500 hp on a 25' DV

[jhendric]

Guys, I can see the max hp on the 2501 CCs is rated at 500hp. My 1996 is pretty much identical to the new ones. AS I look to repower in the near future I am curious. In the E Tech line of engines, once you make the jump to 200HO the weight is the same all the way up to the 250hp model...so why not put a couple of 250s back there.

Wondering if anyone has 500hp now...my boat goes 52mph on the GPS with the old 200 hp SS2s I have now...not entirly sure 500 is really safe??

 

[DaleH]

In the E Tech line of engines ... why not put a couple of 250s back there.

...not entirly sure 500 is really safe??

Safe? Probably?

Wise? No way! I was considering buying a single E-Tec 25-hp for my old 'big girl' and an owner of an E-Tec powered Parker talked me out of it. The oil cost alone would have been > $800 per season. And that was just for 1 motor.

Now. if performance vs. OB weight was truly my #1 motivator, than I can see the desire and application for a single E-Tec, as many Boston Whaler owners are finding out.

IMHO Parkers aren't speed boats and shouldn't be driven that fast. If you need the speed, you should be spending your $$ on a Regulator, Contender, or other offshore stepped/performance hull. Sorry ...

Or ..wait for the new Bombardier 4-strokes coming out this August!

 

[jhendric]

yeah, I hear you. Truthfully I never have the opportunity to open up the engines I have now! Maybe for a mile or so after I'm back in the intracoastal. Still, makes you think...

 

[DaleH]

Yeah, just think RISING fuel & oil costs - doh :shock: !

 

[dave-j]

Hey Dale, you piqued my curiosity. Why $800 in oil cost for a season? That's about 20 gallons of oil for an average season of 100 hours of usage. You think these guys burn a gallon of oil every five hours? That would be about 50 gallons of fuel at running speed over the same time, for a 50/1 ratio of fuel to oil. Is that right?

Dave

 

[jhendric]

I was curious about the same thing...I just assumed Dale burns 1000 gallons of gas a year....I'm lucky to burn 600...with old 2 strokes...

 

[DaleH]

One year I burned 1300 gals in fuel ... divided by 50 = 26 gallons ... and I was using $12 to $18 per gallon oil, which = $312 or $468 per season.

But XD oil for direct injected OBs is min $40 per gallon and that alone would have been $1040 in oil ...

 

[miky2884]

I use the penzoil marine XD 2 stroke oil for my ox66 17$ at walmart

 

[Megabyte]

Don't the E-Tecs use XD100 oil?
That would be 100:1 right?
100 gals of fuel per 1 gallon of oil?

I think our OX66's are 50:1 and I pay $72.45 per case for Penzoil full synthetic.
Of course... a 'case' these days is 3 gallons. :roll:

 

[DaleH]

Don't the E-Tecs use XD100 oil?
That would be 100:1 right?
100 gals of fuel per 1 gallon of oil?

I think our OX66's are 50:1 and I pay $72.45 per case for Penzoil full synthetic.
Of course... a 'case' these days is 3 gallons. :roll:

There's 2 versions of XD oil ... 50:1 or 100:1 ... it will burn more than 100:1 in use when programmed as such, as it is throttle dependant, but still a savings over the 50:1 oil.

 

[HVF21221]

I have twin Yamaha 250hpdi's on my 2520. Not a DV. The previous owner got a "deal" on a set of new motors sitting in crates for a couple years. That said I would say it is definitely not neccessary as the boat will go 50-53mph. I only occasion let her have it on glass water for 5 minutes or so. Most of my bay cruising is 30 knots on nice days. I plan to add dual fuel economy gauges soon to see the sweet spot. I like duals but EVERYTHING is double the $$$$. Plugs, fuel filters, on , and on.

 

[DaleH]

I get 40mph out of a single 225hp ... and in seas, forget it ...

Dual OBs get the nod for redundancy (less fuel issues :shock: ! ) - that's it. But, 2 are more efficient in mpg too.

 

[jhendric]

Man, if you are only getting 52 mph with 500 you may need to check your props....I can go 50 with 400. True 50 on gps. Again, I rarely have an opportunity to do that except in the ICW coming back in.

 

[HVF21221]

Will you boat plane off with only one motor running?

 

[warthog5]

There's 2 versions of XD oil ... 50:1 or 100:1 ... it will burn more than 100:1 in use when programmed as such, as it is throttle dependant, but still a savings over the 50:1 oil.

A friend of mine Artie Surtherland has been running E-tecs for a while.

2- 200 HO
then
2- 200 small blocks due to weight issues
then switched boats to a 29 SeaVee and repowered with 2-250's.

All were programed for 100-1. He said in reality they averaged 85-1. I think you could pretty much take that to the bank with his experience of different motors.

 

[Megabyte]

That being the case, my OX66 is probably burning something less than 50:1

I never have tried to figure out the oil burn.
I just know that every time I fill up the boat, I also top off the oil tank.

My cost per gallon is higher because I run full synthetic in my motor, but I like the cleaner burn, so it is worth the extra cost to me.

 

[jhendric]

My Parker will plane on one engine.

 

[mjc]

I have a 2510 with twin 200 Yami I could not ask for better performance from this boat. I had the dealer upgrade to 200 from 150. I am so happy! I could not ask for any better performance. I can hit 54 GPS with 3 or 4 guys going fishing but why? In my opinion the hull is not designed for it. Not the sweet spot.