Nice work NASTYZEN!!
Proper headers like that take a lot of knowledge, time, patience, and skill!
Any pics of the dies you have for the reverb chambers?
Any pics of the that HTT Locus? Mid-engine car?
Thanks ZT, all I'm missing is your robotic welding skills!
Actually, all you need to know about headers is that the pulse or expanding gases from each cylinder needs to reach the collector for the primaries in sequence.Thats's how headers work. Say you have a 4 cylinder engine. You will have 4 tubes(Primaries) joining at the collector. You need to sequence the firing order such that it goes in a circular pattern,thus creating a vortex that helps **** out the gasses faster.Voila!
That's the reason that tube lengths are so critical for the primaries. So that the pulses reach the collector at the same time.
To make a set of headers, you need to have lengths and diameter of primaries as well as the length and diameter of secondary or tail pipe from the engine builder. He gets those from the volume of displacement of the motor.
I'm no rocket scientist, just a fabricator......
Those chambers are supposed to catch the shock wave that is ahead of the pulse.Being faster, the shock wave bounces back from the collector towards the cylinder and screws up the cycle a little. So these chambers catch it before it reaches the cylinder.The primary tube extends 3/4 of the way into the ball.Thats where the shock wave goes,in between the ball and the tube. While the next cycle goes by, unobstructed.Again where you put this chamber on is critical in order for it to work.
I need to dig out that die for those chambers out. But all it is ,is a piece of tube that I turned a cone at one end and a rad at the other. A bit like your use of a hitch ball for your bike project. Wich looks awesome btw.
I will post up on the Pléthore at a later time. I may get crucified if I put pics of a priceless prototype on the web before getting the OK from HTT.
These are 304s/s 4 into 2 into 1 for FF-1600 The advantage with these is that you get both low end and high end torque.

