GSC Power-Division Billet Toyota 2JZ-GTE VVTi S1 Camshafts Set

GSC Power-Division billet S1 cams for the VVTi Toyota Supra 2JZ-GTE. The S1 cams are designed for those running an upgraded single turbo larger than 57mm. These cams will not have bottom end losses over stock cams with larger turbos; nothing but gains, and will promote an extremely flat torque curve. Gains of 40-70 WHP (depending on turbo) have been seen by simply bolting the S1 cams in and reshimming with a proper tune. These cams require a single valve spring upgrade over stock. We recommend the conical spring kit for VVTi cylinder heads due to clearance issues with the beehive spring on some castings. 

7031S1	ADV Duration	Duration @ 0.040"	Peak Lift	Center Line
Intake	269°	230°	9.90mm	Variable
Exhaust	269°	232°	9.90mm	114°