wellcraft v20 with 90 2-stroke

[Wolf]

All those number seem low, my '78 V20 cuddy with a '87 150 Suzuki will run
44 mph and cruises at 28 mph at 3500rpm.. Does that sound right?

[reelapeelin]

Originally Posted by Wolf

All those number seem low, my '78 V20 cuddy with a '87 150 Suzuki will run
44 mph and cruises at 28 mph at 3500rpm.. Does that sound right?

If those are your numbers they're great...you must be propped high...I've had two different 150s (1 2 stroke and 1 4 stroke) and I haven't seen 44 or 28 mph @ 3500...

[Steplift 72']

Originally Posted by reelapeelin

If those are your numbers they're great...you must be propped high...I've had two different 150s (1 2 stroke and 1 4 stroke) and I haven't seen 44 or 28 mph @ 3500...

Wish someone with a connection to Mercury could get their hands on the old "Boathouse Bulletins" from Lake X where they tested boat & motor combinations. The 1983 Mercury info for the Wellcraft V20 said 46 mph with their 150 V6 and a 19P prop, 20 gallons fuel, no gear and 2 persons onboard. I tried a 19P prop and went to 17P because real world is 72 gallons of fuel, ice chests and tackle. Mine did about 42 mph real world with a good load and 150 hp.

[bgreene]

Originally Posted by Steplift 72'

Wish someone with a connection to Mercury could get their hands on the old "Boathouse Bulletins" from Lake X where they tested boat & motor combinations. The 1983 Mercury info for the Wellcraft V20 said 46 mph with their 150 V6 and a 19P prop, 20 gallons fuel, no gear and 2 persons onboard. I tried a 19P prop and went to 17P because real world is 72 gallons of fuel, ice chests and tackle. Mine did about 42 mph real world with a good load and 150 hp.

That's good speed - I'm getting just about 40.0 mph with 150 Johnson and 1/2 tank - 30 gallons on my V21. That was on the ocean, not flat so might get a bit more. With 150hp generally 38-42 mph seems the WOT speed.