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76Mantra455

  • Karma: +7/-0
Re: 455 Olds Refresh
« Reply #100 on: June 08, 2024, 08:29:20 PM »
A few more


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76Mantra455

  • Karma: +7/-0
Re: 455 Olds Refresh
« Reply #101 on: June 09, 2024, 04:44:33 PM »
Got most of the plumbing done today. Got new fuel pump on, oil pressure, header lines. All that is left is exit water and wire it up and alternator installed.


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96Laveycraft21Xt

  • Karma: +0/-0
Re: 455 Olds Refresh
« Reply #102 on: June 10, 2024, 11:36:16 AM »
Ya im not thinking the manifold is limiting anything.  I think the heads are limiting.   Boat is looking great!  bet it will be a blast with the AA impeller.   Is there a certain MPH you are shootin for?
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  • Boat #1: '96 Laveycraft 21' XT Ski
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76Mantra455

  • Karma: +7/-0
Re: 455 Olds Refresh
« Reply #103 on: June 10, 2024, 11:38:24 AM »
Have a detailed A from mpd with inducer, bowl has been detailed same as nozzle. I honestly don?t know what mph I will get to.


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76Mantra455

  • Karma: +7/-0
Re: 455 Olds Refresh
« Reply #104 on: June 13, 2024, 09:55:59 PM »
We freaking made it to the Avi
!!! Had to switch out the whole fuel delivery at Elsinore today. We worked on it for hours trying to get the mechanical pump going got no success. We called everywhere and found a Holley blue electric and we wired and plumbed it in the parking lot. Got to love zip ties.


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96Laveycraft21Xt

  • Karma: +0/-0
Re: 455 Olds Refresh
« Reply #105 on: June 14, 2024, 08:33:21 AM »
Congratulations! boats looking sweet.  Enjoy the weekend.  I cancelled my trip to havasu this weekend because the DIY pool reno taking too long. 
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  • Boat #1: '96 Laveycraft 21' XT Ski
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76Mantra455

  • Karma: +7/-0
Re: 455 Olds Refresh
« Reply #106 on: June 14, 2024, 08:39:28 AM »
Thanks!!! Still looks good for cosmetic original for a 76


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76Mantra455

  • Karma: +7/-0
Re: 455 Olds Refresh
« Reply #107 on: June 15, 2024, 09:19:44 PM »
Had a great time boat ran great till a freeze plug popped out ? limped it back the the beach then got it on trailer


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96Laveycraft21Xt

  • Karma: +0/-0
Re: 455 Olds Refresh
« Reply #108 on: June 18, 2024, 01:18:37 PM »
Look at that future jet boater in the making! haha

Wonder if the new pump work increased the water pressure going into the block.  Do you have a pressure gauge in the system?  Did the plug pop out cruising or more "spirited" driving?
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  • Boat #1: '96 Laveycraft 21' XT Ski
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76Mantra455

  • Karma: +7/-0
Re: 455 Olds Refresh
« Reply #109 on: June 18, 2024, 07:18:06 PM »
Popped out during cruising have not really got on it yet? it must of been a faulty plug just got done putting another one in. The brass ones don?t fit very snug. I?m also routing 2 individual water dumps instead of 2 into 1? 2 5/8 inch dumps should be plenty to relive any pressure


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76Mantra455

  • Karma: +7/-0
Re: 455 Olds Refresh
« Reply #110 on: June 22, 2024, 09:31:43 PM »
Took the old mantra out today the double water dumps kept oil temp down and no freeze plug popped out. Got the water dialed in with the rpm timer. Seems like we are done testing and ready to have fun.


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76Mantra455

  • Karma: +7/-0
Re: 455 Olds Refresh
« Reply #111 on: June 22, 2024, 09:58:55 PM »
Quote from: 76Mantra455 on June 22, 2024, 09:31:43 PM
Took the old mantra out today the double water dumps kept oil temp down and no freeze plug popped out. Got the water dialed in with the rpm timer. Seems like we are done testing and ready to have fun.


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96Laveycraft21Xt

  • Karma: +0/-0
Re: 455 Olds Refresh
« Reply #112 on: June 24, 2024, 08:56:43 AM »
Quote from: 76Mantra455 on June 22, 2024, 09:31:43 PM
Took the old mantra out today the double water dumps kept oil temp down and no freeze plug popped out. Got the water dialed in with the rpm timer. Seems like we are done testing and ready to have fun.


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What lake are you at?  Are you running an oil cooler?   Ive never had an oil temp sensor in my boats so im not sure what temps i get to
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  • Boat #1: '96 Laveycraft 21' XT Ski
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76Mantra455

  • Karma: +7/-0
Re: 455 Olds Refresh
« Reply #113 on: July 04, 2024, 01:16:34 PM »
We are at buena vista. No oil cooler we just monitor the oil temp so far it has not got hotter then 180. I did a 6 second send got to almost 80 and that was in choppy water


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75 fantasy

  • Karma: +1/-0
455 Olds Refresh
« Reply #114 on: July 05, 2024, 07:34:58 AM »
Dude, all your hard work is paying off!


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  • Boat #1: 2019 Avalon
  • Boat #2: 1982 Cole Firestar
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