Fabio- Think about a set in 321 for me. I want them bulletproof and still perfect when I die, hopefully of old age.
Originally Posted by The Dark Side of Will View Post
Nope, too expensive and titanium is tougher to weld than SS. Plus good SS is tougher than titanium.
Also I would have preferred use AISI 321, but i not be able to find, specially my dimension Ø38.1 Thk. 1.2, i'm checking from months to some suppliers in italy and i finded only 40x1.5 but is a remaining of stock and is pipe, not are bends ...
They told me that can produce a stock only for me but how many tons ...???
Probably if i go to F1 exhaust company i find it, but which price..?
For precision my is 304L (low carbon), is little bit better than normal 304, (i spoke with a technician that work in Ducati, and confirm me that 321 is better but 304 L is a good compromise), the problem of those steel is the potential interstitial corrosion due to the termal stress hot cold, in the grade 304L this risk is less.
My supplier is supplier also for one exhaust builder and him told to the my supplier that for him also other company use 304 .... would true? ...
You are sure that other builders use 321, for the eyes both 304 & 321 are the same, the only system to know the type is to cut a piece and do a analysis.
I would do a prototype in Titanium, also if it is more expensive and some times have problem of crak, but is nice to see and very light, inconel probably would good, but is not easy to find every dimensions.
For last, i'm very happy of the my results, i think is a little miracle to insert 6-1 manifold plus a big cat in the little space of maranello engine compartment, you not forget, without any modifcation of the car (most important thing for me), not even ECU, and perfectly fit to the original central pipes.
About the little space of engine compartment, is interesting note that all 550 of 575 that raced (Prodrive, NTechnology or other ..) the have shifted the steering box in front of the engine and removed the steering column from the original location, also the starter engine was shifted, in this way their exhaust system was a more free design ... (see pictures)
Modify the design of my headers for another pipe diameter is like redesign all, including part of equipments ....
The first test is progress on my 575, the second will be on the 550 of my first client that will be go on track ...