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Old 09 October 2009, 05:40   #11
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verado 350 sci

I have heard that the verado give a lot of trouble but I wonder how much of that is the pilot!
I have a7.5m rib witha 250 suzuki on a 10 inch set back jack plate top speed 52 kts light but 44/46 kts 5300/5600 rev's she will go forever but looking to move up to a 8.5 with single 300/350 on jack plate(bob's machine shop rated for 350hp) would like to hit the 60 kts mark but not sure about the verado need some convincing and would love to see a fuel flow chart like this one

Proline 24 Super Sport Suzuki DF300 V6 Outboard , Length 7.44 metres HP 300 HP , Beam 2.6 metres Displacement 4.0 litres Weight 1542.21 kilograms Operating Range 5700 - 6300 RPM , Maximum HP 300 HP Weight 274 kilograms , Fuel Capacity 530 litres Lubrication Wet Sump , Transom Height 30" Fuel Delivery Multipoint EFI , Steering Hydraulic .

PERFORMANCE DATA

RPM MPH KMH KNOTS LPH US GPH IMP GPH N.MPG RANGE

IDLE 2.3 3.70 2.00 1.32 0.35 0.29 6.86 719.23
1000 4.9 7.88 4.26 2.27 0.60 0.50 8.52 893.83
1500 6.8 10.94 5.91 5.49 1.45 1.21 4.89 513.27
2000 8.3 13.35 7.21 8.52 2.25 1.87 3.85 403.74
2500 9.7 15.61 8.43 14.95 3.95 3.29 2.56 268.77
3000 16.1 25.90 13.99 20.06 5.30 4.41 3.17 332.47
3500 23.5 37.81 20.42 25.36 6.70 5.58 3.66 383.89
4000 31.3 50.36 27.19 29.72 7.85 6.54 4.16 436.40
4500 35.9 57.76 31.19 42.78 11.3 9.41 3.31 347.72
5000 40.3 64.84 35.01 55.27 14.60 12.16 2.88 302.11
5500 43.9 70.64 38.14 70.98 18.75 15.61 2.44 256.25
6000 48.4 77.88 42.05 85.93 22.70 18.90 2.22 233.36
6250 49.7 79.97 43.18 91.04 24.05 20.03 2.16 226.18


regards phillip
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Old 09 October 2009, 07:58   #12
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Those figures are better than a Verado - and my 2 stroke. Flat out 91lph for 300hp isn't bad and look at those cruising figures.

My 225 2 stroke uses 90lph for 75hp less. The Varado 350 works out the same lph per hp.

I agree the Suzuki 4 strokes are more crusing engines though.

If I was buying a 300hp it would be either the Mercury 300xs or an Etec 300 - then the Suzuki with the Verado 300 only 4th in my list. Right at the bottom would be the 300hp V8 Yamaha - it's bad enough weight at 350 - they went the wrong way in hp!!!

The Verado 350 is still the most powerful outboard out there which is why I am hoping to get one but if only someone would bring out another V8 2 stroke.............
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Old 09 October 2009, 08:06   #13
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single 300/350 on jack plate(bob's machine shop rated for 350hp)


regards phillip
I would choose a Stainless Marine jack plate over a Bob's one - the Detwiler is a fantastic looking item, but don't have any experience of that one.
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Old 09 October 2009, 08:24   #14
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My 300 verado was 104 ltr/hour flat out.
I dont get the concern over a few ltr/hour. The setup is going to cost you a fair bit and to quibble over petrol......I am sure all the racers out there arn't overally cocerned with fuel figures,just performance. Codders you need to get out from behind your desk and go test some engines..
Verado all the way...

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Old 09 October 2009, 08:33   #15
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Ahh but I also want to go on long distance cruises - my boat carries 500lt of petrol - I can currently go about 300 - 350 miles.
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Old 09 October 2009, 08:36   #16
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More interesting info

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Old 09 October 2009, 17:35   #17
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I agree with codprawn in that these big outboards arent really a huge leap forward in fuel economy savings over the last of the EFI 2 strokes. I just wish someone would come up with a Turbo Diesel outboard using a modern all alluminium high tech car based engine. (Most car manufacturers are squeezing more power out of their diesels than similar sized petrol units!) Take a look at the Volvo Penta website for figures, A Volvo-Penta D12 makes 715hp burning the same 140litres an hour as that 350 Verado.! and if you take their closest hp engine to the Verado 350, probably the D6-330hp, it only uses 70 litres an hour flat out! Thats half!!!

Its a no brainer, TDCI outboards would give us instant fuel consumption savings of 30-50%.

I'm sure some of the big Outboard manufacterers are already working at it behind closed doors. Roll on
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Old 09 October 2009, 23:29   #18
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Its a no brainer, TDCI outboards would give us instant fuel consumption savings of 30-50%.

I'm sure some of the big Outboard manufacterers are already working at it behind closed doors. Roll on
Size and weight could be the issues. These modern big OBs are pretty compct units for what they put-out.
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Old 10 October 2009, 07:38   #19
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Size and weight could be the issues. These modern big OBs are pretty compct units for what they put-out.
Not as compact as the old fashioned outboards.

The Evinrude V8 2 stroke was 400hp for only 225kg!!!

I often see older 2 strokes that look 1/2 the size of a similar 4 stroke.

I agree diesels are still too heavy to hang off the back but I wonder about some of the latest car engines - things like the 3L V6 jag engines and some of the 1.9 tdis that are putting out circa 200hp.

The Jag engine is 1/2 the weight of the D6 Volvo and will produce similar outputs with all that lovely water around to cool it.
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Old 10 October 2009, 08:34   #20
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Cod, the evinrude was impressive...when it ran right! I thought they were only 300hp off the shelf? Still holds the world speed record for outboard power which must mean its gutsy. I can't see a modern car based diesel weighing wildly more than some of these verado, yam v8s etc? In fact when you think of it, yamaha needs 5.4 litre V8 to make 350hp, suzuki needs a 4.0 litre to make 300hp, and like codprawn said, the new Ford/Jaguar/Landrover diesel makes 300 h.p. from a 3.0 litre v6, and a lot of the 1.9 car based engines are putting out 200hp now. All the 150 four strokes are 2.6 lite + in cc's. So perhaps they could be close to the same weight with the reduction in cc's that modern diesels seem to have?
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