[HarriS]

They make very subtle claims for not to get caught for false ones. I don´t know if there is huge power lurking in the header no matter who makes them. The stock one does not look very bad after removing the pre silencer.

 

[HarriS]

The thing is that how much power can be obtained with special header. If it is 5hp, you barely notice it on the road. Spending 1000-2000$/€ for something you barely notice is a bit steep by my standards. One option is to design and fabricate the header myself but it involves much. The actual bend and weld is the easiest part. I have made 4-1, 4-2-1, 2-1 and 1-1. I usually have more or less copied the best in the market or just calculated the pipe and left it like that. I do not have enough enthusiasm to test a dozen different designs to find the optimum.

 

[HarriS]

If you know how to weld, cracking shouldn't happen.

BWAaaahaa hahaahahah!

That is the funniest thing I've heard all day!

Titan can be welded without the seams becoming brittle. Our company has made pressure vessels and heat exhangers of titanium in the past. Those were for process industry (pulp and paper). I just called our welding instructor (IWS). He said the purity of the Argon is one of the keys. Normal 99.99% is not pure enough and they used 99.998% Other thing is how much energy is brought to the workpiece. Cleanliness is the number one. Rule of thump is if the seam turns blue when welding, there is something wrong. I am not a professional welder. I work with machining and tooling. I can get the exact information from our welding engineers or quality manager if you like.

 

[HarriS]

In my opinion titanium is unnecessary Hi-Fi for bikes. Like you said thin wall stainless or even coated mild steel is easier to handle and costs way less and performs the same. We used titanium on certain highly corrosive environments.

 

[HarriS]

I have measured 600 C on the outlet of a car exhaust (several meters) on a dyno. The header turns cherry red easily.

 

[HarriS]

Now, if you want to design a better cam...

Yeah, Sounds like a good idea to me, however I think I read it in the manual that the head, ladder caps and cams were made for each other and if one went, all would need replacement? I've drank alittle bit more than usual tonight, so if this is really off the wall chalk it up to that.

The cams are ok as far as the journal diameters are within spec. The head and cam caps are line bored as set.