Any easy mods for the challenger 230 Wake with twin 4-TEC rotax supercharged engines?

[230WakeOwnerDallas]

This boat is supposed to go 50 MPH plus with the 430 HP option (215 HP for each power plant). I barely hit 40 MPH even with a light load, half tank of gas, and smooth water. It's a new 2008 and I hear great things about these engines.

Are there any quick / easy / inexpensive modifications that I can make (preferably on my own) that will increase speed / horsepower?

I only have the basic tools and a basic understanding of engines but I'm a quick learner.

Any chance there's something wrong with these engines?

Thanks,

-Matt

I actually hit 40 MPH fairly easily even when loaded down to the max...but I can't get over 40-41 even with 1 passanger (light load).

 

[Squidoo]

There is something wrong with your boat.

 

[chriscorney]

I'm not sure. I have the same boat and it is not broken in yet. I can't even find the speedometer. Where is that located? It says 0.0 on the perfectpass thing

 

[jster91]

Something is wrong for sure. I have a 2004 Utopia 205 with the 240hp merc. I've had the spedo up to 58. But I'm sure the spedo isn't that accurate. But I'm certain it's probably going around 50.

 

[PhongRacing]

I have the same boat, my perfect pass speedo is off 5-7mph compared to my garmin gps at high speeds. unloaded boat 1/4 tank 2 people, tower removed hit 63mph on glass water.

 

[MacDad22]

Try using a handheld GPS to get a more accurate reading on mph.. My speedometer is off by 10mph. My 230 SE ( 430hp ) w/ tower does 58mph according to GPS.

Chris

 

[230WakeOwnerDallas]

you are correct

Try using a handheld GPS to get a more accurate reading on mph.. My speedometer is off by 10mph. My 230 SE ( 430hp ) w/ tower does 58mph according to GPS.

Chris

Hey Chris thanks for the reply. I actually go the boat back yesterday and they the speedometer read 41-46 and the GPS read 51-56 so it's looking like the speedometer is wrong.

My question now is - Why is everyone okay with this? is there not a way to re-calibrate the speedo?

it's a common knowledge on this forum that the speedometers are inaccurate so what's the deal here? I guess nobody has notified Seadoo of the issue? or is this just another one of those "that's how it is with a jet boat" problems??
:rant:

 

[MacDad22]

That is an excellent question, my understanding is that most boats do not have an accurate mph reading..

How is wakeboard tower doing now?

Chris

 

[SilverSurfer]

Most boat speedos are off to some degree or another. Using paddle wheels and all.

I once had a mastercraft that you could change the speedo whilst moving. kinda defeated the purpose I thought