All of the budget turbo gombos ive played with have ended up with some kind water/methanol spray.usually allows for a bit more boost so obviously has an advantage. ours have been pretty basic deals so would imagine that a high pressure injection thats atomised would be an advantage.especially with lpg. we used a Whale pump (like caravan/boat systems use) and turned it on with a hobbs switch set at 11 lb .. My dream is refrigerated intercooling, ive seen a few designs on this and looks like where i will be going with my coupe.runs like a liquid to air intercooler but with refrigerated air ...