Max Ballast weight in my 78

i was just wondering, i am thinking of buying a ballast fat sac kit for my 1978 ski nautique, it contains a two bag set up/ Each bag is 60" long and 15" in diameter. i was thinking of putting one bag on each side of ther motor to weight down the boat for a bigger wake. Each bag weights 350lbs,

what im asking is,, do you think its a good idea to have these bags sitting on the stringers? because i have never openeed up the bottom of my boat, it seams very solid but i have no idea of how it is constructed and if it can take that weight....

thanks.. any input would help./

petermuhic wrote: has anyone ever used these weight bags on there older ski nautiques?

Some people have, some people think it not necessary. I think your talking about 766.1 lbs of addition, which would be pushing if not exceeding reccomended total combine weight. Johny Law looks for things like that. It's your vessel and you're the Capt., so do what you want.

alright,, thanks,, i know the newer boats alot of guys run with bags but i havent seen the older ones with it. Cause i want to produce a bigger wake for wakeboarding..

Oh and johny law doesnt affect me on the small lakes i wakeboard on, we dont hit the bigger lakes cause the small ones are more private, secluded, usually GLASS and have no cops, they have no reason to be there really.

just wanted to know if the boat can handle it.

My 78 martinique has the same hull as your SN.

I usually add 1 large (600 lb IIRC) fat sac in place of the rear seat bottom, but I have added two, one bigger and one smaller 350 lb side sac in back. If I had 2 side sacs, I would have probably tried that combo too.

Now I do have a redone floor, all plywood and it's definitely heavier than the stock stuff was. I did even run a fat sac or 2 when I ran it for a brief time before redoing the floor and interior.
You'll be fine.