GSC Power-Division Billet Camshaft Evolution 4-8

S1

The GSC Power-Division Evo 4-8 Billet Camshaft is expertly engineered for stock turbo vehicles up to 550 WHP and aftermarket turbo kits. These high-performance cams provide increased power without compromising initial acceleration, resulting in improved spooling for upgraded turbos.

• Designed for a rev range of 3000-7500 RPMs
• These cams work well on the stock valve springs with lower boost and RPM goals
• Idle is slightly rougher than stock 

S2

Designed for those aiming for 400-700 WHP, the GSC Power-Division Billet Camshaft Evolution 4-8 features the 7008S2 cams. These cams offer a seamless transition from stock cams to larger turbos, retaining low end power. Experience a boost of 50-70 WHP over stock cams with the S2 cams, and potentially more at higher RPMs. Ideal for 2.0L engines with stock frame turbos revving up to 9000 RPMs or stroker motors reaching 8000 RPMs. It is recommended to use the 5041/5040 Ti retainer and spring kits due to this profile.

• Designed for a rev range of 4000-9000 RPMs (2.0L or 3000-8000 2.2L+)
• S2 cams can run on Factory ECU with custom flashing

S3

Utilizing a large turbo, the GSC Power-Division billet S3 cams are expertly crafted for the Evo 4-8 4G63, allowing for maximum performance of 800+ WHP. These cams are not recommended for those using a turbo smaller than 67mm or a GT42R. It is recommended to use the 5041/5040 Ti retainer and spring kits due to this profile.

R2

The GSC Power-Division Billet Camshaft Evolution 4-8 is a high lift and aggressive profile designed for stroked or higher displacement engines. It allows for a wide range of RPMs (4000-8500) and features a peak lift of 12.0mm on both intake and exhaust valves. To ensure proper performance, upgraded valve springs and a titanium retainer are required, with special attention to seal to retainer clearance. The recommended option for this profile is the 5041/5040 Ti retainer and spring kits, capable of handling up to 40+psi and 32psi respectively at 8500 RPMs without any float or flutter issues. This profile can also be used with the OEM rocker arm and lifter, or with an aftermarket intake manifold for even greater gains in horsepower (25-30 WHP on stroked applications).

Note: If using aftermarket cam gears (especially AEM) check the bolt length. Some cam gears are too thick for the OEM bolt on the billet cams, a 40mm underhead length bolt may be necessary in this case

Vehicle Fitment:

Lancer Evolution IV-IX 1996-2006