Twin 4.3 EFi's-A1 in a 1999 Sundancer 290 = 32MPH max?

[MasterGoa]

Hi all!

Searching for boats, I tried out an amazingly clean
1999 Sundancer 290 from Searay. Boat looked 2 years old,
really shows SR build quality. However, there is only one snag
from pulling the trigger: WOT tests yielded 52KPH (32MPH)
at WOT.

The engines were tuned up last fall, the gas in the talk is one year old.
*Note that the engines are at 950 hours*.

It has four blade aluminum props with Alpha 1 Gen II drives.

When at WOT, the engines never got passed 4100 RPM.

The engines started on a dime and run super smooth and even.

Question:
Is the speed reading normal? This was GPS provided.

Where should I look to improve top speed?

How can I know that the engines are starting to
lose compression? Will it leave a white deposit on the oil
cap like on old cars?

In every other way, this is the boat for me, but I cannot
buy it only to have 7K of engine rebuilds soon after...

Thanks for any insight.

 

[Bt Doctur]

Re: Twin 4.3 EFi's-A1 in a 1999 Sundancer 290 = 32MPH max?

really should have 5.7`s in there not a V6

 

[MarkSee]

Re: Twin 4.3 EFi's-A1 in a 1999 Sundancer 290 = 32MPH max?

Seems like with that many hours, you'd want to have a professional mechanical inspection done on the engine/drives that would include a compression and possible leakdown test.

If the boat itself is that clean then good chance the owner(s) may have kept up the maintenance as still turning 4100 and 32 mph in that heavy of a boat may not be all that bad.

Mark

 

[MasterGoa]

Re: Twin 4.3 EFi's-A1 in a 1999 Sundancer 290 = 32MPH max?

Mark, I think I will have to.

BTW, what is your WOT speed on your 270?
Is the 7.4 injected?

 

[MarkSee]

Re: Twin 4.3 EFi's-A1 in a 1999 Sundancer 290 = 32MPH max?

It's the mpi if that's what you mean by injected.

Not really sure about WOT as once I hit about 4100 rpm it is doing around 35 mph and I'm happy with that.
Love that Bravo 3.

Mark