Hey guys I have a 1987 175 that’s on a 87 184.it does not have a jack plate just factory.currently I am running s 25 pitch four blade and my hole shot is incredible.?to you guys is can I turn a 25 temptest or would a 24 better suit my needs.wot now I run 59-60 and 5800 rpms.i just am
looki g to gain a few miles an hr without installing a plate as the boat won’t fit in the shed if I do lol thoughts??
23M or 25M Yamaha or 23 or 25 Tempest.
Originally Posted by MMosher
The temptest also comes in 24, would he be better with it vs the 23/25 temptest? (Is the 24 temptest odd in a way, I’m curious it theres a reason as to why you didn’t suggest it.)
Depends on how tired his engine is but yes 24 is an option.
My motor is not tired at all
she runs like a screaming monkey lol has never been ran hard been owned by two older gentleman befor me I know that and they both said they never opened it up that was 6 years ago since I have ran it thru college tourneys and local
ones
never hard though love here engines I was just wondering if a 25 or 24 is best because Yamaha ones are so hard to find
And wat I can expect by propping from s 4-3 blade of I would
gain 2-3 mph or not
You should definitely pick up a few mph going to a 3 blade.
65 give or take with a properly set up 175/184. Drive it like you stole it.
Wat bout my rpm going form the 4 blade 25 amd 5800 rpm and going to a 23 will they be tooo high
You don’t know what brand the 4 blade is, right? Gonna have to take a gamble most likely on the 3 blade pitch. I think the 23 would rev too high, but I’m not an expert.
It does not say a brand on it just 25 guess I’ll look
for a 24 and try that or borrow a friends 25 and see how she turns it
Borrow 23 and 25s and see how they run. A 25M should get ya where you need to be if your engine is strong like you say it is.
It’s just so hard to find a 25m anymore lol used thatbis is good condition
Just my opinion.
If you are turning a 25P 4B @ 5800 on a 184 and only getting 59-60 mph, your prop needs help.
Kick the back of the shed out 2', put a 5-6" JP on the 184, find the right prop and set-up, be happy at 65-67mph.
Ed R.
2006 ChampioN 198 225 Optimax
25m’s pop up occasionally and they are good props. Watch the props for sale page here every day and def join Facebook for nothing other than all the boating/fishing/tackle pages.
Man! You guys are good! I didn't even see what brand motor he's running.
Already on it and watch bbc just bout every day lol thanks for all the help will let you know wat works best
Man! You guys are good! I didn't even see what brand motor he's running.
Its a mercury, get with the program.
I did some prop testing on my 186/175 a while back that may give you some information to help make a decision. I didn't play with set up as I was only interested in learning about the prop difference with an identical set up. The results from the props I was able to try are below. From that, I wound up with a 23" Tempest Plus and consistently ran 63. I could have played around and got more speed but the overall performance was so good I didn't want to mess with it.
Set up – 186 Champion with 175 Optimax set 3 ½” below pad with a 6” jack plate – One person, 30 gallons of gas, plenty tackle, and a little water in the livewell.
Speed from Garmin GPS – RPM and GPH from Smart Craft gage
25” High Five
3000 RPM – 26.3 MPH @ 4.2 GPH – 6.26 MPG
4000 RPM – 40.3 MPH @ 7.7 GPH – 5.23 MPG
5320 RPM @ 13.9 GPH – 4.11 MPG
25” Laser II
3000 RPM – 24.6 MPH @ 4.1 GPH – 6.0 MPG
4000 RPM – 39.3 MPH @ 7.2 GPG – 5.46 MPG
5260 RPM – 59.7 MPH @ 13.9 GPH – 4.29 MPG
25” Tempest A40
3000 RPM – 31.5 MPH @ 4.6 GPH – 6.68 MPG
4000 RPM – 42.6 MPH @ 7.4 GPH – 5.76 MPG
5310 RPM – 59.6 MPH @ 14 GPH – 4.26 MPG
24” Tempest Plus
3000 RPM – 30.9 MPH @ 4.7 GPH – 6.57 MPG
4000 RPM – 42.1 MPH @ 7.3 GPH – 5.77 MPG
5510 RPM – 61.2 MPH @ 14 GPH – 4.37 MPG
23” Trophy plus
3000 RPM – 30.6 MPH @ 4.4 GPH – 6.95 MPG
4000 RPM - 40.7 MPH @ 7.3 GPH – 5.58 MPG
5540 RPM – 59.9 MPH @ 13.8 GPG – 4.34 MPG
would love to have a bigger shed to add a plate but just can’t swimg either right now so fig i would start at the obvious the prop lolJust my opinion.
If you are turning a 25P 4B @ 5800 on a 184 and only getting 59-60 mph, your prop needs help.
Kick the back of the shed out 2', put a 5-6" JP on the 184, find the right prop and set-up, be happy at 65-67mph.
Reply With Quote
