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502 map mpi in a crownline video

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Old 10-25-2020, 09:27 PM
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Default 502 map mpi in a crownline video

So its been a long road but I've got the Crownline back together and the 502 map mpi engine broke in with 10 hours on it. This boat has had the engine in and out 3 times. At the end of the day I decided to lean on her a little bit. 64 mph with a 21 4 blade rev 4 on my gps app. I didn't hold it but soon as it felt like it quit climbing I backed off. GPS said 64. I plan trying a 24 four blade and a 23 mirage plus. Very stable handles like a sports car. Drive it up river 70 miles on only $50 of 93 octane so very affordable cruising. Anyone have a clue what kind of top speed I can see with the 24 bravo one 4 blade or mirage plus 23p prop?



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Old 10-25-2020, 10:52 PM
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Based on experience with some of my boats a 23 Mirage Plus will run similar speeds to a Bravo 1 24"P perhaps 1 - 2 mph faster. It will depend on the %prop slip on your hull but with a 1.5 gear ratio and 4800 rpm, I ran around 67 mph with a 23 Mirage Plus.
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Old 10-26-2020, 01:11 AM
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70 miles of boating on $50 worth 93 octane???? You must be getting 93 octane for about $1.29 then
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Old 10-26-2020, 09:51 AM
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sounds and looks great, What was your RPM, I guessing close to 5K
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