower 288/288 Duration @ 0.050": 218/216
GSC S1 Lift: 11.0/10.5
GSC S1 Duration @ 0.040": 216/220
GSC S2 Lift: 11.03/11.03
GSC S2 Duration @ 0.040": 230/230
GSC S3 Lift: 11.70/11.70
GSC S3 Duration @ 0.040": 238/238
GSC R2 Lift: 12.00/12.00
GSC R2 Duration @ 0.040": 236/236
HKS 264 Lift: 10.48/9.97
HKS 264 Duration @ 0.040": 210/210
HKS 272 Lift: 10.48/9.97
HKS 272 Duration @ 0.040": 218/218
HKS 272 Duration @ 0.050": 213/213
HKS 280 Lift: 11.00/10.38
HKS 280 Duration @ 0.040": 222/222
Jun 264 Lift: 10.50/10.50
Jun 264 Duration @ 0.040": unknown, suspected to be approx. 228/228
Jun 272 Lift: 10.63/10.63 ***Evo VIII spec, likely same as DSM
Jun 272 Duration @ 0.040": 235/235
Kelford TX258 Lift: 10.50/10.50
Kelford TX258 Duration @ 0.040": 208/220
Kelford TX264 Lift: 11.00/10.35
Kelford TX264 Duration @ 0.040": 216/216
Kelford TX268 Lift: 11.00/10.50
Kelford TX268 Duration @ 0.040": 216/220
Kelford TX272 Lift: 11.00/11.00
Kelford TX272 Duration @ 0.040": 226/226
Kelford TX272L Lift: 10.00/10.00
Kelford TX272L Duration @ 0.040": 226/226
Kelford TX276HL Lift: 12.50/12.00
Kelford TX276HL Duration @ 0.040": 234/230
Kelford TX278 Lift: 11.00/11.00
Kelford TX278 Duration @ 0.040": 226/230
Kelford TX280 Lift: 11.50/11.00
Kelford TX280 Duration @ 0.040": 238/230
Kelford TX280R Lift: 11.50/11.50
Kelford TX280R Duration @ 0.040": 238/242
Kelford TX284HL Lift: 12.50/12.00
Kelford TX284HL Duration @ 0.040": 242/238
Kelford TX288 Lift: 12.00/11.50
Kelford TX288 Duration @ 0.040": 242/238
Kelford TX294 Lift: 12.00/12.00
Kelford TX294 Duration @ 0.040": 250/256
Kelford TX294HL Lift: 12.50/12.00
Kelford TX294HL Duration @ 0.040": 250/244
Tomei Poncam 260 Lift: 10.70/10.20
Tomei Poncam 260 Duration @ 0.040": 215.5/214.5
Tomei Poncam 260 Duration @ 0.050": 209/209
Tomei Procam 270 Lift: 11.50/11.50
Tomei Procam 270 Duration @ 0.040": 227.5/226.5
Tomei Procam 270 Duration @ 0.050": 221.0/220.5
Tomei Procam 280 Lift: 11.50/11.50
Tomei Procam 280 Duration @ 0.040": 232/233
Tomei Procam 280 Duration @ 0.050": 225.5/228.5
Web Cams 546/547 Lift: 10.34/9.95
Web Cams 546/547 Duration @ 0.050": 206/206
Web Cams 452/228 Lift: 10.73/10.09
Web Cams 452/228 Duration @ 0.050": 214/212
Web Cams 453/258 Lift: 10.73/10.09
Web Cams 453/258 Duration @ 0.050": 222/212
GSC, Kelford and Tomei's lift figures are calculated with a 1.73 rocker; HKS, Web, Crower and BC use 1.7, so I equalized them to 1.73. I don't know what Jun uses, but I suspect a 1.73 (numbers unchanged).
