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 R2M Camshafts for the Toyota Supra 2JZ-GTE. The R2M cams are designed for those running methanol and single turbos larger than 80mm. These camshafts are not for daily drivers, they are engineered for race only setups in the 2,000 to 3,000hp range who are capable of running 6 second passes. They are designed for a power-band range of 6,000-10,000 RPM's. These cams require upgraded valve springs set such as our Conical Spring Kit (GSC5066) along with shim-less buckets/tappets. Head clearancing for the high lift of the camshaft's lobes is also required. (Full porting highly recommended).
- It is necessary to clearance the cylinder head casting to allow for the R2M profile to rotate in the 2JZ-GTE cylinder head
- Please maintain 0.02"/ 0.5mm minimum clearance from the cylinder head casting
- 2000+ WHP capable
7030R2M | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
Intake | 278° | 242° | 11.30mm | 110° |
Exhaust | 294° | 252° | 11.35mm | 118° |
Applications
- 1993-1998 TOYOTA SUPRA L6 3.0 T 2JZ-GTE NON-VVTi