More prop selection questions
#1
Registered
Thread Starter
Join Date: Apr 2010
Location: Lake Travis
Posts: 724
Likes: 0
Received 0 Likes
on
0 Posts
More prop selection questions
If you keep the pitch the same but decrease the number of blades what outcome can you expect?
Easier to turn the prop, so you should plane faster and be able to turn more RPM? That should translate into a little more top end, right? Or am I missing something?
Easier to turn the prop, so you should plane faster and be able to turn more RPM? That should translate into a little more top end, right? Or am I missing something?
#4
Registered
Thread Starter
Join Date: Apr 2010
Location: Lake Travis
Posts: 724
Likes: 0
Received 0 Likes
on
0 Posts
I don't know propshaft depth, it's a factory 24 Outlaw evidently the X dimension on them is pretty low. No steps. Boat weighs about 4000 lbs. Stock 330 hp 454.
Last edited by Crossett; 04-09-2011 at 02:56 PM.
#5
Registered
I'm not able to spin my engine as high as I should be (4200 rpm ish). I assume that it's because the prop is too much for the power that it makes. My prop is a 23P 4 blade. I found a used 23P 3 blade for $100. Would it be worth it to buy it and swap them out? I'm looking for a little more top end.
I don't know propshaft depth, it's a factory 24 Outlaw evidently the X dimension on them is pretty low. No steps. Boat weighs about 4000 lbs. Stock 330 hp 454.
I don't know propshaft depth, it's a factory 24 Outlaw evidently the X dimension on them is pretty low. No steps. Boat weighs about 4000 lbs. Stock 330 hp 454.
mirage may be the way to go
#7
Registered
Join Date: Apr 2009
Location: Denmark and hopefully some place nice
Posts: 1,852
Likes: 0
Received 1 Like
on
1 Post
In most cases, a 4 blade will plane off faster than a 3 blade. What engine are you running? We need to know the operating range of your engine. What is the 3 blade you are looking at - make/model? The same goes for your 4 blade. From 4 to 3 blades will give you between 150-200 rpm's. Maybe more, if you also decrease dia. I would try a 21 Mirage+.