One thing to think of with a dry sump when it comes to additional power is if you have a wet sump system with NO VACUME PUMP, the dry sump pump will make vacume in the motor if it is sealed up I have heard that from more than one racer who has ran both, one of them has done it both ways, wet with a vacume pump and dry without, no noticeable power increase either way EDIT wet sump with a vacume pump makes more power than a wet sump without a vacume pump