Prop Pitch!!!

[1stoutlaw]

OK !!! I asked this question under the Prop section w/ no replies----I'm going from a 320 HP to over 500 HP in my 25' Baja----What pitch Prop are you guys running on your 25'/27' Baja with the 496---- 375/425 HP !!!.......Thanks!!! Mike !!!!!

 

[Ratickle]

I'm gonna give you my best guess, based on what some others have run. But, what prop, drive, etc are you running now? If we can get that, then we can get in contact with Brett and see what he's done with similar setups.

My best guess, you're looking at spinning a 24 or 25 pitch 4 blade with a little lab work.

You will also need to check your x dimension. Believe it or not, they actually came setup differently as they learned what performed the best. If yours is low, you will not want to have sternlift, and some 4 blades definitely have more than 3 blades. If yours is higher, sternlift from a prop will be somewhat okay, as long as it is not excessive.

So;

Current Prop brand, pitch, diameter, model
X Dimension
Drive model
Speed @ RPM

 

[Ratickle]

Found your original info in the Prop Tech section

What prop do you guys have driving a 25 outlaw (496/425hp or 502/500hp) I'm replacing a 320hp 6.2 w/ a 502/500plus hp and have a 19Mirage plus---I bought a used 23 plus and if it is too small will get w/bblades to rent a 25 plus AND then buy a brand new one !!!!Thanks !!!!

 

[1stoutlaw]

Thanks Ratickle----25'-Baja Outlaw had 320 HP/ w/ a 19 pitch Mirage plus---1:50 drive gears-----ran perfect-----Have a friend that just bougt a 1994 24" Outlaw/ w/a brand new 454/330 HP witha 21" Mirage Plus---------a dog getting up on plane----We put my 19" Mirage plus and she is perfect!!!! Both have a low -X-dimension point------So I bought a used 23 pitch Mirage Plus to try as I'm replacing the 320 ho with a 502 HP as You have helped me so far and know !!! I wished other guys with there 25' outlaw with the 375/425 HP would just let me know what prop pitch they are running!!!! I have read this low dimension does not do well with a 4 blade prop !!!! ????????????????????/ Thanks Mike !!!!!!!

 

[Ratickle]

I shot an email to Brett, I'm sure he'll be on as soon as he gets a chance. From what I know, there are plenty of way to have four blade props with no stern lift. I run 26, 27, and 28 pitch 4 blades on the Marlin, and stern lift on it would be a really bad thing.....

 

[bbladesprops]

Hello,

Labbed 25 M='s for speed and 24-24 Bravo 1's for all around performance.

Also, 23 Rev 4's can be a great cost effective option.

You state you have 500HP. I would test something/anything close to start with. This will give us a better base line and point us in the correct direction. We have tons of test props to try if you are interested.

Brett

 

[Ratickle]

I knew you'd have worked with a similar setup before. Busy???

 

[bbladesprops]

Yes, we are busy!
Thanks for the understanding.

Brett