Cam Specs

[GokuSSJ4]

here's the new list.

Factory EVO
Advertised Duration - 260 deg Int / 256 deg Exh
Effective Duration - ___ deg @ 1mm Int / ___ deg @1mm Exh
Lift - 10.0mm Int / 9.5mm Exh
Lobe Centerlines - 109 deg Int /111 deg Exh
LSA - 110 deg
Stock valve springs OK

JDM EVO MR
Advertised Duration - 260 deg Int / 256 deg Exh
Effective Duration - ___ deg @ 1mm Int / ___ deg @1mm Exh
Lift - 10.0mm Int / 9.5mm Exh
Lobe Centerlines - 113 deg Int /112 deg Exh
LSA - 112.5 deg
Stock valve springs OK


Comp Cams 264+
Advertised Duration - 248 deg Int / 248 deg Exh
Effective Duration - ___ deg @ 1mm Int / ___ deg @1mm Exh
Lift - 10.8mm Int / 10.2mm Exh
Lobe Centerlines - 104 deg Int / 112 deg Exh
LSA - 108 deg
Upgraded valve springs recommended

Comp Cams 272+
Advertised Duration - 256 deg Int / 257 deg Exh
Effective Duration - ___ deg @ 1mm Int / ___ deg @1mm Exh
Lift - 10.8mm Int / 10.2mm Exh
Lobe Centerlines - 104 deg Int / 112 deg Exh
LSA - 108 deg
Upgraded valve springs recommended

Comp Cams 280+
Advertised Duration - 264 deg Int / 265 deg Exh
Effective Duration - ___ deg @ 1mm Int / ___ deg @1mm Exh
Lift - 11.0mm Int / 10.4mm Exh
Lobe Centerlines - 104 deg Int / 112 deg Exh
LSA - 108 deg
Upgraded valve springs recommended


GSC 264
Advertised Duration - 268 deg
Effective Duration - 194 deg @ 1mm
Lift - 10.6mm Int / 10.0mm Exh
Lobe Centerlines - ___ deg Int / ___ deg Exh
LSA - ___ deg
Stock valve springs OK

GSC 272
Advertised Duration - 281 deg
Effective Duration - 203 deg @ 1mm
Lift - 10.6mm Int / 10.0mm Exh
Lobe Centerlines - ___ deg Int / ___ deg Exh
LSA - ___ deg
Stock valve springs OK


HKS 264
Advertised Duration - 264 deg
Effective Duration - 206 deg @ 1mm
Lift - 10.8mm Int / 10.2mm Exh
Lobe Centerlines - 110 deg Int / 110 deg Exh
LSA - 110 deg
Stock valve springs OK

HKS 272
Advertised Duration - 272 deg
Effective Duration - 214 deg @ 1mm
Lift - 10.8mm Int / 10.2mm Exh
Lobe Centerlines - 110 deg Int / 110 deg Exh
LSA - 110 deg
Stock valve springs OK

HKS 280
Advertised Duration - 280 deg
Effective Duration - 222 deg @ 1mm
Lift - 10.8mm Int / 10.2mm Exh
Lobe Centerlines - 110 deg Int / 110 deg Exh
LSA - 110 deg
Stock valve springs OK


JUN 264
Advertised Duration - 264 deg
Effective Duration - ___ deg @ 1mm
Lift - 10.5mm
Lobe Centerlines - ___ deg Int / ___ deg Exh
LSA - ___ deg
Upgraded valve springs required

JUN 272
Advertised Duration - 272 deg
Effective Duration - 235 deg @ 1mm
Lift - 10.8mm
Lobe Centerlines - 110 deg Int / 115 deg Exh
LSA - 112.5 deg
Upgraded valve springs required


Piper Ultimate Road
Advertised Duration - 265 deg
Effective Duration - 217 deg @1mm Int / 211 deg @1mm Exh
Lift - 11.5mm Int / 10.8mm Exh
Lobe Centerlines - 108 deg Int / 107 deg Exh
LSA - 107.5
Upgraded valve springs required

Piper Rally
Advertised Duration - 265 deg
Effective Duration - 217 deg @ 1mm
Lift - 11.5mm
Lobe Centerlines - 108 deg Int / 107 deg Exh
LSA - 107.5
Upgraded valve springs required

Piper Race
Advertised Duration - 272 deg
Effective Duration - 224 deg @ 1mm
Lift - 12.0mm
Lobe Centerlines - 106 deg
LSA - 106 deg
Upgraded valve springs required


Revolver 262/264
Advertised Duration - 262 deg Int / 264 deg Exh
Effective Duration - 222 deg @ 1mm Int / 223 deg @ 1mm Exh
Lift - 11.4mm Int / 11.5mm Exh
Lobe Centerlines - 109 deg Int / 111 deg Exh
LSA - 110 deg
Upgraded valve springs required


