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Old 08 September 2015, 10:23   #1
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Avon SR5.4 : 90hp performance?

What kind of performance is everyone getting out of the Searider 5.4 w/ 90hp 2-stroke?

What prop, load, max speed, and cruise speed?

Approximates are okay...there's one for sale locally and I'm trying to convince myself it is what I want for the time being or not. The price is right.
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Old 08 September 2015, 10:38   #2
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Shoot, wrong forum...can an admin move this to RIBs?
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Old 08 September 2015, 11:51   #3
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About 40 knots.

We had a 5.4 with a 90hp 2 stroke mariner with a 20" laser II propeller. Got 39.7knots IIRC. This was with the transom slightly too short - had we kept the boat longer I think there would have been more to come by raising the engine a little.
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Old 08 September 2015, 11:52   #4
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Quote:
Originally Posted by Searider View Post
About 40 knots.

We had a 5.4 with a 90hp 2 stroke mariner with a 20" laser II propeller. Got 39.7knots IIRC. This was with the transom slightly too short - had we kept the boat longer I think there would have been more to come by raising the engine a little.
That's pretty respectable.

Weight wise, was that solo operator + 45L of fuel + anchor setup?
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Old 08 September 2015, 12:48   #5
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Mine, two plus weekend gear or two plus surf gear and 18 gallons of fuel, Yamaha k-series 13.25 x 17 tops out at 43 mph.
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Old 08 September 2015, 14:25   #6
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That's pretty respectable.

Weight wise, was that solo operator + 45L of fuel + anchor setup?
Would have been 2 up
2 man jockey console.
Anything up to 100 litres of fuel
Small anchor and chain
Single battery
Light A frame.

It was an early leisure version that had the seats taken out. So, quite a light boat - I "think" the military boats may have been heavier.

All up it was less than 750kg including the trailer.
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Old 08 September 2015, 14:51   #7
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I have the military version. Pending on propeller, WOT is everything between 37,5 -41,5 knots.
That driving single, but always with all normal gear(anchor+ chain, tools, plenty of ropes, fire extinguisher and typically well fueled. Out of memory, think with the yam K series Ali prop 19 pitch, was abt 39,5 knots.

My cruising speed is, weather permitting, typically 28 +- knots, seams to move very easy at that speed. Fuel per distance is not much related to speed, don't notice any measurable difference on 22 vs 28 knots.
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