different prop

[Johnny5vikk]

Hey all
I know this has probably been done a million times but im just after a quick point in the right direction
I have a suzuki 30 2022 with standard prop and im getting 26 knots at just under 6000 revs with quick hole shot. Is it worth me changing prop to get better top end and if so what would the change be?
Thanks in advance for any advice.

[beerbelly]

if your getting close to 6000 rpm wide open its as good as its going to get

[Johnny5vikk]

Thanks for that
If I went up in prop size would I not get the same Top speed at lower revs at the cost of a little slower hole shot?

[beamishken]

Originally Posted by Johnny5vikk

Thanks for that
If I went up in prop size would I not get the same Top speed at lower revs at the cost of a little slower hole shot?

Just because an engine rpm is lower doesn't necessarily mean its more healthy for the engine. The correct way to set up an outboard is to ensure that the engine can make as close as practical to maximum rated rpm at full throttle lightly loaded. Which is roughly where you are. Increasing pitch may reduce rpm but it also means the engine is heavier loaded & if you go too far you risk potential damage to valves & pistons as the combustion temperature will rise. You may also find fuel consumption increases due to needing an increased throttle setting to get the engine to do the same work. An engine reving free with a lighter load will be more healthy than one doing less rpm but being boged down by a bigger prop. A bit like pulling up a hill in 4th gear in your car when you realy should be in 3rd. Trouble is with boat engines theres no top to the hill, its constant load, never gets a rest going down the other side.
If you overprop there will likely come a time when the wind & tide are against you & you need to work the engine harder, thats when the damage is likely to occur.

[Pikey Dave]

Hole shot is more important than top speed. You will use “hole shot” I.e throttle response, constantly. How often are conditions suitable for going flat out for any length of time? As already said, your setup sounds bang on the money. If you want to go faster, buy a bigger engine.