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Thread: 15x13 or 15x12 Prop
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07-02-2019, 04:49 PM #11
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07-02-2019, 05:13 PM #12
What boat/ballast are you guys running?
2019 Supra SL450
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07-02-2019, 05:28 PM #13Junior Member
- Join Date
- Jun 2019
- Posts
- 15
I have a 2018 craz with stock 3000 lbs ballast usually 5-6 adults 1-4 kids
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07-02-2019, 07:05 PM #14
Mojo. About 5000lbs of ballast
Sent from my iPhone using Tapatalk2016 Mojo
2010 Moomba LSV-Sold
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07-03-2019, 06:27 AM #15
16 mojo here with a 15x12 and I'm really impressed by it. We run at least 5k ballast and run around 3300 to 3600 rpm. No experience with a 15x13 though.
2016 Mojo surf edition
1100lbs rear w/ 475lbs piggyback mid/ center 700lbs/ 500lbs IBS/ 600 lbs lead
ACME 2315
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07-03-2019, 09:54 AM #16
If you're at 4k, especially with stock ballast, you should at least try out a 15x12.
2019 Supra SL450
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07-03-2019, 01:39 PM #17
I am running 4000 pounds plus people in the SA, but I am going the other way. Had the 15x13, but hated running high rpms cruising the river and only doing 27 mph unweighted. I am still looking for that happy medium. So far, the 15x14 is doing well. But the 15x13 didn't lack for hole shot pull.
2018 Supra SA400 aka The Ron Burgandy
2011 Sea-Doo Wake 155
2015 Mojo Surf, sold...2013 Axis A22 Recon Edition, sold...2010 Axis A22, sold...2007 Maxum 1800sr3, sold
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07-03-2019, 02:13 PM #18
SA 400 stock ballast plus people and running a 15x12.5
Pulls great and cruises at 38 without ballast at 4800rpm, going above 5000rpm and it doesn’t go any faster and might cavitate.
Does everything I need it to do at wake and surf with ballast and cruise without ballast
Sent from my iPhone using Tapatalk2021 Supra SA 400
2018 Supra SA 400 (SOLD)
Michigan
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07-03-2019, 02:20 PM #19
Guess I am used to the Mojo where I was using the 1235 (14.5x14.25) and could surf at 3500 rpms with over 4k ballast, wakeboard with 3500 pounds around 3700 rpms and cruise at 32 empty at around 3500 as well. That thing seemed to sip fuel for longer days on the water as compared to the SA. But I guess that why it has a bigger tank. Lol. I don't like my boat to be at a steady state over 4000 rpms.
2018 Supra SA400 aka The Ron Burgandy
2011 Sea-Doo Wake 155
2015 Mojo Surf, sold...2013 Axis A22 Recon Edition, sold...2010 Axis A22, sold...2007 Maxum 1800sr3, sold
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07-04-2019, 09:40 AM #20
How will the RPMs be when wakeboarding at 23 mph with the 15x12.
Sent from my iPhone using Tapatalk2016 Mojo
2010 Moomba LSV-Sold