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08-26-2009, 07:26 PM
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#1
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32 thunder rick
 Gold Member
Join Date: Jul 2002
Location: pa
Posts: 1,923
2000 32 active thunder
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28 thunder set ups
any 28 thunder owners with 500efi what prop are you running at what gps speed and rpm,, been trying all summer to get my buddys 28 dialed in. works best with a left handed 24 4 blade it hit 69 on gps at 5200, im thinking he should be able to spin a 26 labbed. he has a 26 labbed that spins 5000 and only low 60 mph i think it has a bad slippage problem.
thanks
Last edited by rssteiny; 08-26-2009 at 07:29 PM.
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08-26-2009, 10:18 PM
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#2
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Platinum Member
 Platinum Member
Join Date: Nov 2003
Location: Clinton N.J.
Posts: 875
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I think the year makes a differance on the 28's. Maybe Pat will chime in. Doug
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08-26-2009, 10:41 PM
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#3
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Platinum Member
Platinum Member
Join Date: Jan 2006
Location: Stratford, CT
Posts: 2,901
2005 Active Thunder 28
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Not sure if it will help, but my 525 boat spins a 26 BBlades labbed 4 blade bravo at 5200 RPM and about 73 MPH.
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08-26-2009, 10:59 PM
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#4
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Registered
Join Date: Oct 2007
Location: marbury, md
Posts: 898
98 ActiveThunder Tantrum
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http://go-fast.com/Prop_Slip_Calculator.htm
try this prop slip calculator, it should cut out a lot of guess work
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08-27-2009, 07:48 AM
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#5
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32 thunder rick
Gold Member
Join Date: Jul 2002
Location: pa
Posts: 1,923
2000 32 active thunder
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This is a 2002, based on the 525 boat spinning a 26 at 5200 and 73 the 500efi may only spin a 24 at 5200 and 69-70 sounds about right.
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08-27-2009, 08:11 AM
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#6
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AT Cult Member #2
Join Date: Apr 2005
Location: Boston, MA
Posts: 4,636
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Rick,
You have the right prop on that 28.
Steve
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08-27-2009, 05:21 PM
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#7
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32 thunder rick
Gold Member
Join Date: Jul 2002
Location: pa
Posts: 1,923
2000 32 active thunder
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Quote:
Originally Posted by slboatdrinks
Rick,
You have the right prop on that 28.
Steve
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What the 24 or the 26 ??
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08-27-2009, 06:02 PM
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#8
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Active
Platinum Member
Join Date: Oct 2000
Location: Pompano Beach, Florida
Posts: 2,560
Cult Founder, 1993
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Stock RH 26 Bravo on 2004 or newer 28 with a 525 runs 73-75.
Stock LH 24 Bravo on the 2002 back 28 with a 500 runs 69-71.
Lab finished Merc prop up two pitches and gain 2-3.
Full time mufflers, scrub 5. (don't ask)
__________________
I'm not here for a long time. I'm here for a good time.
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08-27-2009, 06:11 PM
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#9
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AT Cult Member #2
Join Date: Apr 2005
Location: Boston, MA
Posts: 4,636
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Quote:
Originally Posted by rssteiny
What the 24 or the 26 ??
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24 LH.
Or just look at Pat's post.
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08-27-2009, 06:20 PM
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#10
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AT Cult Member #2
Join Date: Apr 2005
Location: Boston, MA
Posts: 4,636
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Quote:
Originally Posted by OCDACTIVE
How about a 1999? with a 500?
And I have to be that guy............. Gibson Clamp on Mufflers.. They swore there would be no performance loss.... Did I get Fanageled??
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Your answer is in his post:
Stock LH 24 Bravo on the 2002 and back 28, with a 500 runs 69-71.
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