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Old 07-30-2009, 08:53 AM   #1
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1997 Fountain 38 SC
23 Hydro Quad 4 vs "Rec. Labbed" 24 Quad 4

Running 502 Mag MPIs 5050 RPMs @ WO with 23 Hydro.Quad 4s. Now I have purchased 24 pitch Q4s which were "rec labbed" @ Hydromotive. Anyone have a good guess where the RPMs will end up with these 24s ?
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Old 08-10-2009, 04:11 AM   #2
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Lightbulb

Ill have a guess 1 inch pitch equalls @ 250 rpm, labbing maybe 200rpm ish , Im gunna guess between 5000-5100 rpm

Last edited by olmo40; 08-10-2009 at 05:39 PM. Reason: Read with out glasses
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Old 08-10-2009, 06:41 AM   #3
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2006 Kryptonite 29'
probably right at 5000rpm WOT

Lose 250rpm for the extra inch, gain 200rpm for the labbing.
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Old 08-12-2009, 06:39 PM   #4
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1997 Fountain 38 SC
Haven't got the new props on yet but can post later when I do.
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