oconnor marine

it shouldnt need tabs. Drive all the way down should go on plane easily with a 21 pitch. What the diameter? Or part number?

NHGuy

For comparison My 223 planed off in around 8 or 10 seconds Sunday with 5 aboard on a 21" prop. My engine is smaller and produces less torque than a 454. But it's lighter and it's a little built so it has horsepower. The 21 is my tallest prop and should not have been on there. Even that felt slow, so 45 seconds is unacceptable. I use full tab and tucked drive to launch. I don't stab the throttle, just roll on the power. I raise my tabs incrementally once the bow rolls over onto plane if the water is flat enough to not need the bow down in the chop.
I found documentation that claims my boat weighs 4000 lbs as built. Fuel tank holds 86 gallons so what's that around 650 lbs, plus gear and people. 5 something on the water, approaching to 6,000 with 5 people of various sizes.

Tony S

tpenfield

Maybe the boat does weigh 6800 lbs. . . but it shouldn't. 1988 boat, might have a bunch of water in the structure and foam. My 1991 242SS weighed in at about 4800 lbs. So the 223 should be under 4K lbs.

When a boat won't plane as it should the 2 primary reasons are weak motor or heavy boat.

distantthunder

Tony S