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Fortunately I haven't bought a motor yet, so it can be anything. Speed Triple Motors seem optimum, but not very plentiful. The simulations I've run to-date indicate that the Daytona cams are pretty good but there is probably some more to be had without losing driveability. Of course, without real port flow numbers that isn't much better than a guess.
Whatever I finally settle on, I thought I would swap out the liners, pistons, pins, rods, valves, valve springs, guides, seats, bearings, etc. for lighter race-quality parts. After all, once you are going to to pull an engine apart and have the head ported you might as well do the whole thing. There might not be much of a gain depending on the quality of the factory parts, but I haven't found much detailed information about them and I haven't had any success yet locating an experienced tuner of Triumph triples in Southern California.
If anyone has had an engine balanced and knows the weight of their pistons and rods, I would be interested in knowing. I would also be interested in knowing piston pin bore height, pin diameter and length, rod length, crankshaft journal diameter, etc. And since I'm asking I would also like to know the valve stem length and diameter, the stock valve spring free length and coil bind height, and the valve spring seat pressure and pressure at maximum lift. Generally I would expect to find this kind of information in the shop manual, but it is conspicuously absent. In fact given the level of detail provided by the shop manual, maybe the quality of dealer service isn't so hard too understand. But that is another subject...
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