Tomei Poncam
Advertised Duration - 260 deg
Effective Duration - ___ deg @ 1mm
Lift - 10.7mm Int / 10.2mm Int
Lobe Centerlines - 110 deg Int / 115 deg Exh
LSA - 112.5 deg
Stock valve springs OK

Tomei Procam
Advertised Duration - 280 deg
Effective Duration - ___ deg @ 1mm
Lift - 11.5mm Int / 11.5mm Exh
Lobe Centerlines - 110 deg Int / 115 deg Exh
LSA - 112.5 deg
Upgraded valve springs required

Some specs on the Cosworth cams:


272/11 264/10.5
(bigger cam)(smaller cam)
Duration @ Duration
280 .002" 275
274 .003" 266
260 .006" 256
249 .010" 246
237 .016" 234
231 .020" 228
210 .040" 206
202 .050" 197
168 .100" 161
97 .200" 80

Cam lift

.251" .232"

Valve lift
.433" .400"


CenterLine

107 intake and 113 exh.

[WOT]

could you please add oem evo8 cam specs?

[negro evo]

This is good to know that I can use Stock valve springs thankyou. O0

[xEviLxVIIIx]

Buddy Clubs are identical to the hks ones right?

[trinydex]

keep in mind that the lift is not the sole factor that determines if you can use your stock valve springs or not. likely it is how aggressive the ramp rate is and when in doubt you most likely need the prings and retainers.

[Mike W]

Some specs on the Cosworth cams:


272/11 264/10.5
(bigger cam)(smaller cam)
Duration @ Duration
280 .002" 275
274 .003" 266
260 .006" 256
249 .010" 246
237 .016" 234
231 .020" 228
210 .040" 206
202 .050" 197
168 .100" 161
97 .200" 80

Cam lift

.251" .232"

Valve lift
.433" .400"


CenterLine

107 intake and 113 exh.

Mike W

[GokuSSJ4]

Some specs on the Cosworth cams:


272/11 264/10.5
(bigger cam)(smaller cam)
Duration @ Duration
280 .002" 275
274 .003" 266
260 .006" 256
249 .010" 246
237 .016" 234
231 .020" 228
210 .040" 206
202 .050" 197
168 .100" 161
97 .200" 80

Cam lift

.251" .232"

Valve lift
.433" .400"


CenterLine

107 intake and 113 exh.

Mike W

from talking to cosworth and John M. these type of cams require some time to install them (not the same as your usual cams "HKS) have you guys manage any good results with this ?
I have a set in my garage LOL....

[500whp]

Buddy Clubs are identical to the hks ones right?
Yes same specs

[500whp]

Facotry OEM Spec - Evo VIII

Duration - 260 In / 256 Ex
Cam Lift - 10.00mm In/Ex
Center Angle Centerlines - 109 deg Int / 110 deg Exh
LSA - Unknown


Tomei Poncam
Advertised Duration - 260 deg
Effective Duration - ___ deg @ 1mm
Lift - 10.7mm Int / 10.2mm Int
Lobe Centerlines - 110 deg Int / 115 deg Exh
LSA - 112.5 deg
Stock valve springs OK

Tomei Poncam
Advertised Duration - 260 deg
Effective Duration - ___ deg @ Unknown
Lift - 11.5mm Int / 11.5mm Int
Lobe Centerlines - 110 deg Int / 115 deg Exh
LSA - Unknown
Upgraded valve springs required

Tomei Procam
Advertised Duration - 270 deg
Effective Duration - ___ deg @ Unknown
Cam Lift - 11.5mm Int / 11.5mm Ex
Valve Lift - 6.65mm Int / 6.65 Ex
Lobe Centerlines - 110 deg Int / 115 deg Exh
LSA - Unknown
Upgraded valve springs required

Tomei Procam
Advertised Duration - 270 deg
Effective Duration - ___ deg @ Unknown
Cam Lift - 11.5mm Int / 11.5mm Ex
Valve Lift - 6.75mm Int / 6.75 Ex
Lobe Centerlines - 110 deg Int / 115 deg Exh
LSA - Unknown
Upgraded valve springs required

Tomei Procam
Advertised Duration - 280 deg
Effective Duration - ___ deg @ Unknown
Cam Lift - 11.5mm Int / 11.5mm Exh
Valve Lift - 6.65mm In / 6.65mm Ex
Lobe Centerlines - 110 deg Int / 115 deg Exh
LSA - Unknown
Upgraded valve springs required

Tomei Procam Solid
Advertised Duration - 280 deg
Effective Duration - ___ deg @ Unknown
Cam Lift - 11.8mm Int / 11.8mm Exh
Valve Lift - 6.95mm In / 6.95mm Ex
Lobe Centerlines - 110 deg Int / 115 deg Exh
LSA - Unknown
Upgraded valve springs required

[travispike]

likely it is how aggressive the ramp rate is and when in doubt you most likely need the prings and retainers.