Hi, Thanks for asking, really. The reason is purely that we dont want anyone just copying them, we spent over a year from start to finish getting these for sale and dont wish to simply dish out the info - results yes, anytime, we are more than happy to oblige. As has been mentioned before however these cams are not for everyone, Triumph went to great deal of time and trouble to ensure a reliable robust unit which would operate safely from idle to maximum rpm. Some people it is clear are either uncomfortable using the 2nd half of their tacho or simply choose never to do so and we respect that, for those owners I`d say that to be fair overall the benefits are of minimal value. If however you like to let her rip now and again (or more so...) then for you it is a completely different situation altogether.
We tried and tested a very large and varied series of camshaft grinds from mild to wild,
including an interesting F1 Cosworth DFV grind from the 70's that we found, that seemed from our experience likely to benefit the twins, both 865cc and 790cc models. The DFV cam is on the left, they were a 3500cc V8 32 valve which translates to an 875cc twin. I am also more than happy to absolutely and completely deny the suggestion that our cams are simply remanufactured or copies of 790cc items. I hope that can now maybe help put that one to bed for you 865 guys.
I might also like to clarify a couple of other points as well if I may. One is that we have at no point EVER fitted a set of 790cc cams to an 865cc motor and the second is that despite our various tests etc. we have never found a grind for the 790cc motor that we felt comfortable to offer for retail.
I am currently planning at the moment to make some street/track cams for my KTM Superduke 990 racebike and going through all of this again....(well nearly) We are now a KTM dealer as well these days.
Thanks again for giving me the chance to answer your questions.
Nice to be back - got some new Graemelins too I see, all the best
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Since we have the man here, and I mean absolutely no disrespect, why won't you guy's confirm/ deny the specs of the cams? We, of course, want the cam specs. Mega Cycles and others do. I can understand not wanting to disclose specs for intellectual property, but can you at least confirm or deny that they are not the 790 cams specs? Those of us with 865's would really like to know!
