Outboard Powered 330 SS
12-22-2019, 01:21 AM
#51
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Hogie Roll, this is an experiment and so far is working fine but I know the numbers can improve quite a bit since everybody around is not an engineer but just handy man trying to be knowledgeable. Its amazing the lack of knowledge among the businesses doing repowers and conversions. I think I need to lower the engines several inches inn order to avoid cavitation.
12-22-2019, 08:34 AM
#53
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Hey hoggie roll, you say raise them, I thought lowering them since I get a bit of cavitation. What do you think? WOT is 54mph at 6000 rpm's.
12-22-2019, 08:52 AM
#54
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This is really cool, if you are getting 1.6 mpg at 42 mph that is awesome. My 330 with 496's was at 1 mpg no matter what. you just picked up a ton of range... What is the plan for the engine compartment?
12-22-2019, 08:58 AM
#55
Gold Member
Gold Member
The figure of 54 mph @ 6,000 revs is pretty impressive. There might be more in it if you can get the revs up a little by playing with engine height and maybe props. Depends what you're looking for but I'd say you've done very well for a first run.
RR
12-22-2019, 09:19 AM
#56
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He may have thought the slower figures (42 mph) was WOT, I wasn't too sure but you've cleared that up now.
The figure of 54 mph @ 6,000 revs is pretty impressive. There might be more in it if you can get the revs up a little by playing with engine height and maybe props. Depends what you're looking for but I'd say you've done very well for a first run.
RR
The figure of 54 mph @ 6,000 revs is pretty impressive. There might be more in it if you can get the revs up a little by playing with engine height and maybe props. Depends what you're looking for but I'd say you've done very well for a first run.
RR
12-22-2019, 03:22 PM
#57
Registered
Are the engines cavitating at WOT? Or just when accelerating?
Mine will cavitate if I go WOT from low speed. I just manage it with less throttle. But I still have great acceleration regardless of this. My boat is probably 2k lbs lighter though.
Did you trim them up a lot while testing? Like until it slowed down?
12-22-2019, 03:58 PM
#58
Registered
I’m forgetting this is a 280, not a 330. there should be something more speed in there.
im on the west side right now, but possibly heading over there is the next few days. I could stop by and check it out. Are you spinning out or in?
im on the west side right now, but possibly heading over there is the next few days. I could stop by and check it out. Are you spinning out or in?
12-22-2019, 06:59 PM
#59
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Picture above appears to be spinning out. Also I'd like to bring up that you are running 3 blades. We are rigging the contender out with the same engines in the upcoming weeks. Already have a set of merc revolutions here for them when engines arrive. The 4 blades would really help you on the hole shot.
12-22-2019, 09:45 PM
#60
Registered
Picture above appears to be spinning out. Also I'd like to bring up that you are running 3 blades. We are rigging the contender out with the same engines in the upcoming weeks. Already have a set of merc revolutions here for them when engines arrive. The 4 blades would really help you on the hole shot.
