Results 11 to 20 of 93
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08-11-2020, 01:51 PM #11
Probably +8% all round if slip I the same.
Sent from my iPhone using Tapatalk2017 Moomba Craz
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08-11-2020, 01:53 PM #12
The prop calculator I use is showing about 200-250 rpm increase with the same slip.
2020 Supra SA
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08-11-2020, 01:54 PM #13
That’s 8%.
Sent from my iPhone using Tapatalk2017 Moomba Craz
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08-11-2020, 01:59 PM #14
Pretty much yep
2020 Supra SA
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08-11-2020, 02:31 PM #15
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08-11-2020, 02:40 PM #16
I would be happy surfing at 3600rpm with a 16x13.9
Do you have the prop slip calculator?
Sent from my iPhone using Tapatalk2021 Supra SA 400
2018 Supra SA 400 (SOLD)
Michigan
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08-11-2020, 03:01 PM #17
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08-11-2020, 04:42 PM #18
I thought lower Pitch was supposed to produce lower RPM, and lower Top Speed.
2019' Moomba Max
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08-11-2020, 05:34 PM #19
I was just up at Tahoe with 3k of people and lead and running 3800 rpm at 11.4.
DDNorCal
2019 Supra 450 SL, 1,000 lb lead and 3145 prop
Sold - 2006 LSV 3430 Ballast, 1847 Prop, all around great boat
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08-11-2020, 08:19 PM #20
I would think the 16x15 would be sufficient. I run the 16x17 now and all 100% full ballast+ 500 lbs lead distributed evenly side to side + crew of 4-5 adults and I have not experienced any lag pulling a surfer. 400 engine. I thought it would be necessary to go down to 16x15 but have not been hurting for it. I do plan to get a second prop and it'll be 16x15 but frankly, not out of necessity. Just my 2 cents.
I just cant imagine what I'm gaining by moving down to a 13"pitch. Loose speed, increased RPM. Considering how my boat handles it now, I just don't see the payoff for what I'd be giving up.2020 Supra SL 400
2015 Moomba Mojo(Sold)
2018 Yamaha Waverunner(Just to fool around)
2018 F150 Lariat
sport edition, 3.5lt ecoboost