Here We Go Again III
#52
#53
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From: Connecticut

#54
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Joined: Feb 2008
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From: Connecticut
[QUOTE=SS930;3713435]Yeah, but it's an atificial number, it's over propped so while the RPM might be low for the speed, the load is quite high at that RPM. Sounds like you need to go down a couple sizes on those props.




#55
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From: Plainville/Old Lyme, CT Boca Raton, FL
In flat water the 37OL is far superior to the 42X, but I'll just keep checking here, http://www.nhc.noaa.gov/ , and pick my day to run him
#56
[QUOTE=kreed;3713440]
If the boat won't spin the props past 4500 rpm, assuming the engines are okay, it sounds like the boat is really over propped. At 3800-4000 RPM, there has to be a lot of load on those engines at "cruise" with those props. Yes the RPM's sound nice, but the engines are heavily loaded.
Think driving down a flat road in your car in fourth gear at say 4300 rpm @ 50 mph vs lugging the engine up an 8° grade in fifth or sixth gear a lower RPM... In the first example the engine is spinning a little higher, but there's far less load and typically less fuel consumption. In the next example the engine might be spinning fewer RPM, but there's a lot more load on the engine and the fuel consumption might be higher.
Not to mention top speed will suffer significantly when over propped like that.
Think driving down a flat road in your car in fourth gear at say 4300 rpm @ 50 mph vs lugging the engine up an 8° grade in fifth or sixth gear a lower RPM... In the first example the engine is spinning a little higher, but there's far less load and typically less fuel consumption. In the next example the engine might be spinning fewer RPM, but there's a lot more load on the engine and the fuel consumption might be higher.
Not to mention top speed will suffer significantly when over propped like that.
#57
In flat water the 37OL is far superior to the 42X, but I'll just keep checking here, http://www.nhc.noaa.gov/ , and pick my day to run him 


Now Kev on OTOH has a similar size boat and seems to be looking for a run... If one of the two of us can get off the dock, that could be fun.

I may be out for a while on Sat for a shake down run (if the weather on Friday is decent). I might have some tuning to do, we'll see once it's in the water.
#58
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From: Connecticut
[QUOTE=SS930;3713488]I wouldn't say far superior in flat, but I would certainly agree having 5 extra feet is a huge advantage in the rough. If you are looking for a race, I am more than willing to kick some Cigarette ass all over the sound this weekend! Come get it!
Wow Scot, alittle bit of an ego 1 there, but Adam seems pretty confident. This is going to be a good race with equal power and both #6 boats. So if Adam says Scot has the advantage in flat water...and Scot says Adam has the advantage in rough water, this race should happen in 1 to 2's so both boats handle about the same! NOW im excited about boating!
Wow Scot, alittle bit of an ego 1 there, but Adam seems pretty confident. This is going to be a good race with equal power and both #6 boats. So if Adam says Scot has the advantage in flat water...and Scot says Adam has the advantage in rough water, this race should happen in 1 to 2's so both boats handle about the same! NOW im excited about boating!

Last edited by kreed; 06-20-2012 at 10:06 AM.
#59
I wouldn't say far superior in flat, but I would certainly agree having 5 extra feet is a huge advantage in the rough. If you are looking for a race, Frank has similar package, or you can play with something larger like the Mad Hatter family Flamer soon enough! I don't think there will be may local vee's that will run with Flamer in the rough... or flat water for that matter! 
Now Kev on OTOH has a similar size boat and seems to be looking for a run... If one of the two of us can get off the dock, that could be fun.
I may be out for a while on Sat for a shake down run (if the weather on Friday is decent). I might have some tuning to do, we'll see once it's in the water.

Now Kev on OTOH has a similar size boat and seems to be looking for a run... If one of the two of us can get off the dock, that could be fun.

I may be out for a while on Sat for a shake down run (if the weather on Friday is decent). I might have some tuning to do, we'll see once it's in the water.


