Weighting down my 1983 Supra Rider

[83rider]

I've been running around 10.5-11. I have 150 pounds worth of sand in the front. So I think more weight up front may be what I need. Should I only run 1 of the 750's on the surf side and not both sides? I am using a suck gate as well. Thanks for your help! I know I have to be close.

[NorCalPR]

If youre using a suck gate, run 750s on both sides.

Yeah, youll want more weight in the nose. You could also try experimenting with a bigger paddle or more angle to delay the convergence more

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[83rider]

Would 400# be a good place to start for bow weight?

[jtryon]

yes, i run a 650 up front if i don't have any passengers sitting there. if i have passengers up front, i'll put it under the seat and put enough weight in it to equal 650 with passengers.

[83rider]

Okay I will try that hopefully this weekend if the weather will hold off. I'm also running a acme 1458 prop I'm seeing where everyone else is running the acme 913 so I'm thinking maybe this could be part of my problem?

[jtryon]

that's definitely going to be a problem when trying to get on plane. the stock prop is a 13" pitch, so you're even less than that with your 14" pitch prop. when i had my stock 13" pitch prop i couldn't put more than 1000lbs in the boat without having a problem planing out. now with my 10.5" pitch i can get on plane no problem with 2000+ lbs in the boat.

nettles has great prices on props, i got my 913 for $375 shipped a few years back. i checked and your prop is a RH though, and the 913 is LH. you would want the acme 912.

[83rider]

What kind of rpms do you run with the 913?

[jtryon]

What kind of rpms do you run with the 913?

off the top of my head i don't know, but it's not super high when running full surf ballast. i'll have to get back to you in a week or so once i get back out there.

top speed with the 913 is around 35 but i've hit 38 once or twice on a perfectly calm day. that was just out of curiosity, i don't run the motor at high rpm's like that for long.

[83rider]

Gonna try and order the 912 from nettles today. Last year the motor was straining pretty hard trying to plane out. Also how does the 912 do with no ballast?

[jtryon]

it will feel like a rocket ship out of the hole with no ballast, you will be pleasantly surprised. you'll lose some top end speed, but like i said you can still cruise in the low 30 mph's with no problem.