Manic Mike Posted October 29, 2020 Report Share Posted October 29, 2020 Anyone tried to re-grind a cam for a 2002 V70. I had a spare set and re-ground them for medium performance; problem is valves are too short/tappet too short. The process involves removing part of the lower cam lobe and then re-adjusting the valve. In the end you get a bit more lift and duration. Common practice on American cars, not so on Volvo. Any suggestions short of paying $1,200.00 for the cams that work or replacing all the valves? The bigger turbo and ported heads will probably end up with the original stock cam.... Manic Mike Link to comment Share on other sites More sharing options...
gdog Posted October 30, 2020 Report Share Posted October 30, 2020 Re-grinds are not so great for a variety of reasons, especially for bucket/shim overhead cam engines w/o rockers. Besides, unless you're going for large power upgrades, cam lift/timing isn't as critical, especially for turbo-charged engine application. From your prior post, see you're going with 16t? A slightly larger turbo (say 19t, or more) and corresponding tune will make much more difference. When turning up the boost, you'll soon find detonation is limiting factor. E85 fuel, or water/methanol injection can allow you to turn it up past 11... Link to comment Share on other sites More sharing options...
Manic Mike Posted October 30, 2020 Author Report Share Posted October 30, 2020 Thank you for the advice. This is a faster Volvo and not a race car, so I seems that Stock cams are the best choice. Specialty cams run around $1,300.00 delivered and that $1,300.00 could be put to better use... Manic Mike Link to comment Share on other sites More sharing options...
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