**Keep in mind that the duration numbers are either measured at 1mm (0.040") or at 0.050" - you cannot compare these values!**
BC 272 Lift: 10.36/9.83 (Stage 2)
BC 272 Duration @ 0.050": 208/212
BC 276 Lift: 11.27/11.27 (Stage 3)
BC 276 Duration @ 0.050": 220/220
BC 284/280 Lift: 11.63/11.11 (Stage 4)
BC 284/280 Duration @ 0.050": 230/226
BC 280 Lift: 10.90/10.79 (old profile)
BC 280 Duration @ 0.050": 218/216
Buschur BF272 Lift: 11.71/11.71
Buschur BF272 Duration @ 0.050": 212/211
Buschur BF280 Lift: 12.23/12.23
Buschur BF280 Duration @ 0.050": 219/221
Comp 101100 Lift: 10.34/9.93 ***These are the same as FP1s
Comp 101100 Duration @ 0.050": 204/204
Comp 101200 Lift: 10.44/10.03 ***These are the same as FP2s
Comp 101200 Duration @ 0.050": 212/212
Comp 101300 Lift: 10.44/10.03 ***These are the same as FP3s
Comp 101300 Duration @ 0.050"" 212/212 - note: different centerline, faster ramp
Comp 101400 Lift: 10.54/10.13 ***These are the same as FP4s
Comp 101400 Duration @ 0.050": 220/220
Forced Performance FP1x Lift: 10.47/10.06
Forced Performance FP1x Duration @ 0.050": 204/204
Forced Performance FP2x Lift: 10.57/10.16
Forced Performance FP2x Duration @ 0.050": 212/212
Forced Performance FP3x Lift: 10.92/10.52
Forced Performance FP3x Duration @ 0.050": 212/212
Forced Performance FP4R Lift: 11.18/10.80
Forced Performance FP4R Duration @ 0.050": 224/224
Forced Performance FP5R Lift: 12.07/11.69
Forced Performance FP5R Duration @ 0.050": 232/232
Crower 264/264 Lift: 10.11/9.45
Crower 264 Duration @ 0.050": 204/204
Crower 264/272 Lift: 10.29/9.77
Crower 264/272 Duration @ 0.050": 204/212
Crower 272/272 Lift: 10.17/9.80
Crower 272/272 Duration @ 0.050": 211/212
Crower 280/280 Lift: 10.62/10.11
Crower 280/280 Duration @ 0.050": 213/215
Crower 288/288 Lift: 10.99/10.76
Crower 288/288 Duration @ 0.050": 218/216
GSC S1 Lift: 11.0/10.5
GSC S1 Duration @ 0.040": 216/220
GSC S2 Lift: 11.03/11.03
GSC S2 Duration @ 0.040": 230/230
GSC S3 Lift: 11.70/11.70
GSC S3 Duration @ 0.040": 238/238
GSC R2 Lift: 12.00/12.00
GSC R2 Duration @ 0.040": 236/236
HKS 264 Lift: 10.48/9.97
HKS 264 Duration @ 0.040": 210/210
HKS 272 Lift: 10.48/9.97
HKS 272 Duration @ 0.040": 218/218
HKS 272 Duration @ 0.050": 213/213
HKS 280 Lift: 11.00/10.38
HKS 280 Duration @ 0.040": 222/222
Jun 264 Lift: 10.50/10.50
Jun 264 Duration @ 0.040": unknown, suspected to be approx. 228/228
Jun 272 Lift: 10.63/10.63 ***Evo VIII spec, likely same as DSM
Jun 272 Duration @ 0.040": 235/235
Kelford TX258 Lift: 10.50/10.50
Kelford TX258 Duration @ 0.040": 208/220
Kelford TX264 Lift: 11.00/10.35
Kelford TX264 Duration @ 0.040": 216/216
Kelford TX268 Lift: 11.00/10.50
Kelford TX268 Duration @ 0.040": 216/220
Kelford TX272 Lift: 11.00/11.00
Kelford TX272 Duration @ 0.040": 226/226
Kelford TX272L Lift: 10.00/10.00
Kelford TX272L Duration @ 0.040": 226/226
Kelford TX276HL Lift: 12.50/12.00
Kelford TX276HL Duration @ 0.040": 234/230
Kelford TX278 Lift: 11.00/11.00
Kelford TX278 Duration @ 0.040": 226/230
Kelford TX280 Lift: 11.50/11.00
Kelford TX280 Duration @ 0.040": 238/230
Kelford TX280R Lift: 11.50/11.50
Kelford TX280R Duration @ 0.040": 238/242
Kelford TX284HL Lift: 12.50/12.00
Kelford TX284HL Duration @ 0.040": 242/238
Kelford TX288 Lift: 12.00/11.50
Kelford TX288 Duration @ 0.040": 242/238
Kelford TX294 Lift: 12.00/12.00
Kelford TX294 Duration @ 0.040": 250/256
Kelford TX294HL Lift: 12.50/12.00
Kelford TX294HL Duration @ 0.040": 250/244
Tomei Poncam 260 Lift: 10.70/10.20
Tomei Poncam 260 Duration @ 0.040": 215.5/214.5
Tomei Poncam 260 Duration @ 0.050": 209/209
Tomei Procam 270 Lift: 11.50/11.50
Tomei Procam 270 Duration @ 0.040": 227.5/226.5
Tomei Procam 270 Duration @ 0.050": 221.0/220.5
Tomei Procam 280 Lift: 11.50/11.50
Tomei Procam 280 Duration @ 0.040": 232/233
Tomei Procam 280 Duration @ 0.050": 225.5/228.5
Web Cams 546/547 Lift: 10.34/9.95
Web Cams 546/547 Duration @ 0.050": 206/206
Web Cams 452/228 Lift: 10.73/10.09
Web Cams 452/228 Duration @ 0.050": 214/212
Web Cams 453/258 Lift: 10.73/10.09
Web Cams 453/258 Duration @ 0.050": 222/212
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