Hey, gonracn...

[sandm]

edit-you're talking boat engines.. duh....


personally, I would not even talk turbo on a boat engine in the enclosed compartment it sits in. turbo's generate a TON of heat and with nowhere to place an intercooler with sufficient airflow, you will be inviting trouble with both overheating and reliability issues imo. a single turbo would need quite a bit of exhaust piping added, reprogrammed ecu, larger injectors and airflow to feed the turbo. keep in mind that most turbos need 2500-3000rpm's to "spin up" and start producing hp. most wakeboats run out over 4k. I would also think the added shock to the tranny/vdrive once a turbo spools up would not be good for their life expectancy.

a centrifugial supercharger would be a different way to go, as they can sometimes make power across a larger rpm range, meaning more power down low where you want it, don't generate the heat a turbo does, usually run a lower psi meaning potentially less bolt-on's needed and lower chance for detonation(death to a motor), and can be added to a smallblock engine in 4-5hrs.

I don't know much about superchargers other than that, but I would not even walk down the turbo path if it was my boat.. the performance boat guys run a lot of blown boats, but they have engines with super-low compression designed for high-hp applications and have engines designed to run a much higher rpm than ours, and in most cases you are spending most of your day in the low-mid rpm band of your engine where a blown boat wouldn't want to run

interesting question.. reasoning?