From the previous post, I had added a few things 4 Blade prop, shark hide and new ski tow bar.
The new Spitfire 4 blade prop I was running was a great improvement over the 3 blade Black Max. The speed between the two props didn't change much if at all, still 32 mph, but the RPM's were a little higher at 6200 vrs 6000 with 3 blade. The benefit was greatly improved holding at high trim and turns and rough water with no blow out. I was able to trim to 50% on gauge and generate a rooster tail behind boat pretty awesome if you ask me.
Was hoping to tweek further and get the rpms back down to 6K, but Mercury doesn't make a 15 pitch Spitfire prop for the 90 and 115ct motors, the next step up I think is 16 or 17 pitch and that's to high for my boat. I think once the toons get dirty and/or some extra weight on board the wot rpms will be with in range on 55-6000.
The new turbo swing tow bar works like it should, and the water really beads up on the toons after shark hide was applied.
Specs,
On board was 2 Adults,+ 1 beautiful child, full fuel 22 gals.
22ft express tube, 115 Mercury ct with clean toons
original prop 3 blade black max 15 by 15P, 32 mph 6000 rpm
new prop 4 blade Spitfire 14 by 14P 31-32 mph 6200 rpm
The new Spitfire 4 blade prop I was running was a great improvement over the 3 blade Black Max. The speed between the two props didn't change much if at all, still 32 mph, but the RPM's were a little higher at 6200 vrs 6000 with 3 blade. The benefit was greatly improved holding at high trim and turns and rough water with no blow out. I was able to trim to 50% on gauge and generate a rooster tail behind boat pretty awesome if you ask me.
Was hoping to tweek further and get the rpms back down to 6K, but Mercury doesn't make a 15 pitch Spitfire prop for the 90 and 115ct motors, the next step up I think is 16 or 17 pitch and that's to high for my boat. I think once the toons get dirty and/or some extra weight on board the wot rpms will be with in range on 55-6000.
The new turbo swing tow bar works like it should, and the water really beads up on the toons after shark hide was applied.
Specs,
On board was 2 Adults,+ 1 beautiful child, full fuel 22 gals.
22ft express tube, 115 Mercury ct with clean toons
original prop 3 blade black max 15 by 15P, 32 mph 6000 rpm
new prop 4 blade Spitfire 14 by 14P 31-32 mph 6200 rpm