One of the five becomes a Six
04-01-2016, 12:27 PM
#272
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the 8.3 is a monsta
Last edited by F-2 Speedy; 04-01-2016 at 12:38 PM.
04-01-2016, 04:33 PM
#274
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Join Date: Feb 2001
Location: Crystal River Fl,USA
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Chief really built some power into it . The whipple 8.3s are bad ass, it easily pulls the 17.5 x 34 5 blade merc cleavers now to 55-5600. Ran upper 90s easily, to rough to hang it out.check out the t shirt
Last edited by Zero Patience; 04-01-2016 at 04:37 PM.
04-02-2016, 08:56 AM
#275
Registered
That's sweet, and now I really have regrets not buying whipples. About how much power do you think you are making with the upgrades? Oh, and do you intend to run 5 blades over 4 blades, and if so, where are the advantages?
04-02-2016, 11:24 AM
#276
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Curious, what RPM did you turn the 34's to with the old setup, and how much boost?
How much boost with the new setup?
04-02-2016, 07:07 PM
#277
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It would only turn about 4800 with the new props, that was the reason for the upgrades. That was at 6 pounds of boost. The whipples make boost much sooner. And about 3 psi more so far. I will let the owner tell what the results are. They are dramatically greater. The boat is now fun to run. See you in LOTO for the reunion.
04-02-2016, 08:31 PM
#278
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Would be interesting to see a comparison 6psi roots vs. 6psi Whipple.
3 psi is about 100hp so the rpm change makes sense. Didn`t try to run 9psi with the Roots?
3 psi is about 100hp so the rpm change makes sense. Didn`t try to run 9psi with the Roots?
