I will soon have available new performance roller camshafts. These cams are based on the factory rollers. I tracked down the cam manufacturer and had UGL sticks manufactured. I found a cam grinder who has a like mindedness and experience as to what turbo motors seem to prefer. I've been running two initial grinds to see how they behaved on the street and how the perform in day to day driving and I can say I've been very pleased with them. I hadn't been able to go to the track as of yet. My planned trip was detoured last Friday night. These puppies pull to 6800/7000 rather well. They do require a valve spring change. I can supply you with the proper valve spring also. The specs on the cam are both 252 adv. duration intake & exhaust. Duration @ .050" is 216 and 207 I/E respectively. Valve lift is .507" intake and .510" exhaust. Intake lobe centerline is 108.
The cams do not need any shims. The base circle is the same as the factory roller. The lobes were hardened deep enough so the wear will be essentially zero. Costs for the cams is $325.00 shipped to you. The attached picture is of a used one from testing in my Lancer.
Steve M.