Here are some pics and graphs from Ria Kooistra who has built a 24v biturbo engine.
All internals are XM 24 v v6,only the dome of the pistons is 2mm less. The boost pressure is 10psi.
It runs standalone management, tubular manifolds, twin T25 hybrids, twin chargecoolers, and twin exhaust outputs.
it has 320 bhp at 5970, torque is 309 lb/ft at 5270.