i'd like a simple straight manifold that holds both the turbo's in isolated parrellel operation. it'd use one WG and i guess the dp/vband would have to be fab'd.

custom y-pipe too obviously.

 

But what advantage does this have to a single setup?Very marginal improvement.

 

The idea isn't an improvement in HP but in simplicity. It's possible it could be done in inconel or heat coated SS. If it's done well, then the DP should mate. The only additional cost is the wastegate. I guess you could say it's a compromise. It's a feasable alternative to replacing the twins because of badly cracked housings/manifold. Say $1k vs $3k for new twins.

 

exactly. it's to better run the twins. in some cases it is an upgrade if you are going to run nonseq. it's not a "big" single, but if your twins are fine or just need new seals, and you run this, maybe you can pull some more power out of them with less exhaust restriction.

it's somewhat experimental territory i guess since i've never heard of anyone actually running this. it's not better than a new single, just cheaper.