38'+ straight bottom Ssm setups?
 

Trying find some examples to gauge my setup against and narrow down prop selection for a starting point.
If you have any experience list the boat, weight, power, drive ratio, prop diameter and pitch, x dimension
I'll start
40' hawk 10,000 lbs
600-620 hp @6000 rpm
Ssm 3's 1.58 shaft 3" below the bottom
Props ? Tbd

I have 2 experiences
1. 43 Scarab , 13,500 lbs
725 hp @ 5500 rpm
Transom notch , SSM 3's 2.5 " below bottom
25 pitch 4 blades
planed easy top speed 72 mph.

2. 38 Cigarette flat deck 11,000 lbs
same motors but extremely tired
SSM 3's set 6 inches below bottom
same props same speed give or take

RG.

1988 Kevlar top gun. 650hp ssm3 17.5x 26 3 blade 5200rpm

1993 glass top gun. 625hp ssm5's on boxes 16.5x26 4 blade 5200rpm

1992 carbon fiber top gun 625hp. Ssm3 17x26 3 blade 5200 rpm

1987 Kevlar top gun no notch 750hp ssm3 17.5x26 4 blade 5300 rpm

I think if you wanna turn 6k your gonna need some little guys

What were your drive ratios? I have that in my favor slightly. But I'm thinking I might need 23's

1.50 if i was to guess. not % sure i know they arent in the 1.3 area. i can find out sunday when i got to the shop

If you get a chance let me know. My spares are 1.48

@Lil Red, that was a beautiful boat when you got it.Was there a particular reason to switch to #3s. that boat has some nice lines.

I bought it without drives, and 1 season with bravos (xrs are a waste of time and imcos out of my budget) it was very clear they had no business being on the back of a 10,000 lb boat with 525's. I had plans to upgrade power and I own the 3's for pretty much nothing from parting out another boat.

Last season Icdedppls 38 was getting 5200RPM/80mph on flat water. I think at the end of the season with a light load, cool air, and some chop, he saw 5500RPM, and 86mph. SSM IV's on boxes. Propshaft 1.5'' below right now i believe. 17.5x27p 4 blades. He had 17.5x28 5 blades, that planed worse than the 4 blades, and less top speed. 1.58 drives

What kind of HP is that pushing?