Beachbummer
Jetboaters Admiral
- Messages
- 3,963
- Reaction score
- 2,883
- Points
- 332
- Location
- Houston TX
- Boat Make
- Yamaha
- Year
- 2008
- Boat Model
- SX
- Boat Length
- 23
I resealed the pump and replaced the impellers with SBT rebuilt impellers on season start. I don't match the numbers on the boatUS review.
I get about 23 at 7000, 32at 8k and 38 at 9k and maybe 45-46 at 10k+ rpm.
In trying to think what else I can do to regain the to speed the boat is supposed to have... The impeller housing looked ok but I wonder if sand could have worn it down.
Im at Sea level and using gps. Boat hits 10k rpm on both engines. Its a 2008. Had it for a couple of years. Did not lose the top end with me, it was this way when I got it. (The oem speedometer was optimistic, gps doesn't lie)
Any other ideas?
It's this right?
Performance and RideSpeaking of operating, we tested the SX230 on a day which wasn’t perfect for speed runs, but did allow us to gather accurate data. The twin 160-hp Yamaha engines put us on plane in 2.5 seconds and we reached 30 mph in 4.8 seconds. We reached a top speed of 50.4 mph and we found our optimal cruising speed to be 28.4 mph at 7000 rpm. At this rate, the SX230 uses 7.6 gallons of gas per hour, which works out to a range of 168 miles as provided by her 50 gallon fuel capacity. Everything about the boat has a good, solid feel of quality. The ability to produce boats of this size with robotics, much like automobiles, eliminates the human error factor. The results seem to make a difference in the end product.One of the yardsticks I use when evaluating any boat is answering the question, “Would I buy this boat myself, if I was in the market for something this size?” The answer to that question is absolutely “yes.” Do yourself a favor. Take a good look at the SX230 from Yamaha.
Test Result Highlights
I get about 23 at 7000, 32at 8k and 38 at 9k and maybe 45-46 at 10k+ rpm.
In trying to think what else I can do to regain the to speed the boat is supposed to have... The impeller housing looked ok but I wonder if sand could have worn it down.
Im at Sea level and using gps. Boat hits 10k rpm on both engines. Its a 2008. Had it for a couple of years. Did not lose the top end with me, it was this way when I got it. (The oem speedometer was optimistic, gps doesn't lie)
Any other ideas?
It's this right?
Performance and RideSpeaking of operating, we tested the SX230 on a day which wasn’t perfect for speed runs, but did allow us to gather accurate data. The twin 160-hp Yamaha engines put us on plane in 2.5 seconds and we reached 30 mph in 4.8 seconds. We reached a top speed of 50.4 mph and we found our optimal cruising speed to be 28.4 mph at 7000 rpm. At this rate, the SX230 uses 7.6 gallons of gas per hour, which works out to a range of 168 miles as provided by her 50 gallon fuel capacity. Everything about the boat has a good, solid feel of quality. The ability to produce boats of this size with robotics, much like automobiles, eliminates the human error factor. The results seem to make a difference in the end product.One of the yardsticks I use when evaluating any boat is answering the question, “Would I buy this boat myself, if I was in the market for something this size?” The answer to that question is absolutely “yes.” Do yourself a favor. Take a good look at the SX230 from Yamaha.
Test Result Highlights
