GSC Power-Division S1 cams for the Nissan SR20 S13/S14 non Variable engine. The S1 cams are designed for those running an upgraded turbo such as a GT25R to a GT3076. These cams will not have bottom end losses over stock cams; nothing but gains and will promote an extremly flat torque curve.
Gains of 30-50whp (depending on Turbo) have been seen by simply bolting the S1 cams in and reshimming. Designed for a rev range of 3000-8000rpms, these cams require a single valve spring upgrade over stock. 300-500whp camshaft set with an idle slightly ruffer than stock.
S1 Specs 6040S1
Intake 268 Duration 11mm peak lift, 108 degree Centerline
Exhaust 270 Duration 11mm Peak Lift, 115 degree Centerline