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View Full Version : Weighting down my 1983 Supra Rider



83rider
07-18-2016, 03:17 PM
I have a 83 Rider with a 454 im trying to turn into a Wakeboard/Wakesurf boat. What prop and how much weight do i need to put in it and where to be able to surf without the rope and have a decent wake?

gnarlydude
07-19-2016, 10:35 AM
Pm me. I know a guy with the exact same boat. I just talked with him yesterday. He lives in NC and is super smart on Supras.


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Moor
07-19-2016, 12:39 PM
iirc your Rider has a very similar, if not identical hull shape as the early Sunsports. Try searching for sunsport set ups and try some of those suggestions. People here, my self included, have had really good results using a home made wake shaper. Check out the Ghetto gate thread in this subforum :https://forum.supraboats.com/showthread.php?18168-Ghetto-gate-has-gone-mass-production.

83rider
07-19-2016, 02:01 PM
I started my ghetto gate last night and I hope to finish it up this afternoon.

Moor
07-19-2016, 03:20 PM
I think you'll be happy with the results. Post your design and results in the ghettogate thread when your done. I really like the different designs that people have come up with

83rider
07-20-2016, 02:28 PM
17526 Here's a pic of my ghetto gate I finished up last night. Gonna try it on the boat this weekend to see how it does.

gnarlydude
07-20-2016, 02:49 PM
Can you post a few different angles of it, 83rider?

Did you use the same materials list?


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Nickb6
03-06-2017, 12:39 AM
Can I get his contact info? I am looking at buying an '83 Rider off Craigslist and would really like to ask him a few questions.

83rider
05-18-2017, 01:02 PM
I am still trying to dial in my wakesurf wake. I have 2 750# Ronix sacks I put on each side of the dog house and try to use people as well as the ghetto gate. I can go ropeless but I am directly behind the swim platform. Do I need to add more weight to the bow? Any suggestions are appreciated!

NorCalPR
05-20-2017, 01:16 AM
More weight in the nose or increase your speed. Whats your speed?

Note that more speed or more nose weight will take out push and steepness of the wave, so i wouldnt take away people or what you have in the back.

Try 300 or so up front..

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83rider
05-20-2017, 02:22 PM
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
05-22-2017, 12:09 PM
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
05-22-2017, 03:09 PM
Would 400# be a good place to start for bow weight?

jtryon
05-23-2017, 12:24 PM
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
05-23-2017, 07:14 PM
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
05-24-2017, 08:55 AM
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
05-25-2017, 09:33 AM
What kind of rpms do you run with the 913?

jtryon
05-25-2017, 09:54 AM
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
05-25-2017, 10:31 AM
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
05-25-2017, 10:34 AM
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.

83rider
05-25-2017, 11:27 AM
I was worried about turning to many rpms unloaded but I still normally cruise around 20 or so just riding. Will that prop help with the surf wave too?

jtryon
05-25-2017, 11:39 AM
it won't make the surf wave any better, but it will definitely get to and hold surf speeds better when loaded up with ballast.

NorCalPR
05-25-2017, 04:00 PM
If your boat isnt struggling with the weight its not a priority to change it. A prop wont have any effect...

Fwiw i surfed behind my old supra comp and my current brendella dd with a 4 blade 13x13


Get your weight dialed in first and your wave good. Adjust if needed...

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jtryon
05-26-2017, 08:13 AM
i just saw you have the 454 motor--i have a 351 so it's not apples to apples. i would talk with the guys at nettles before ordering, they may have a better recommendation. i would go with the lowest pitch they recommend if you aren't worried about top speed.

83rider
05-27-2017, 11:01 PM
I talked to the guy at Nettles and he said the 912 should be perfect! Now for the wait of it coming in should be here by next Friday just in time to try it out for the weekend!

jtryon
05-30-2017, 09:52 AM
awesome, let us know how it works for you.

korey
06-01-2017, 04:11 PM
I'm running a 1229 on my 454 Saltare and LOVE it! It's 13x11" 0.080" cup 3 blade. Your 912 is a lottle lower pitch than that, and the rider is probably a comparable hull - a little shorter than my Saltare, but i feel like it may be a little deeper too. Probably displaces a similar amount of water.

WOT Unloaded: 4600RPM at 41.0MPH. It sped up and only turns 100 more R's than my old 209. I don't quite understand it, but it's true! The boat is "throw you out of the observer's seat" fast out of the hole now. 4600 rpm is a lot of my 1300 (and aging) big block, but she still feels healthy!

Surfed great with 1900lbs + 4 dudes all day. Decided to throw the long rope in with surf weight at the end of the day, and had NO PROBLEM getting on plane with 1900lbs of ballast and 4 dudes. I was blown away!

I don't love turning this old engine more RPMs all the time, but it sure does feel good...

83rider
06-12-2017, 09:02 AM
I bought the 912 and after the boat was going in reverse when in forward I figured out I needed the 913 so it will hopefully be here by this weekend.

jtryon
06-13-2017, 09:08 AM
damn, nettles should have confirmed that with you before ordering. there's a stamp on the motor that shows what rotation it is.

jtryon
06-14-2017, 12:46 PM
also, there's a correct way to install a new prop, so when you get the 913 in take a look at this: http://www.mastercraft.com/teamtalk/showthread.php?t=29565

scottschmitt
06-15-2017, 04:02 PM
When you use the grinding compound, which metal gets ground down? the inside of the prop or the shaft or both?

jtryon
06-16-2017, 07:28 AM
i believe it's more the prop because the prop is a softer metal (nibral).

83rider
06-16-2017, 09:56 AM
Thanks for the info! I just received the 913 and I will be installing this afternoon. Will hopefully give an update tomorrow!

83rider
06-20-2017, 06:38 AM
Sorry for the late response. The 913 is definitely the deal! I surfed all weekend. My setup was a 800 across the floor in the back and 800 on the surf side plus 4 people. Still working on getting my surf gate to stick. Thinking I may have to pull the waves off the back of my boat to get them to stick.

korey
06-20-2017, 09:45 AM
FWIW, I'm running my 800s even on each side of the doghouse, a ~500 (it was a hand-me-down center ski locker sack and I'm not real sure what it is) in the rear locker, and usually have to add people up front. I stick the Mission Delta Suckgate right to the waves on either side and can surf both sides. 11.4mph port side, 11.2mph starboard.

83rider
06-20-2017, 10:08 AM
Did you not have to take your stickers off using the delta? Also how much weight do you put in the front?

korey
06-20-2017, 11:02 AM
I put my wake shaper right on the waves, which is one solid sticker with clear background (NOT a multi piece vinyl) on my boat and it sticks well. I THINK i'd like to run the shaper a touch further back and/or up, but it sticks best when not applied over the edge of the decal, so I'll take the limitation to keep the cool logo!

Last trip out was my first with the matching 800lb bags so i'm still tweaking. I had to put the heaviest person in the boat up front to get the wave i wanted. I have another 540lb bag that I'll probbably fill half full across the bow seats this weekend to try it out.

Last weekend:
http://i1149.photobucket.com/albums/o588/kamorris2/Mobile%20Uploads/20170610_154924_zpstbsyi9w7.jpg