1994 Mariah Z222
7.4l engine
Bravo Outdrive
Captains Call Exhaust
SX trim Tabs
Current Prop Setup: Mercury Mirage Plus (No Plugs)
The boat gets out of the hole really well, but lacks the top speed I would expect. The engine was freshly rebuilt back in May of this year. I just noticed the prop cavitates very badly when the exhaust is switched from captains call to the prop. Is there any chance that having the holes open on the Mirage plus prop would be causing the loss of RPM. Please see the prop calculator below. Any help would be greatly appreciated!
7.4l engine
Bravo Outdrive
Captains Call Exhaust
SX trim Tabs
Current Prop Setup: Mercury Mirage Plus (No Plugs)
The boat gets out of the hole really well, but lacks the top speed I would expect. The engine was freshly rebuilt back in May of this year. I just noticed the prop cavitates very badly when the exhaust is switched from captains call to the prop. Is there any chance that having the holes open on the Mirage plus prop would be causing the loss of RPM. Please see the prop calculator below. Any help would be greatly appreciated!