Not concerned with the strength, but with a smaller radius it would seem to me to cause more wear? I think you may have a bit more hot rod experiance (gas engine)then I, have you used a reground cam and had it last just fine? I have not, although I must say that the engines I have built have been old ball engines. Like an international 304. But was able to get new cams, and not have to settle for a regrind.

Have all the turbo parts, k26 turbo, manifolds, oil lines, filter housing etc. I want to max out without turbo first to see what I can get out of it, then add the turbo. The turbo will go on a rebuilt engine, not the one in the car now. Have one on the stand, with new liners, pistons, and bottom end. Need to do the rest of it, as time and money allow. Have been gathering parts.

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1977 240D turbo