Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

JohnnyBoy1963 · Jan 5, 2006

I just bought a new (used) rig at the end of last year's boating season in Wisconsin and want to get it propped right first thing this Spring. I have a 1993, 150 HP Johnson Fast Strike on an 18' Lund Gransport Tyee. It had a 14.5 X 19 aluminum prop. When I tested it, it went slightly over 6,000 rpm and approx. 52 mph. The book says WOT is 4500 to 5500 rpm. I then got a 14.25 X 21 Aluminum Prop to try from my local dealer and WOT was about 5800 rpm with about the same top speed. I discussed with the dealer and we were going to try a stainless steel prop at 14.25 X 21 to start with. Can you provide any advice ? I am not as concerned with the ultimate top speed as I am in overall performance through all speeds, good hole shot when pulling a skiier, good cornering at mid range speed and ability to handle rough water as I fish on Lake Michigan. I am leaning toward a stainless steel prop.

walleyehed · Jan 5, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

Welcome aboard, Sir!!! There are several factors that can/do come into play here. If both props are the same manufacture, we need to know that..are they OMC?? Michigan wheel?? The first Item that catches my attention is the fact the 19 has "about" a 14% slip ratio-not bad...the 21 has "about" 16% slip...not as good and should be a bit better. The 2 differences and the fact you have about a 200+? RPM drop with 2", yet the same speed, may indicate we have 2 different prop styles. The Fast strike is a 60 deg. looper, and don't let anyone tell you "you HAVE to run it at 5500"....5800 is much better. I would most likely be looking into SS if it was my boat, and I've found the type of prop that suits this style of boat best is an "over-all" lifter, and with the power you have available, a bow-lifter is not out of the question. Another important item is where the engine is mounted on the transom...is it in the top hole??? or lifted some??? If you can get me a P/N off of those props, that would help. Is your speed measured by GPS??? If you can get me a few answers to these questions, we can go from there.

JohnnyBoy1963 · Jan 10, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

Kenny, It took a while, my boat is winterized and stored, but now I have the prop #s. The Prop I bought the boat with: PN #391201 14 -1/2 X 19 With this prop I tested the boat before I bought it. I was running 50 -52 mph...and it was slightly over 6000 rpm...maybe even 6100-6200. At any rate we realized it was under propped, and I was able to knock $300 bucks off the firm price to get another prop down the road. I then want to the local dealer and got this prop before I went out again: Bombardier/Evinrude/Johnson 130-225 HP, V6 Aluminum PN #177136 14.25 X 21 With this prop WOT = 5800 rpm Top Speed approx. 52 mph Now, these runs I wasn't very meticulous in the data...but it is pretty close. I was just using the Tach and speedo that came with the boat. The fish finder has a paddle wheel and that was giving almost 2 mph higher. I didn't have a GPS with me. I wont be out till early spring...and plan to get a stainlees steel prop as my main prop and will keep the original prop as an emergency spare. Looking for advice on a good choice SS prop for overall use...hole shot, skiing, cornering, all speed ranges, etc. In your reply you said my motor is a 60 degree looper ? please educate me.. Also you said a overall lifter or even a bow lifter prop would be good...I'm not familiar with those terms. Thanks, John

jimmbo · Jan 14, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

The OMC/Bombardier Raker is a nice prop. I was running the same 19" alum as you, switched to the 20" raker. With no drop in Rpm I gained 4 mph and the boat road higher and could be trimmed out further. It felt like a whole different boat. When I traded my outboard in for an I/O I kept the prop, had it rehubbed it a Volvo SX spline and am presently using it. Makes the I/O handle better too. When I boat at lower altitudes I use a 22" Raker.

