The GSC Power-Division S1 cams for the Mitsu Evolution 4-8 are designed for those with the stock turbo up to the GT30/50Trim. These cams will not sacrifice any bottom end loss over stock cams; nothing but gains and will promote faster spooling of the upgraded turbos. Gains of 30-55whp (depending on Turbo) have been seen by simply bolting the S1 cams in. Designed for a rev range of 3000-8000rpms, these cams work well on the stock valve springs. 300-450whp camshaft. Idle is slightly rougher than stock.
6008S1 ADV Duration Duration @ 1mm Peak Lift CenterLine
Intake 268 216 11.00mm 107
Exhaust 268 220 10.50mm 113
The S2 cams are designed for those with more power in mind or a larger turbo. No low end power is lost vs the stock cams when used with the larger turbos. The S2 cams will show gains of 50-70whp over the stock cams and in some cases more in the higher RPMS. Great for 2.0L engines revving to 9000rpms or for Stroker motors revving to 8000rpms. The S2 Cams are suggest to run on our upgraded Beehive valve spring replacement or can be run at the stock revlimit and factory boost on the stock spring. Designed for a rev range of 4000-9000 RPMS(2.0L or 3000-8000 2.2L+), 400-700whp applications. S2 cams can run on Factory ECU with custom flashing.
6008S2 ADV Duration Duration @ 1mm Peak Lift CenterLine
Intake 274 230 11.20mm 107
Exhaust 274 230 11.00mm 113
The S3 Cams are available in a Solid Lifter cam and a Hydraulic Lifter Cam for the Evo 4-8 4G63. These cams are intended for the 800whp+ to take advantage of a very large turbo. these are NOT suggested for anyone running smaller than the 67mm to GT42R turbo.
6008S3 ADV Duration Duration @ 1mm Peak Lift CenterLine
Intake 280 238 11.70mm 109
Exhaust 280 238 11.70mm 115