I'm going to fab up a compound turbo setup for my car.. I was wondering if its been done and with what turbos? I'm sure I'm not the first to do it. I'm planning on using my current t3/t4 as the high pressure turbo, and a Holset HX35 as the primary turbo. Should be able to push an easy 30 to 40lbs of boost with low drive pressure and cool EGTs. (obviously I won't be pushing that kind of boost untill the head studs are in). The T3/T4 effecient boost range is only up to 20psi, and I would like to make more boost than that, but without having to have it reved sky high... I think AXL is running a HX 40 but is having trouble keeping it spooled... The compound setup will have all the advantages of a big and small turbo without the short commings of either...
I know its overkill and not needed, but it will look and sound cool
Jason