walleyehed · Jan 15, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

John, the "over-all" lifter, such as a Turbo1 or Stiletto is a real good prop for that rig. I've ran about everything on my 18ft alum...very simular to yours, and I do run a couple of Rakers, but they are Original, OMC Rakers, not BRP, which are contracted through a different source. The original Rakers seem to be a bit more aggresive. By over-all lift, I mean it lifts the bow and the stern...in that order. The bow-lifter does pretty much what it's name states, and given enough power (you have) and getting the prop up through the surface is where the Raker does it's best work. It holds the bow up well without porpoising unless the rig is way out of balance or under-powered. I've also ran a Turbo TXP which is an extreme over-all lifter, and really seems to just begin to perform at 50 and above speeds, on my rig. Most likely not a good over-all prop though for what you are looking for. It would be nice if a guy could test a Turbo1 in a 19P...it would drop the R's a bit from the alum 19. The 21 you tried has longer ears and a narrower profile than the 391201....391202 would be the same blade design but a 21P..I don't care for the 17 series props..they have proven slower than their earlier versions. I'm thinking out-loud here...LOL... We "could" go with a 20-21P if we knew which holes the engine was mounted in, and if we have room, we can go up to get some R's back. I think...knowing the boat you have...if it were me, I would try a 14-1/4X20 Turbo1...I'd say try a Raker-and you always can, but I "think" the Turbo1 will suit your rig better for over-all performance.

JohnnyBoy1963 · Jan 16, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

Thanks So Far ! FYI..My motor is mounted directly on the transom. I had looked at the Stilleto Advantage II Prop in Overtons (ST20319 or ST20321). The description sounded good for overall performance at low, mid and high speeds and it was described as good for pulling skiers, adverse water and carrying loads. The price at $310 seemed reasonable. I looked up the Turbo1 on the Net and it also sounds just as good for overall use. It said for medium to heavily loaded boats...I'm not sure what I would classify mine as. The aluminum Lund Tyee is lighter compared to fibergalss, it is a 1993 so it is not as wide as the new Lunds. I do expect I could have a full boat of family/friends at times when skiing. The price on the Turbo1 was $275 on the particular site I was on. They both sound good..so now I wonder which one to try. Ideally I could find a dealer that has them to try out. If I have to just order one then I am a bit unsure of which one and the pitch. The Stilleto can be bought in either 19 or 21 pitch with no choice of 20. The Turbo did have a 20 along with the 19 & 21. Other questions - with a bow lifter like the Turbo ...will I have to worry at all about planing out quickly after coming out of the hole, especially with a skiier. Also...educate me on the 60 degree looper term for my motor. Also...do you have any experience or notes on the 1993 150 Hp Fast Strike, it came with the boat and the overall package and low hours on the motor/boat ..for the price I went with it after a test drive...but really didnt research it. Thanks Much ! John

imported_bjs · Jan 16, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

question what does a longer thinner blade do vs a shoter fatter blade.i thought i would ask.boat owners world has good prices on props two give them a try.

walleyehed · Jan 16, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

No, John, it's not going to affect your plane-out.. The main difference I see in Stiletto vs. Turbo is the Turbo seems to be a better over-all with a bit more top speed, and I think that is a result of being able to run the Turbo with the engine mounted higher-not in the top bolt holes. If you have the Narrow boat, it will run good with a turbo in the third holes from the top. The engine must be lifted on the transom by removing the mounting bolts(just loosen the bottom 2), lift the engine with a cherry picker or slide a piece of wood under the skeg and raise the trailer jack until those holes line up.

JohnnyBoy1963 · Jan 17, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

Thanks Kenny, Well I'm going to have to try the Turbo1 then, thats all there is too it. I looked at you prop test results and it looks to be a good one. So, do I go with a 19, 20 or 21 pitch. The 19 pitch aluminum had too many rpms, over 6000...the 21 aluminum was about 5800 tops. I assume the deeper cupping and design of the stainless Turbo will drop the rpms ...so I am thinking about tyring the 20. Sound good ? Also...lifting the motor to the third holes...I can try it. My boat is stored and I was not able to check that it is currently in the top holes yet...I will try to get a look at it in the next few days. If I remember right...the cavitation plate was about even with the bottom of the boat. Sounds like your saying that is too low ??? Also, if I just raise it up to the 2nd or 3rd holes do I need any other hardware ? Witout having it here to look at ...I am wondering , seems thr motor should bear its weight by hanging on the transom and then also be bolted. Also, if you have time, I had a couple motor questions in my last post. THANKS ! John

