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Old 25-06-2019, 09:05 PM   #1
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Country: England
Location: Barrow-in-Furness
Occupation: ROV Pilot
Interests: Power boating, fishing, Water skiing
Boat name: About Time
Boat make: Phantom 18
Engines: Merc 2.5 200 Evininrude 150 XP
Cruising area: Walney Island coast / Morecambe Bay

Join Date: Sep 2014
Location: Barrow-in-Furness
Posts: 12
Engine Set up Height

Hello,

I've recently bought a Ring 16 with 90 Yamaha, the package came with a standard 17p Aluminium propeller which pushes the boat at 46mph and revs just over 6k. I have tried a 20p laser which gave the same speed but rpm was reduced to 5200, also a 18p vengeance which produced 47mph at 5800rpm.
The engine is sitting on the transom on the lowest hole ( as shown in picture) I am considering lifting the motor 2 or 3 holes to see if this makes much difference when running the bigger pitch propellers, if anyone reading this has any suggestions on running height or propeller recommendations It would be much appreciated.

Thanks for reading and I will look forward to hearing from you.
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Old 26-06-2019, 10:55 AM   #2
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Country: uk
Location: salcombe
Occupation: semi retired
Interests: racing(middle east class 3 6l)
Boat name: still no worries
Boat make: phantom18
Engines: 2.5 efi
Cruising area: salcombe

Join Date: Dec 2007
Location: salcombe
Posts: 497
Hi
If you are just looking for speed and donít want to ski, you could go up as high as the bolt holes would allow (your engine looks very low) then try a lazer 22 but get it thinned, you should be able to get 55ish
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Old 28-06-2019, 09:57 AM   #3
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KurtP16's Avatar
 
Country: England
Location: Barrow-in-Furness
Occupation: ROV Pilot
Interests: Power boating, fishing, Water skiing
Boat name: About Time
Boat make: Phantom 18
Engines: Merc 2.5 200 Evininrude 150 XP
Cruising area: Walney Island coast / Morecambe Bay

Join Date: Sep 2014
Location: Barrow-in-Furness
Posts: 12
Quote:
Originally Posted by still no worries View Post
Hi
If you are just looking for speed and donít want to ski, you could go up as high as the bolt holes would allow (your engine looks very low) then try a lazer 22 but get it thinned, you should be able to get 55ish
Thanks for the reply still no worries
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engine height, ring 16, set up, yamaha 90

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