M104 camshafts and valve springs.
So I sent out the stock cams for profiling to see what can be done. I have been looking at the head and the valve springs to match up. There is about 1mm more lift max on the cams before the head need machined and the springs need replaced. If you remove the spring washers then you can get about 1.5mm on the stock springs. Since I would like to go more than this and any n/a application would to I was looking into aftermarket springs which of course needs new retainers and washers. This adds about 500+ more to the cost. So a simple cam swap becomes a valve job and springs. This is really going to wake up the engine though I think. I might even be able to lower the boost and make a bit more hp. Stock lift at 9.3mm is around .368 inches of lift. This is very low as we have discussed. Flow on the head at this lift is not to bad according to the data kynsi has gotten.
Basically I was thinking of getting profiles for turbo and n/a applications on the cams at the same time and the spring solution should be good for all applications. Anyone else interested in this at all to help eat up some of the cost. This should work well with the 3.6 motors and headers. I am looking at around 2-2500 including the head work for everything to get it done.
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