FrankR
Web Wheeler
Reged: 02/01/04
Posts: 10225
Loc: Columbia, SC
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Re: IT'S FAST. REALLY, REALLY FAST
07/02/12 06:10 AM
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292 was a torque monster. A lot of dirt racers still use them, I think.
At only 2800 dry weight, you may have enough blade area and not need the larger diameter. Figure your slippage using theoretical/actual top speed. Some say 15% slippage is desirable, but I always liked it below 10% if I could get it. It helps to do your prop trials fully loaded - or at least half-loaded. The speed you can make with a stripped boat is almost never real world and can lead to serious inefficiencies when loaded.
Frank
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'89 G-Raider Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 155k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, 165A alt., Lifeline AGM, Rust-Oleum
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