Speeds 31ss
#12
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Gosh!! I wonder now how fast my Sonic 30SS will go with two NA 650's?? I have both 1.36 & 1.50 drives.... I am picking the engines up Sunday to dress them out.
What would be the expected speeds @ 5500-6000rpm??? These engines will love that rpm range
What would be the expected speeds @ 5500-6000rpm??? These engines will love that rpm range
#14
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Thanks Pure Energy!! I was slow in replying... since I am now retired I was at the lake and no internet access there yet..... I would be quite happy with the "90's" figure. It might be a little scary up there!!
#15
Charter Member #1055/Moderator
Charter Member
90 mph in a 31 sonic is almost boring in flat water. Absolute rock solid stable. The wind may stretch out your face and be scary looking, but the boat won't scare you!
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#16
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That's great to hear! My Formula 312 at 87 starts to get a little wild, but I don't spend enough time at those speed in it to learn how to drive it. It just was not designed for it with the engines it has now. I also have to admit after last summers experiences, I tend to treat the engines a lot better and I don't have but maybe 10 hours on them so far. I am really looking forward to the Sonic experience!!
#17
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Join Date: Dec 2003
Location: humble texas
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I have a 2004 31 ss with 496 ho and 7 hrs on the motors, flat water 3/4 fuel, full of fresh water, a/c, power inverter, gear and 4 people on flat water 74 gps running stock bravo 1 26 props at 4800 rpm looking for a little more when the motors break in and in some chop.