96motorhead
Well-Known Member
- Joined
- Feb 9, 2015
- Messages
- 336
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I have an 89 eliminator tahoe 21ft open bow boat with the 330hp 454 and bravo 1 drive. We were out at the lake all last week and we did a few speed runs and I learned that the boat was running at 5300 rpm wot trim full up. Currently the boat has a 23p mirage 3 blade prop and it ran 65 mph consistently. The problem is when my dad bought the boat originally he said he tried a 3 blade 24p and 25p mirage prop and when he took corners sometimes the boat would cavitate really bad. My question is how can I utilize the extra 500-600ish rpm and gain a little bit more top speed but loose the cavitation in the corners? Would upgrading to a 4 blade prop solve this problem?
Thanks in advance
Thanks in advance