I need help. I have a Warlock 28 sxt, with a 572 making about 1000 hp, going into a turbo 400. I have tried 3 props and can't get it right. The last prop I tried was a 16.5 28p 3 blade cleaver, went about 74 mph at 4000 rpm. Anthing smaller doesn't want to move the boat.
Is there a better prop I can use with my set up. I'm going for speed. Thanks

Quick Question? who did you get the boat from and is it a #5 drive? I have 2 props That are 28x16.5 hoss 4 blade and a 28x18 4blade clever,that are available.not sure what the 400 does for you plus what gear ratio.

Whats the gear ratio and what RPM are you trying to get ?
Are you looking for TOP or Exelaration or a bit of both ?
INFO ???????????

a bit of both. mostly top speed. I want to stay around 5200 rpms.
The 400 probably makes the gear ratio to be 1 36? or somewhere around there. I think the #3 drive originaly came with a 1 50?

it is a #3. left hand. Boat is originaly form cali

How high or deep is your Xdim.?
something does not match here.

how do I measure that?

It is the hight of the propshaft compared to the bottom of the hull, while drive is level with the hull.
The SXT is a cat ,right ?!

Just give me a call if you like ?
# 941 592 5815

If the gear ratio is 1.35:1, the slip is 9%. That is very good. You need to raise the rpms by decreasing pitch. It is hard to believe you can only turn 28 inches of pitch to 4000 rpm with 1000HP. ??