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Old 03 September 2004, 09:20   #1
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Which one is faster, 135 or 140.....

....Two engines, straight from the factory on the same rib with the same driver in the same conditions - the same everything. Which one gets to the finishing line first.

A. Mariner 135 optimax.

B. Suzuki 140 Ultra Longshaft 4 stroke.

A or B - simple !
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Old 03 September 2004, 09:39   #2
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Originally Posted by MeMe
....Two engines, straight from the factory on the same rib with the same driver in the same conditions - the same everything. Which one gets to the finishing line first.

A. Mariner 135 optimax.

B. Suzuki 140 Ultra Longshaft 4 stroke.

A or B - simple !
Same everything .... means same finishing time
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Old 03 September 2004, 09:44   #3
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On a light boat, I'd put my money on the opti I think.
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Old 03 September 2004, 09:46   #4
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I'd think the Opti too. But not by a significant margin.
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Old 03 September 2004, 14:45   #5
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Thats an odd question!!, only because when i get back to work next week i have to do a comparison betwwen the 140 suzuki, 135 opti and a 115 opti, to trial a replacement engine for one of the MOD boats. So i will let you know very soon for definate.
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Old 03 September 2004, 15:02   #6
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I'd say the Opti, but then I would say that wouldn't I!! The Optimax should destroy the Suzuki on acceleration but the extra 5hp might help the Suzzy to catch up. Depends how long the course is!! There isn't much of a difference performance wise between the 135 and 150 Optis, in fact you'd need a stopwatch to tell the difference. Drove my friends 135 on his Tornado 585 and then drove my 150 on my XS 600. Impossible to tell the difference and leads me to believe that the 135 is actually producing closer to 140. My local Merc dealer also agrees saying that the main reason people buy 150s is for the numbers on the cowling!!
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Old 03 September 2004, 18:19   #7
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I'd love to see the results of this with the 2 engines being fitted on exactly the same hull with same weight etc....

I would guess that the optimax would lead the way from the throttle opening with (marginally ) faster acceleration and perhaps faster top end - the Suzuki feels probably about as pokey as my old 70hp 2-stroke on 5m rib with acceleration I think.

However, what would also be interesting though would be to fill the boats with say 8 people and then see what the difference is.

One thing for sure though is that the Suzuki will be quieter

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Old 03 September 2004, 19:36   #8
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However, what would also be interesting though would be to fill the boats with say 8 people and then see what the difference is.
I suspect the opti being a V6 would cope much better with a load than the suzuki.
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Old 03 September 2004, 22:16   #9
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Isn't the optimax lighter too though?
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Old 04 September 2004, 02:44   #10
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which is lighter?

Not according to their web sites:

Mercury 135 Opti: 195kg (I think that't the longshaft - they usually quote for the lightest)
Suzuki DF 140 UL: 191.0kg
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