Ah.. damn... Well in terms of suspension wise I think I am covered will full ohlins on 675r :) In terms of motor, I thought we weren't allowed to do any machining other than gasket, valve timing and valve seating.
Well you wont want to be leaving it stock. It may say Ohlins on the outside, but the inside may not be top drawer stuff. You will almost certainly want a revalve and different springs for track use anyway. You might find this topic I posted interesting: http://www.triumph675.net/forum/showthread.php?t=66324
Yes there are limitations to what you can do to the motor, that doesn't mean racers don't do things they shouldn't! I would have thought a blueprinted engine would be a definite requirement.
A 600 is a relatively low powered machine, so any small gain you can get over the competition is going to be needed, even if it's just an extra bhp or two. It's possibly harder to find than on a bigger engine, hence my suggestion that it's just as expensive because it's hard to find a gain without spending money.
There is one free way to get more power though: loose some of your own bodyweight to improve your power to weight ratio. Don't underestimate that, I lost a stone when racing and even noticed the difference on a 1,000.
What do you mean by cryogenics? I have never heard about that on a bike before.
This is a process to cryogenically treat engine parts to increase engine performance and life. During the process, the engine parts are heated up, then exposed to vapors of liquid nitrogen, slowly cooling the parts to below 200 degrees C.
This process helps to relieve metal stress and creates a stronger, denser, more uniform molecular structure.
The process forces the molecules into a uniform pattern that doesn’t allow for peaks and valleys – imperfections which aren’t visible to the naked eye. Each one of these peaks and valleys can be a potential breaking point. The engine will be more stabilised, the cylinder walls don’t warp and crack, it gives less blow by on the pistons, more compression and therefore will give higher horsepower.
The process reduces friction and increases strength, unlocking hidden horsepower in your engine.
Common parts to get treated include: