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jet boat performance

  • Karma: +25/-0
JBP , SBC to BBC Cruiser Swap
« on: July 15, 2009, 09:21:48 PM »
These folks drove 1000 miles from NM last nite to hang out on the Central Coast while we swapped some HP into this Beautifull open bow cruiser , seems this boat was produced with a late model SBC factory roller motor , Installing about 450 HP BBC, mor pics top come Tom

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jrork

  • Karma: +4/-0
Re: JBP , SBC to BBC Cruiser Swap
« Reply #1 on: July 16, 2009, 06:45:21 PM »
Looks like a cherry Tommy.  Setback pump????
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jet boat performance

  • Karma: +25/-0
Re: JBP , SBC to BBC Cruiser Swap
« Reply #2 on: July 17, 2009, 07:45:44 AM »
Looks like a cherry Tommy.  Setback pump????

RE "set back" Yes John however its  a "marginal job" IMO  don't care for the rigging stlye ,poor fit , attack angles wrong (jets set incorrectly) We'll have Josh work some magic on the setup once the Big motor is ready next week More pics to follow ..
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nathan

  • Karma: +0/-0
Re: JBP , SBC to BBC Cruiser Swap
« Reply #3 on: July 17, 2009, 11:28:51 PM »
Tom, does that setup pull from a second inlet at the bottom of the boat to feed water to the motor, or is it jet pump fed?

im guessing, by the water pump, it has a second inlet..
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jet boat performance

  • Karma: +25/-0
Re: JBP , SBC to BBC Cruiser Swap
« Reply #4 on: July 18, 2009, 08:14:22 AM »
Tom, does that setup pull from a second inlet at the bottom of the boat to feed water to the motor, or is it jet pump fed?

im guessing, by the water pump, it has a second inlet..

Nathan on the sbc the "raw water " is supplied by the jet , the excess is "bypassed" and thethe waterpump which is designed for fresh and salt water use is a circulating pump Tom
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jet boat performance

  • Karma: +25/-0
Re: JBP , SBC to BBC Cruiser Swap
« Reply #5 on: July 21, 2009, 09:25:55 PM »
Presto  Change-o Here's the "Grunt"  ;D

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Nick

  • Karma: +1/-0
Re: JBP , SBC to BBC Cruiser Swap
« Reply #6 on: July 21, 2009, 09:35:54 PM »
Nice work Tom, my dad has pretty much the same boat. 21' Renegade (Pretty sure you got a Shockwave there wich I'm told is the same) What year is that one? My pops is a '01. I can't believe that thing came stock with a 350 in it, musta been a dog...wont be after you guys are done I bet.

Keep the pics coming.
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jet boat performance

  • Karma: +25/-0
Re: JBP , SBC to BBC Cruiser Swap
« Reply #7 on: July 23, 2009, 09:51:29 AM »
Fired the new big block yesterday and broke the cam yesterday ,in its lake ready today we should have some comparison "numbers" soon Tom 

last Thursday

Yesterday:

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