Holm86 wrote:[...] Mercedes uses a single entry turbine where the others uses a twin entry turbine. I recon this could have something to do with the sound. I don't really know why they choose a single entry turbine.
[...]
With my remark I mistakenly used the word firing order instead of firing intervals.
You are not going to have even firing intervals with a V6 60° with shared crankshaft Pins (which is what I expect for a racing engine). Also, the configuration of the crankshaft (120° spacing colock- or counterclockwise) doesn't change a Thing.
60-180-60-180-60-180 (eg. 1-6-2-4-3-5) would be the interval.
Of course you can have also 240-60-180-60-180 with still even intervals in one bank, but it would be odd...
With single entry turbine, you could have 120-120-180-120-120-60 (eg 1-2-3-4-5-6), the banks would be uneven 120-120-480 in that case. Still odd, but maybe can this be ironed out with different lenghths of the exhaust manifold pipes.