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Thread: 400 vs 450 raptor motor
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02-21-2020, 11:13 PM #212019 Supra SL450
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02-22-2020, 10:12 AM #22
For surfing and lead, we run 500# on days with bigger crews 6-10, and 1000# on smaller crew days (3-4). The 500#s stays on the boat all the time. No crazy rpms and no issues out of the hole.
For boarding, I run the beginner autowake setting, 500#s lead, and passengers. It's more than enough for anyone on the boat. Will the boat strain with advanced settings, full ballast, and wake speeds - yes. Dealer told me it would. I have not tried it.
For the prop, not sure. I thought I had a pic on my phone to remember the model number, but it was the old prop from my last boat. Did not want to guess.
Elevation is Knoxville TN, probably 1000'.
Sent from my P00I using Tapatalk2018 Supra SL400
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02-23-2020, 12:28 AM #23Senior Member
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- Aug 2018
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I test drove several boats. Supra SA and SL both with 400's and 16x15 prop. Both maxed out at sea level at around 37-38 mph. I also drove FI23 and RI237 with the upgraded engine that compares to the 450. Maxed out top end speed about the same but RPM's were higher for those boats. Don't know what prop they were running and I believe the gear ratio is similar to the 1.76 of the newer Supra models. Bottom line is with a surf or wake board prop you can count on 35-38mph with either the 400 or the 450 depending on altitude if you are running without ballast.
Thanks - D
2020 Supra SL450
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02-23-2020, 01:55 AM #24Senior Member
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At 1300’ with 1100 lead and crew of 5 my 2020 SL 450 could not pull the 16x17 consistently at 11.4 and above. Save your money. I have a 16x16.25 OJ on now and may move to the 16x15. For some reason I think the 16x15 will be the best. It’s just gonna have to be running high 3000s. That’s the way it is.
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02-23-2020, 07:10 AM #25
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02-23-2020, 03:20 PM #26
Has anyone tried the 15.5x18 (speed/surf) prop that Moomba has as an option right now?
Sent from my iPhone using Tapatalk2019 Makai
Raptor 450 w/ 1.76 Trans
WakeMakers 1350s in the rear & 1K in Lead
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02-23-2020, 04:08 PM #27Senior Member
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I sure did on my Makai. It was ALMOST doable. Could not quite consistently pull heavy surf loads. It was damn close—but if the water was a bit rough or it was really hot and humid I could not get it to hold surf speeds. I was heavy—1500 lead and Bagbusters. 1300’
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02-23-2020, 05:53 PM #28
So would I be better off getting another 15.5x16.5 as my spare/backup prop? I was going to try the 15.5x18 one as it was said to lower RPMs a little bit and still pull. I have no complaints with the RPMs but liked the idea of lowering them while still maintaining the same performance.
2019 Makai
Raptor 450 w/ 1.76 Trans
WakeMakers 1350s in the rear & 1K in Lead
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02-23-2020, 06:36 PM #29Senior Member
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Depends what you run for ballast. It did not do it for me, I sent it back. 2019 450 Makai.
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02-23-2020, 06:55 PM #30Senior Member
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I also ran a 16 X 16.25 on it for quite a while. That also works pretty darn well, I did get just a tiny bit of gel burn from it. But I am talking tiny bit. A friend of mine also has that propeller on his and has not gotten any burn. That particular propeller is an OJ, not sure what number though.
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