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Thread: 2002 Crestliner 1750 & Merc 150 4S Prop? Reply to Thread
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Topic Review (Newest First)
03-10-2020 05:26 PM
MuskieMat Yes, closed. I was happy with the results so I didn't try and tuning.
03-10-2020 12:57 PM
bersh
Quote:
Originally Posted by MuskieMat View Post
Vent holes have solid plugs in them no holes.
So by that I assume you left the vents closed. I'll start that way and might adjust to experiment, but was curious.
03-10-2020 11:06 AM
MuskieMat Vent holes have solid plugs in them no holes.
03-10-2020 10:37 AM
bersh
Quote:
Originally Posted by MuskieMat View Post
I had the same blowout issues with my 1875 Crossover 150 hp merc went from a 19p tempest to a 17p merc rev4 prop fixed the problem. Its crazy how good the boat will corner now. Kids are much happier tubing. Prop guy told me not to run a Aftermarket 4 blade and try save a few bucks I am glad I listened and went with the rev4.
I just bought a new Rev 4 17P on ebay for a screaming deal, so hopefully it will be my huckleberry.


How did you end up venting yours?


I only have about 3 months to think about it before the boat goes in the water.
09-24-2019 12:59 AM
MuskieMat I had the same blowout issues with my 1875 Crossover 150 hp merc went from a 19p tempest to a 17p merc rev4 prop fixed the problem. Its crazy how good the boat will corner now. Kids are much happier tubing. Prop guy told me not to run a Aftermarket 4 blade and try save a few bucks I am glad I listened and went with the rev4.
09-10-2019 09:25 AM
bersh If anyone is curious or interested, I have the 17p Solas listed on the Swap Board.
08-21-2019 08:15 AM
staylor Youíve got a lot of options. One is to find a decent prop shop and take Tom Pís advice and have some cup added to the Black Diamond aluminum. Make sure you tell the prop shop to add some tip cup in addition to added cup on the back face of the blades. Cupping on the back of the blades adds a little pitch to the prop and helps it to hold better on turns. The added tip cup will get the bow of the boat up better without excessive trim. The second option is to have the Vengeance into the prop shop and have it knocked down to 17 pitch along with at least the added tip cup- I canít tell you if you need more cupping on the back of the blades of a Vengeance without looking at the prop, but the prop shop can tell this easily.

If this was my rig, Iíd try running a 17 Tempest 3 blade- and these are fairly easy to find used/on-line. This prop has a high rake blade to lift the bow and should run well right out of the box. The downside is that you may pick up some blade knock with the 150 4S at idle speed in gear which may be cured with a different hub kit from Merc. I had this issue with a 21 pitch Tempest on my 150 4S on a 17 ft Starcraft, but it may not be an issue with a lower pitch. Iíve found that the sweet spot on the 150 4S is to prop right up to 5600-5700 rpm with a light load.

The Nemesis is a decent aluminum prop, but I suspect it will not have the top end of the Vengeance. The Merc Rev 4 is more of a big boat prop so I donít think it would have the top end of the Vengeance. The 4 blade Trophy Plus is a small hub prop and vents around its hub on the 150 4S. I like the Trophy Plus and currently run a 23 pitch modified to a 24 pitch on my very lightly rigged Starcraft with 150 4S- but with the small hub I think it would give you excessive venting on your rig- and pulling a tube is probably impossible.

Life was a lot easier when most props looked the same, had 3 blades, and you had a choice of aluminum or SS only. Iím from the ďBronze AgeĒ- when I started boating in the 1950s the choices were aluminum or bronze only, and 2 blade props were quicker than 3 blades....
Doug
08-21-2019 05:15 AM
2catch1 This is odd to me. I have a 194 princecraft ventura deckboat with the same motor and get 46-47 mph with a 3 blade 19p merc aluminum prop mounted on the lowest hole running 5600-5800 rpms. I guarantee you my boat is a fat pig compared to yours. I would think that would be a 50mph plus boat with the motor running WOT. Heck I have only ran aluminum props too. Right now I have a 4 blade 17p turning point ( nice prop, never blows out on turns ) I keep on for skiing and tubing this time of year. Boat holds 10 people. I get about 42 with 2 of us in it and fishing gear but I have to back off as it hits the rev limiter ( around 6200 ).
08-19-2019 07:58 PM
bersh Finally got around to testing the Solas 17p, and I like the 19p better. Given everything going on right now, I doubt I'll have a chance to tow the kids on the tube before I pull everything (early end to the season due to shoulder surgery). I lost a considerable amount of top end, it seemed to blow out a bit easier, and cruising speeds at various rpms were considerably less than the 19p. I did gain a couple hundred rpm on the top end, but it's useless as I lost 8 mph. I'm pretty shocked, actually.


Guess I'm still shopping.
08-01-2019 07:08 AM
bersh I tried out the Solas 19P last night. Close, but not quite right. Jumps out of the hole good, but I think the Vengeance 19p is better. Had a bit of chop so top speed run will need to be rerun, but only turning about 5200 and 48 mph. It does seem to get and stay on plane a little easier and lower rpm.speed. The biggest thing is it grabs the water much better. I could still blow it out if I really cranked the wheel, but I had to work at it.

This weekend will be the test as I'll be pulling some kids on the tube.

I'm probably going to order a 17p to try, so chances are good there will be a like new Solas 4 blade prop for sale in the near future.
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