bia horseporwer rating on evinrude.

[npd4432]

When did the BIA begin to rate HP at the prop and not the flywheel on OMC products? I own a 1983 Evinrude 75 HP E75TRLCTE and have an ongoing debate with the local boating officals who disallow my motor on a lake with a 60 HP limit. My argument is that my 1983 model does not equal the HP of a 2006 model, others say HP is HP. Just wanted some opinions.

 

[Dhadley]

Re: bia horseporwer rating on evinrude.

The ratings started to change in the mid 80's. You are correct that that exact same powerhead was rated as a 60 in some years. I'm afraid you're fighting a losing battle. You can attack them with logic and facts but they aren't going to listen. Even if you bring up the NMMA's 10% rule on advertized horsepower.

 

[marinemech1]

Re: bia horseporwer rating on evinrude.

1985 models crank rated<br />1986 modles prop ratew

 

[DHPMARINE]

Re: bia horseporwer rating on evinrude.

I think Merc started prop rating in 1984,and OMC started in 1985.<br />I know you have to represent things to appease them,so suggest a 23 year old motor no longer has 75 HP and is probably closer to 60 HP.<br /><br />This probably won't work,but you might suggest speed limits as well as no wake zones instead of HP.<br /><br />DHP

 

[npd4432]

Re: bia horseporwer rating on evinrude.

These guys are pretty reasonable, definately if I can show them some factual information. The lake already has a "ski zone", a high speed only towing area. The rest of the lake is no wake. What is the 10% rule that was mentioned? The reason I would like to get this boat on the lake is because I own a home about 50 yards from the shoreline and our property owners group has some clout with the local authorities and I could bring these facts to their attention and to the attention of the local magistrate.

 

[Dhadley]

Re: bia horseporwer rating on evinrude.

What are they going by? the stickers on the hood? The model number?

 

[npd4432]

Re: bia horseporwer rating on evinrude.

They are usually going by the decals. But I have seen some fraud decals which they have further investigated.<br />By the way was the crank HP vs. prop HP the reason for the evinrude/johnson 88spl and 48spl?

 

[Cricket Too]

Re: bia horseporwer rating on evinrude.

The 10% rule was when the NMMA allowed the engine manufacturers to advertise HP 10% above actual HP rating for advertising purposes. So if you figure in the 10% rule initially, your at 67.5 HP, then with the fact that a crank rated engine will generally lose about 5% through the lower unit, your at 64HP, which still doesn't get you to the 60 that you want to be at, but you can always try the argument, as DHP said, that a 23 year old engine that produced somewhere around 65HP new, is not putting out 65 anymore, and is more than likely closer to 60HP, actual at the prop today. <br /><br />I'm not saying it will work, but give it a shot. And if doesn't work, your last resort is probably changing the decals. They sell decals for all engines and HP's on e-bay, pretty cheap. I think the reason they use that 60HP rule on some lakes is for the pollution factor, bigger engines more pollution into the lake.

 

[DHPMARINE]

Re: bia horseporwer rating on evinrude.

The 48,88,and even the 112 where originally 'specials' that did not have TrimNTilt, or VRO.Thus a lesser cost.<br /><br />DHP

 

[dajohnson53]

Re: bia horseporwer rating on evinrude.

I just can't imagine why any patrol system trying to enforce a HP law would look at any individual motor and have to consider all the subtle factors we're talking about - year rated, power head vs. prop, loss of power due to age, etc. What a waste of time for those guys. How could they possibly make decisions that wouldn't be challenged, further wasting everyone's time. What might seem to be a "reasonable exception" for you would be seen as totally unfair to someone else who might have similar but slightly different circumstances, or someone who is just looking at the HP decal on your engine without any other info. I just can't imagine it would serve anyone if they started making exceptions based on such arcane nuances. If you really, in your mind, feel your engine is mis-labeled and feel ethical with the deception, buy another label! JMHO, of course - good luck anyway.