walleyehed · Jan 17, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

John, the 60 degree motors are loop-charged induction...the 60* is the angle of the cylinders in relation to the crankshaft. The 60* engines are narrower than the 90* engines, and the 60's have alot more torque.. Most of the early 90*'s were crossflow induction except for some early V4's-real power-houses.. As for the 150, 60* looper, prop for 5800-6000 with your normal load, run 87 Octane fuel(keep it fresh) and run ONLY the correct Champion plugs...it'll outlast the boat...

No extra hardware is needed to raise the engine, but I would recommend some sealer for the bolts. The transom braket on the engine does not require that the fwd "arms" be setting on the transom...I'll take a pic of mine and show you....

walleyehed · Jan 17, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

Here's a pic of how high the engine is from the transom...also how far back....

And, of course something else you may be looking for....

JohnnyBoy1963 · Jan 19, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

Thanks for the info Kenny, WIll I need to buy a special thrust washer or hub as extra parts with the Turbo1..or can I use my existing washer ? 87 Octane ? I have always used the premium 92 or 93 with my old boat(a 1979 90 hp Merc) thinking it would make it run the best. I then filled my new boat up with premium and stabil before putting it away for the winter ? Why run the 87 ? Thanks, John

walleyehed · Jan 19, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

Unless you have very high comprssion heads and the timimg advanced from stock, you're wasting money. The engine runs cleaner, smoother and LONGER if you run 87...89 if you must. Stock thrust washer will work with a Turbo for the JohnRude (Turbo built for JohnRude)...won't work with just any Turbo, such as 1 built for Merc...It has to be for YOUR engine for the thrust washer to work......Hope I didn't confuse you...

Jdeagro · Jan 21, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

I don't want to start a debate, but I find it interesting that JohnnyBoy (and everyone else) is in search of a "prop" (propeller) that can provide better boat attitude during accelleration, better stability in turns, smoother ride in rough water, and more low end torque. More top speed would be nice but not critical. Sounds like a lot for a device that is designed for "Propelling". I understand that different propeller designs provide different side benefits and performance as the Testing presented here by Kenny shows. And that is very valuable information. The ride and handling of the boat is a function of hull design. Looking for the prop to take on these tasks may and often does compromise the efficiency of its main function (propelling). If I were to compare it to a car, would we expect that changing the gear ratio in the rear end would make the car corner better, or ride smoother? I am going to stop there, as others who have read my posts and know what we sell will know where I am going with this. Props are not the "end all" for everthing from accelleration to top speed, handling and controll or what else may need improvement. Expecting so much may leave the boater with unsatisfactory results, and continueing the search for the ultimate prop. There is no question that some props are better at one thing or another, but it is a lot to ask of one link in the chain.

JohnnyBoy1963 · Feb 27, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

Kenny, Another couple questions. I like the sounds of the Turbo1. I went down to my local marina, 5 blocks away and on the water, and they only have OMC and Mercury props. He has a whole rack of Vipers for testing...so I could try them until I found the best one. I see some info on Vipers in your Prop Test results..doesn't look too bad. 1. What is your opinion on going with the Viper since I have easy access for testing ? 2. Is there an on-line place I could purchase a Viper (I would want the best price figure so I know what I should pay (offer) the local dealer for one ?). Or are they only available through dealers ? 3. How can I get Turbo props to test ? I found places to order them online...but then Im guessing on the pitch. I guess I could call around to local dealers within an hour drive to see if anyone has them ? If I were to gamble and just order a 20 ptich...would they exchange it if I needed to go up or down in pitch and didn't mess it up. The dealer was talking around near $500 for the Viper. I saw the Turbos for $275..which I would prefer paying of course...but am uncomfortable without test runs. Thanks for the patience. John

walleyehed · Feb 27, 2006

Re: Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

John, fire me an email to ktsander@st-tel.net.

Looking For Best Prop for 150 Fast Strike On 18' Lund Tyee

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