PierBridge
Chief Petty Officer
- Joined
- Sep 3, 2004
- Messages
- 625
E-TEC 75/90hp 320lbs.<br />Mercury OptiMax 75/90hp 375lbs.<br />4-stroke 75/90hp 386lbs. <br />Yamaha 4-stroke 75/90hp 369lbs.<br /><br />Can anyone verify these numbers?
You can verify those figures with the manufacturer directly...<br /><br />E-TEC 75/90hp 320lbs. [True] Evinrude E-Tec 90 HP Spec.'s<br /><br />Mercury OptiMax 75/90hp 375lbs. [True] Mercury 90 HP Optimax Spec.'s<br /><br />Mercury 4-stroke 75/90hp 386lbs. [True] Mercury 4-Stroke 90 HP Spec.'s<br /><br />Yamaha 4-stroke 75/90hp 369lbs. [True] Yamaha 4-stroke Engines Spec.'s<br /><br />-TheChad
The Weight limits on boats are usually figured after the engine is installed... So if the tag on the boat says 6 person, or 750 lbs, that's already assuming the weight of the Largest engine the boat is rated for... So even if you save 66 lbs on the engine, that tag doesn't change.<br /><br />-TheChad
That's only true if you stick with the original motor. But what if you decide to change to a heavier four stroke later? Then you've lost 66lbs capacity, just like DEIFan says.
The belief is real. Look at all the 4 strokes on the market and most are heavier. Lately they have they been getting lighter and closing the weight gap but weight is still an issue with many. Current example: Bluewater boats spec either 200hp 2 strokes or 150hp 4 strokes based on weight...100 more hp with 2 strokes. Old example: Early (actually not that old) 50hp 4 strokes weighed same as an omc 70hp of the same vintage.
Not much difference at 90 HP is fair. You need to look at each size motor before jumping to conclusions like 4 strokes are heavy, or two strokes are lighter. In general, the bigger the motor, the less the weight difference there is between 2 stroke and 4 stroke. Aditionally the relative difference(9/300 = 3%)is generally nominal. Smaller engines the difference is a big deal (50/109 = 45%. Don't believe the marketing hype, check it out for yourself.<br /><br />Etec 40 HP 240 lbs<br />Yamaha 40 Four Stroke 182 lbs<br />Yamaha 40 Two Stroke 189 lbs<br />Marketing spin?: ETEC is a bloated pig<br /><br />Suzuki 25 HP 4 Stroke 209<br />Yamaha 25 2 stroke 109 lbs<br />Honda 25 4 Stroke 159 lbs<br />Marketing sping?: Comes with a built in anchor<br /><br />I see merc took the two stroke classics off the web page now.
You may notice that on some new boats they now have the max HP rating, and a seperate sticker that says - This boat has been designed for an outboard motor up to X lbs. My 2006 Lund Rebel 1450 has one, and I saw one on a 2005 model as well. Not sure when they started doing this, but it makes a lot of sense with motor weights all over the map.<br /><br />I had a 2002 Merc 4S 50 EFI on a 2001 Lund 1650. It did not exceed hp, but it was to much weight in the stern. Did not want to stay on plane at slow speeds, tended to pound the hull on rough conditions, etc. Moving weight forward helped, and smart tabs might have helped too. Bottom line is the boat was meant to have a lighter motor.<br /><br />This is a perfect example of where extra weight can cause a problem. Smaller boat with max HP motor.
I saw one at the boat show last winter for the first time. I am 6 foot tall and the thing is taller than me. Impressive in stature, but I had to think this is a male version of "girls gone wild".
