I was wondering what the KW on a 200 HO is?
Can you help me?
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I was wondering what the KW on a 200 HO is?
Can you help me?
Kirt, Welcome to the BBC; You will enjoy it here!! Someone will be along shortly to help with the question; We need a serial # and a model # though................Roger http://www.bassboatcentral.com/smileys/wink.gif
This is a area I dont understand. I always believed that the kw was the hp the engine puts out. THe engines list 2 numbers a power kw # and a mass kg #. On a standard 200 the kw is 149.1 and the kg is 200.. On the 200HO the kw is 149.1 and the kg # is 238.. Perhapes someone here will know what the kw and kg numbers mean.
I was following another post on another site about the KW thing in how it is the actuall HP.
For example the XS Merc and the HO ETEC 225 have a KW rating of 186 times 1.341(hp/KW) equels 249 hp.
now take a 200 OPTI = 147 kw=197 hp,
I was wondering if the same thing holds true for the ETEC 200 HO.
The standard ETEC 200 is 149kw=199hp
Seahorse is the instagater of my wondering http://www.bassboatcentral.com/smileys/doh.gif
kg = kilograms
Kilograms are a unit of weight. It has nothing to do with the power of the engine.
In the metric system, most weights are given in kilograms.
Most Americans still think of weight in units of the avoirdupois system,
so they are more familiar with pounds and ounces.
The relationship between avoirdupois weight and metric weight is
2.2 pounds = 1 kilogram
I learned this, finally, a few years ago from my own body weight.
After dropping about 45-pounds (due to some health problems)
I was slowly gaining weight back to my usual level. I was frequently
seeing my physician and getting weighed. My doctor's balance beam
scale had a dual calibration, one side in pounds and one in kilograms.
I used to get on the scale, weight myself in pounds, and then flip
the scale over to see what I weighed in kilograms. Finally, I got
back to my normal weight, 220-lbs. I flipped the scale over and
discovered I weighed 100-kilograms. The ratio of pounds to kilograms
has been clear to me ever since that day.
The relationship between power in horsepower and watts is also
fairly easy to remember:
1-HP = 750 watts or 0.75-kilowatts (approximately)
So 200-HP = 150-kW
My 225 ETEC HO has a 186.4 KW stamping which if you use the correct 746 Watts/HP conversion factor that equals 249.9 HP. The 186.4KW is identical to the specifications in the manual and web site for the 250 standard ETEC. Is this typical for all 225 HO?
These kw figures, are that what the motors are rated at or are they what they are seeing on a Dyno? The reason I ask is because if it's just a rating, it doesn't mean any more then what's stamped on the cowl in hp numbers. Basically, it doesn't tell you what the motor on a dyno is really putting out.
- Dae
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dae »</TD></TR><TR><TD CLASS="quote">These kw figures, are that what the motors are rated at or are they what they are seeing on a Dyno?
- Dae</TD></TR></TABLE>
Dae,
The advertising KW comes out as the same as the advertised HP.
In the EPA emission testing, they usually list the Kw that the certified motor produced under ICOMIA standards, and that can be converted to the actual hp that the motor produces. Multiply the Kw by 1.341 to get hp. You can dig thru the EPA website for the emissions on every engine or some motors will have the actual Kw on the EPA sticker.
Re converting kW and HP, ".75" is a lot easier to remember than ".7457" and the difference is less than half of one percent. The actual measurements of horsepower are probably not taken with that much accuracy.
Re the EPA, is there any explicit indication that the power values noted in the EPA test results are actual measured values? This seems like somewhat of a cloudy area.