Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Classifieds
Media
New media
New comments
Search media
Log in
Register
What's New?
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Navigation
Install the app
Install
More Options
Advertise with us
Contact Us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Hobbies & Interests
Hunting & Fishing
Prop pitch change & 3-blade to 4-blade
Search titles only
By:
Reply to Thread
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="sh00ter" data-source="post: 3565030" data-attributes="member: 24531"><p>I am reading stories on aluminum boats with 40-60hp that they went to the spitfire 4 blade and actually gained speed & RPM...However, I see some opposite reports...Generally, you are supposed to drop a pitch when you go 3-blade to 4-blade. But some of the accounts I've read reported people increasing the pitch by one increment when they went 3-blade to a 4-blade and then they not only got better holeshot, they also gained MPH. I am most concerned about gaining MPH. My boat right now runs about 36mph @6100rpm trimmed out with just me and the stock 3-blade on the 50hp merc. I want to gain speed and any improved holeshot is secondary, but i want to gain speed with a 4-blade. I am already up to the max RPM so I am not looking to increase RPM or lose it. </p><p></p><p>Would a single INCREASE in pitch and going to a 4-blade accomplish more speed? Again, most say go down a pitch but they also lose speed. I went 4-blade and dropped 3 pitch increments on my big boat and it increased RPM and decreased MPH so I have to assume the same for the littler boat which is why I want to go up instead of down as an offset. </p><p></p><p>Here is a guy with a similar boat (not exact same) who went up a pitch when he got a 4-blade and he got better speed as I am hoping.</p><p></p><p>[MEDIA=youtube]8ZnnF7Zs124[/MEDIA]</p><p></p><p>Thanks</p></blockquote><p></p>
[QUOTE="sh00ter, post: 3565030, member: 24531"] I am reading stories on aluminum boats with 40-60hp that they went to the spitfire 4 blade and actually gained speed & RPM...However, I see some opposite reports...Generally, you are supposed to drop a pitch when you go 3-blade to 4-blade. But some of the accounts I've read reported people increasing the pitch by one increment when they went 3-blade to a 4-blade and then they not only got better holeshot, they also gained MPH. I am most concerned about gaining MPH. My boat right now runs about 36mph @6100rpm trimmed out with just me and the stock 3-blade on the 50hp merc. I want to gain speed and any improved holeshot is secondary, but i want to gain speed with a 4-blade. I am already up to the max RPM so I am not looking to increase RPM or lose it. Would a single INCREASE in pitch and going to a 4-blade accomplish more speed? Again, most say go down a pitch but they also lose speed. I went 4-blade and dropped 3 pitch increments on my big boat and it increased RPM and decreased MPH so I have to assume the same for the littler boat which is why I want to go up instead of down as an offset. Here is a guy with a similar boat (not exact same) who went up a pitch when he got a 4-blade and he got better speed as I am hoping. [MEDIA=youtube]8ZnnF7Zs124[/MEDIA] Thanks [/QUOTE]
Insert Quotes…
Verification
Post Reply
Forums
Hobbies & Interests
Hunting & Fishing
Prop pitch change & 3-blade to 4-blade
Search titles only
By:
Top
Bottom