etec verses old tech

[tkoons]

is an etec say 50 really that much faster than a say 01 50?

 

[Silvertip]

Re: etec verses old tech

RPMs are RPM's so theoretically putting either engine on the same boat should run the same speed at the same RPM (provided the lower unit gear ratios are the same which they aren't). Because of that a 50 HP e-tec may be able to twist a prop more efficiently than the 01 50 so it may be faster. The 01 50 HP has a 2.4:1 gearset in the lower unit while the e-tec 50 has a 2.67:1 gearset. The standard prop looks like a canoe paddle in comparison to the 01 so it will very likely kill the 01 on hole shot as well as top end. But then I don't own one so I can't say for sure. I did have a 95 Evinrude 50 though so I am familiar with that motor.

 

[tkoons]

Re: etec verses old tech

my boat has a sixty horse plate on it is it illegal to exceed that? P.S. do you see where this conversation is going!

 

[JasonJ]

Re: etec verses old tech

Horsepower is horsepower, torque is torque. The differences will be where in the rpm band your peak power lies, the prop, the lower unit gear ratios, and the weight of the motor. The other differences are how fuel efficient the two motors are, how quiet are they, and will you ever recoup the higher cost of initial purchase in fuel savings by going etec. The only advantage in going etec is if you want a new motor and like spending money, or have the money to spend, want the warranty, or are environmentally conscious.

Are you saying you want put twin 50s on your 'toon? You'd be better off with a single 100 if that is what you are hinting at. Otherwise I have no idea what you are hinting at...

 

[Silvertip]

Re: etec verses old tech

If you have a 60HP plate you can certainly install an engine larger than that. But should you have an accident, someone else will own all your stuff if they find out your boat is overpowered. It's a risk only you can weigh. Your insurance company may also have a dim view as well and in fact may not cover you at all. That all depends on what you told the agent, and what is an is not indicated on the policy. If you don't carry insurance, well -- I consider that financial suicide.

 

[Solittle]

Re: etec verses old tech

I can almost hear the lawayers perking up.

 

[DJ]

Re: etec verses old tech

There is a 60 etec.

 

[JB]

Re: etec verses old tech

Hmmmmm. Seems to me that the operational differences would be:

The ETEC would be much more fuel efficient, cleaner, quieter, much more expensive and heavier.

If both were ideally rigged and propped the ETEC would probably be a bit slower because of the added weight on the transom, but the difference would be trivial.

One of the problems with the new DFI 2 strokes and EFI 4 strokes on older boats is that they weigh so much more than the carbed 2 strokes the manufacturer calculated as max hp for the boat.

For example, DWJ and I both have 70s-80s Boston Whaler 15s that are rated for 70hp. BW anticipated the use of OMC or Yamaha 70s that weigh around 250lb.

All currently available "modern" 70s weigh over 300lb. The wonderful Suzuki/Johnson DF70 EFI 4 stroke weighs around 356lb. Right power, too many pounds.

So if we want the nimble handling and good trim designed into the boat we have to settle for 50 or 60hp "modern" engines or stick with carbed 2 stroke engines.

 

[Silvertip]

Re: etec verses old tech

JB -- the E-tec 40, 50, and 60, all have advertised weights of 240 pounds.

 

[tkoons]

Re: etec verses old tech

im too lazy to look up the specs what does an old 50 weigh?

 

[JB]

Re: etec verses old tech

About 200 pounds, tkoons.

Yes, Silvertip. As I said, heavier than the carbed OMC 50 but a safe weight for our 15s.