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Thread: Phantom 25 1985 - Merc 450R
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04-21-2021, 08:18 AM #15000 RPM
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Phantom 25 1985 - Merc 450R
Hi!
Hope all are well
Then I have put the 450R in the shopping basket, and if I am lucky I will receive it in August since the dealer made an order 5 months ago. Lucky me.
I will post the rerigg and performance data.
During the 23 years I have owned my boat, I have run several engine configurations:
Johnson V8 3.6 GT 300hp + = 75 mph
Promax 300 SVS - 75 mph
Twin Merc 2.5 Efi SS w/PCU = 87 mph
Verado 350 Sci = 81,5 mph
Verado 400R = 89 mph
So we see what we can get out of the 450R. Possibly 95 mph with the same type of propeller - Max5. Maybe more with a 5bl Hill / Merc cleaver.
Look forward to it !
Cheeers, Toffen
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powerabout, Greg G thanked for this postTrimmed Out15, HydroSkreamin, Rak Rua, wicheckmate, 89LASER, Capt.Insane-o, NAVISPEED1, sonicss33, Charli, Velocity72 and 9 others liked this post
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04-29-2021, 12:24 PM #2
Very nice Toffen, can't wait to hear more about it.
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Toffen liked this post
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04-29-2021, 03:47 PM #35000 RPM
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Thanks Jared The engine is likely to arrive in October, and then we will lots of time and fun rigging it. Its like Christmas x 1000
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tux974 liked this post
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04-29-2021, 04:49 PM #4
yep... my math predicts 94-95 with the 450
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Toffen thanked for this post
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04-29-2021, 05:59 PM #5Team Member
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The jump from 350 to 400 was more then I would have expected
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04-29-2021, 08:54 PM #6
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Toffen thanked for this post
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04-29-2021, 09:10 PM #7
Congratulations. You are always upgrading.
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Toffen thanked for this post
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04-29-2021, 10:35 PM #8
I was going to pm you. I just got a 450r in. It's a 20" rh sportmaster but it has a straight skeg with wingplate bracket
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Toffen thanked for this post
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04-30-2021, 06:15 AM #95000 RPM
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04-30-2021, 06:16 AM #105000 RPM
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04-30-2021, 05:58 PM #11
Here’s an idea... go back to twins! I bet with 2 450’s you will see 120!
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Toffen liked this post
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05-01-2021, 06:55 AM #125000 RPM
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05-01-2021, 11:06 AM #13
Keep us updated, ultra cool rig!!!
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Toffen thanked for this post
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05-02-2021, 09:46 AM #145000 RPM
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Hi
I have a straight skeg on my 400R Sportmaster. I experienced torque issues with my HD 350 Sci lower unit, but no such issues with the SM 400R. I am a little uncertain if I am to order a cambered skeg on my 450R SM or not. My gut feeling is that a cambered skeg will make the boat more predictable at WOT, especially reaching close to 100 mph. What do you think? The boat runs without any chinewalk and steer straight at WOT with the 400R.
Will the cambered skeg steal speed at cruise speed?
Cheeers, Toffen
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05-27-2021, 04:10 PM #155000 RPM
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