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Author Topic:   13' Super Sport with 30 E-TEC
macfam posted 07-26-2009 10:42 AM ET (US)   Profile for macfam   Send Email to macfam  
Just picked up the new 30 E-TEC.
First impressions:
Starts with a turn of the key, no priming, choking, etc.
VERY quiet, with no smoke. Trim and tilt is super quiet too.
Started from the beginning with synthetic XD 100 oil.

Campared to the 2-smoke 40 Johnson, as one might expect the acceleration is not as dramatic, but still good. Top speed has not been checked with GPS yet, but I suspect is is only slightly less, if at all.

The weight of the engine is just right for the 13'. This may be the perfact match for this boat.

More info later.

macfam posted 08-01-2009 10:15 PM ET (US)     Profile for macfam  Send Email to macfam     
With about 2.5 hours on the new 30 E-TEC, it ran at 5800 rpm and about 28-29 mph (GPS)with a 12" pitch and
StingRay Jr. hydrofoil. Not bad.

That's a few mph less than the 2000 Johnson 40 hp 2-smoke.

But this engine is so far superior in not even comparable.

With the fuel DFI and computer, this engine will stay at any rpm you set it, and just stay there. The old carbed 40 was never happy loafing, and it would get on plane and go like hell or fall off of plane, but would NEVER stay at a slow plane in rough water. So you would get bounced around.
What I realy like about the E-TEC is that with even just one person it will plane at around 15 mph (GPS)and stay there, which is pretty good in a chop.

This is a nice match to the 13'.

R T M posted 08-02-2009 06:33 AM ET (US)     Profile for R T M    
I am running an '08 25 Mercury/Tohatsu FI 4 stroke on my 13 footer since last September, it now has about 14 hours on the clock.(I don`t get out much). At first I was disappointed with the acceleration and the slow get on plane time with 1 or 2 people on board. My top speed is the same as yours, 28-29mph gps at 5800rpm. I`m running an 11" pitch aluminum prop. I recently installed a Sting Ray Jr. hydrofoil as you did, and the results were dramatic. It will jump up on plane and hold a steady plane at 15 mph, and the top speed is the same. I think the results you are seeing has alot to do with the hydrofoil you are using.
My Merc is 157lbs, and the boat sits normal in the water.I was running a 1958 Evinrude Lark 35 on this boat for a short while and the performance was alot better, and top speed was 30mph gps, but the 4 stroke is alot more civilized. It starts with the touch of the key, and is very quiet.
I believe all of these modern small outboards need the help of a hydrofoil, and the Sting Ray Jr. is a good one.
To tell you the truth, I figured the performance of the E-Tec 30 would be better than mine with the 4 stroke Merc/Tohatsu 25. A couple of weeks ago I posted a video showing the testing of a 35 E-Tec on GTS tunnel hull race boat, and the results including acceleration and top speed (almost 50mph) were almost the same as the current 35hp 2 stroke Evinrude 35.1 cu. in motor normally used on this raceboat, which was surprising to me.

rich/Binkie

Peter posted 08-02-2009 08:23 AM ET (US)     Profile for Peter  Send Email to Peter     
When the 32 cubic inch 2-cylinder cross flow 35 (what Rich is comparing the E-TEC 30 to) came out in 1976, the gear ratio was 1.93:1 and the standard issue propeller that came with it was 10 1/2D x 11P. Based on my experience, this propeller didn't have enough pitch for my lightly loaded 13 foot Whaler. The 10 x 13 propeller produced better top speed on my 13 foot Whaler.

At some point during the 1980s, the gear ratio for the 32 cubic inch 30 HP motor (formerly the 35 HP model) was changed to 2.15:1 and the equivalent pitch of the standard issue 11 inch pitch propeller would be 12 1/4 inches. The standard issue propeller became the 10 x 13.

Because the E-TEC 30 uses the same 2.15:1 gear ratio, I think that for maximum top speed purposes, 12 inches of pitch is not enough as it would be the equivalent of using a propeller shorter than the 10 1/2 x 11 with the old 1.93:1 ratio.

Have you tried a propeller with more pitch, such as a 10 x 13? I think you can given that you are at 5800 RPM with the 12 inch pitch.

macfam posted 08-02-2009 09:14 AM ET (US)     Profile for macfam  Send Email to macfam     
With such little time on this engine, it is still injecting double oil, so I wouldn't be surprised if in another week or two I can get 6000 rpm’s with that 12".
The Sting Ray Jr. was on my 40 Johnson, and I was surprised to see that the dealer installed it back on the new E-TEC. I never even asked them to......I guess it doesn't affect the warrantee! LOL

I'm planning on picking up a 13" as a spare. That should let the rpm's drop and still be dialed in. The 13" may prove to be the right prop, we'll see.

However, it's not uncommon to have 3-4 adults onboard heading off to the beach or zipping around Waquoit Bay.
The 12" in that case may give me a bit more versatility.

Rich, you are so right about the civilized nature of the new technologies.
There is a retired doctor next to me, and he has a 40 Johnson (2002-3 I think)on his 13' Super Sport.
Last evening he was cranking that starter like he was blending mudslides.....he tried everything...the battery was giving in......he finally gave up. That 2-smoker never started.

Peter posted 08-02-2009 10:08 AM ET (US)     Profile for Peter  Send Email to Peter     
If that is the typical loading, the 12 inch will remain a good choice.

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