Cam matrix
Boonrat Lohwongwatana
boonrat@caltech.edu
Fri, 15 Aug 2003 05:20:01 -0500
Guys,
Not sure if it's already in the archives or not, but I could not find this
spreadsheet in over there. So I hope it is useful to somebody. Thanks to
Mike Kojima who gave me the spreadsheet.
Boonie
SR20DE Cam Matrix
Camshaft In. Duration In. Lift In. LC Ex. Duration Ex. Lift Ex. LC
Stock 91-93 248 .394 111 240 .362 117
Stock 94+ 240 .362 107 240 .362 117
Stock 95-99 232 .342 111 240 .362 117
Stock 20-01 240 .372 113 232 .349 114
JWT S3 HL 260 .482 111 260 .442 117
JWT S4 266 .464 111 266 .464 117
JWT C1 * 264 .474 111 264 .474 117
JWT C2 * 275 .500 111 275 .500 117
JWT C3 * 285 .526 111 285 .526 120
JWT S3 GTI-R 263 .456 111 263 .456 117
JWT S3 Roller 262 .450 111 262 .450 117
JUN 256 .413 NA 256 .413 NA
JUN 264 .413 NA 264 .413 NA
JUN * 256 .453 NA 256 .453 NA
JUN * 264 .453 NA 264 .453 NA
JUN * 272 .453 NA 272 .453 NA
JUN** 264 .425 NA 264 .425 NA
JUN** 272 .433 NA 272 .433 NA
JUN** 280 .453 NA 280 .453 NA
Tomei 260 .440 NA 260 .440 NA
Tomei 270 .440 NA 270 .440 NA
Tomei * 260 .472 NA 260 .472 NA
Tomei * 270 .492 NA 270 .492 NA
Tomei** 260 .472 NA 260 .472 NA
Tomei** 270 .492 NA 270 .492 NA
Tomei** 280 .492 NA 280 .492 NA
Toda 248 .433 NA 248 .433 NA
Toda 256 .413 NA 256 .413 NA
Toda 264 .413 NA 264 .413 NA
Toda 272 .413 NA 272 .413 NA
ZEX/Comp * 264 .440 108 274 .400 113
ZEX/Comp * 268 .450 108 278 .454 116
Comp * 268 .450 118 286 .450 118
ZEX/Comp* 272 .452 110 282 .454 118
Comp * 272 .452 118 290 .460 118
*Valve springs required
**Lash killer kit needed or use in a GTI-R mechanical lifter motor
+ These cams were on the 94 SE-R only but were used on the 94-96 Infiniti
G20
ZEX cams are made by Comp Cams the two Comp Cams grinds are unique to Comp
Cams.