Guests - If You want access to member only forums on HSO. You will gain access only when you sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
chillincarp870

Help with finding the right Prop

7 posts in this topic

Hey guys can anyone help me with how to find the right prop for the right boat? What do I need to look for? I was looking on the internet but there is soo many sizes to choose from. any help will be very much appreciated

Share this post


Link to post
Share on other sites

Im no expert but here is my experience.

I run a Ranger 620 with a 225 evinrude Etec. I bought it new in 2005. The dealer propped it with a 4 blade 23 pitch prop. I ran, ignorantly, in bliss until this year. I was running at under 5000 rpms wide open and around 52 mph. Happy. Until I bought a new prop, due to a few dings in the old one. Upon researching it I switched to a three blade 22 pitch prop. I am now running 5600 rpms and 60 mph. No noticeable difference in hole shot. Now I am kicking myself four a few years of underperformance.

My suggestion is find someone who runs a similar rig as yours. Ask them what they run to start. Also find out what your motor's rpm operating range is at wide open throttle, found in your owners manual or manufacturers HSOforum online. This will help you find the right prop. You may have to try a few to get it right unless you ask someone who knows the rig you run. The guy I find was on a different site and ran the same exact rig I run.

As for the specifics as to pitch and diameter. The web has some great stuff to get you talking the same language as the prop experts.

Some prop dealers will let you try/return a prop if it is not dinged in anyway.

Share this post


Link to post
Share on other sites

Carpkillr,

Start by posting specifics about your boat and motor combo. Someone here may be running the same rig or already found the right prop.

Next go to a marine shop that has demo props. I found one in White Bear Lake and gave a credit card number for collateral and hauled one up to Lake Vermilion over the weekend. It was painted Blue. This is a very good way to go. I need to return it this week.

After trying out a LaserII 19" pitch on Mr Pike 17 w/115 Yamaha I was impressed. I had a stock Aluminum 19" pitch ran 5800 rpm and around 41/42 mph. Solo w/ a full tank I ran 46 mph at 5200 rpm. I think this is the right pitch prop for my boat. My motor is mounted in the bottom hole right now. I will try it out next time out with my old prop again.

I noticed quite a bit better hadleing. I will not buy a stainless prop now until I have tried it on my boat.

The rest of the guy's here have a lot of good info and they were spot on with most of it.

Thank You everyone that has posted help in these forums grin

Steve

Share this post


Link to post
Share on other sites

If you can post what your rig is (motor, boat), the prop you're currently running (pitch and dia) and what you're running for RPM at wide open throttle.

marine_man

Share this post


Link to post
Share on other sites

I'm sure someone here will correct me if I'm wrong, but a general rule of thumb is you raise the pitch to lower the RPMs.

Lowering the pitch will raise the rpms.

250rpms per full pitch size changes is what I've been told.

Share this post


Link to post
Share on other sites

i don't know the rpms. As i don't have the manual any longer. Is there anyway to find the rpms? It is a 25HP short shaft Merc. I believe a 2001 or near there. It is pushing a plain 16 ft alumminum northwoods v-hull. Thanks guys

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • Talked to one of their guys at the Ice Show last week,  what I believe was their entry level w/ramp (like 6.5' x 12') door was over $13k.   I thought it was quite pricey with really not much for any options.  Quality appeared to be good but way more then I would spend for it.  Their biggest selling point is the light weight and pounds per square inch on the ice.   They do have  channels on the inside to run you wired through if you want to add items.   The inside was extremely bright - almost to bright for my eyes.   I believe they said they are located in Litchfield, MN.
    • I would give your first statement 5 Pinnochios.  The first tax increase on people making less than $200k he signed was only 16 days into his first term.     "1. A 156 percent increase in the federal excise tax on tobacco: On February 4, 2009, just sixteen days into his Administration, Obama signed into law a 156 percent increase in the federal excise tax on tobacco, a hike of 61 cents per pack. The median income of smokers is just over $36,000 per year."       And then, of course, the big one is Obamacare, which was ruled a tax by the Supreme Court, and affects many taxpayers under $200,000.
    • Trump is way ahead of you there buddy.    
    • The only tax change that occurred was allowing the Bush tax cuts to expire. All tax bills must be introduced in the House of Representatives, so if you are unhappy with the current state of taxes, you should start there.   Also for those wondering, Clinton's tax increases would have added about $140 billion per year in tax revenue.
    • Sooooo....we were at a breaking point before Obama care....anyone actually think their policy under Trumpcare is going to reduce costs with an increase in benefits.....over an extended period of time?
    • The Art of the Deal......
    • So in a nutshell, you wouldn't really recommend buying U.S. Treasury bonds for an investment.
    • I'm not sure on how much foam it took.  It has over 2" on the bottom.  What happens with the cold surface is you have to "flash" the surface with foam then go over it again, it uses more chemical to do the same job.  So the price to do a cold house is more.  The foam comes out hot & creates more heat during the chemical reaction.     The froth paks were more expensive than having it done in my case.
  • Our Sponsors