Props for Marlin

Papo

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Joined
Mar 23, 2018
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#1
Hi everyone,I repowered my Marlin with 300 Suzuki twins.I had 3x16x18.5 it was slipping a lot to plane it.So a friend gave me to try out 3x16x20 the slipping was a little less but couldn’t top end it cause of the poor conditions.Been thinking to go 4 blades or try eco enertia 3x 16x19 .Im open to all suggestions and help will be very appreciated.
 

Island Pilot

Active Member
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May 2, 2017
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Key Largo, FL
Grady White Model
Marlin
#3
I'd connect with propgods. I suspect ur over pitched.
Hi everyone,I repowered my Marlin with 300 Suzuki twins.I had 3x16x18.5 it was slipping a lot to plane it.So a friend gave me to try out 3x16x20 the slipping was a little less but couldn’t top end it cause of the poor conditions.Been thinking to go 4 blades or try eco enertia 3x 16x19 .Im open to all suggestions and help will be very appreciated.
Did you figure the props out? I am interested in your performance with the duke 300s.
 
Joined
Jul 20, 2018
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Location
Cape May, NJ
Grady White Model
Marlin
#5
we are running the 3/16/18.5's.... ive found that you have to use the tilt trim and start with them all the way down to get the best grip with the holeshot... then trim up depending on conditions once on plane.... our engines are mounted ont he 2nd hole hole pattern from the top....
 
Joined
Jun 9, 2019
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Grady White Model
Sailfish
#6
Thanks for that info. I have engines arriving some time this week and need to order props today.
 
Joined
Dec 1, 2013
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#7
To add to the above we are running twin 300 Suzukis on a Marlin 300. We have Suzuki 3/16/18.5 props pulling 5500RPM at 39 knots. We will be trying 17’s in an effort to pull more RPM.

At the moment there is zero slip either coming on plane or in a high speed turn.
 
Likes: Mindskew
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Dec 1, 2013
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#8
Hi all,

I have some further figures re Marlin 300 with twin Suzuki 300’s.

We have raised our engines one hole and are now pulling 5800-5900 RPM at 40-41 knots. Fuel burn was around 185 litres per hour.

Cruise at 4000rpm was 26-27 knots at 72-73 litres per hour.

We have full side curtains riggers, centre rigger, radar etc. Fuel would have been 75% and 50% water.

Propellors are Suzuki 3/16/18.5

Performance has not been compromised by raising engines. Trim down to get on plane as usual but can go hard over at 4500-5000 rpm and 30 knots with zero slip.