Did anyone see this at pod on sunday?

Didnt manage a run as its more or less brand new, built from scratch in 7 years!! I was chatting to the guys who built it and it was very interesting, I've not had compound charging explained to me before. It was a bit complex, but it ran a T34 ish size turbo, feeding a huge turbo off a truck. One of the guys was explaining something about a 2:1 ratio, and 15 psi from the small one means large boost from the big one, cant remember much, maybe someone can explain it? Was fucking cool machine, the only thing standard was the cam holders, they made the head. The chap was telling me how is doesnt run valve seats etc.

Didnt get pics, will check to see if anyone did, I was amazed. Nice chaps too, if anyone knows anything about it, get the links in here!!

Steve