What we here at MVP say about these cams:
Buyer beware!
The quality of GSC cams is not the issue, they are very high quality. The issue is that we (as well as several other very well known Supra shops (can't say who here in writing)) have seen multiple, multiple heads with severely premature bucket wear that are running these cams. The only solution? To DLC-coat your buckets at a cost of $500 - that's ridiculous!
There are lots of great cams out there from Brian Crower, Kelford, and Titan (made by Kelford) that we offer that do not cause any premature wear issues. We highly advise you consider any brand of cams other than GSC (and HKS - their grind profiles are from the 1990's and they make significantly less power than modern cams like the brands mentioned here).
What GSC says about these cams:
GSC Power-Division billet S2 camshafts for the Toyota Supra 2JZ-GTE. The S2 camshafts are designed for those running a single turbo larger than 71mm. These camshafts will not have bottom end losses over our S1 cams on the larger turbo; nothing but gains will be seen and will promote great peak power gains. Gains of 60-100 WHP (depending on turbo) have been seen by bolting the S2 cams in, re-shimming, and tuning. These cams do require upgraded valve springs but can be run on stock, non-ported cylinder heads.
- Designed for a rev range of 4,500-8,500 RPM's
- 800-1,300 WHP camshaft set
- Rougher than stock idle
7030S2 | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 274° | 239° | 10.20mm | Variable |
Exhaust | 274° | 240° | 10.50mm | 118° |
Applications
- 1993-1998 TOYOTA SUPRA L6 3.0 T 2JZ-GTE NON-VVTi