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| I recently purchased a Ranger 692VS with a Johnson 175 fastrike. It currently has a stainless 4 blade that says "shooter". Performance seems ok, the tach is not functioning so not sure about rpm, speed is +/- 50mph. Holeshot is a little heavy and needs trim full down to keep the bow down.
Just wonerdering if anyone framiliar with this set up might recommend some other props to try. I enjoy tuning and trying to optimize performance.
RJ  | |
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| Never had one with a fast strike, but I've owned several 690 series and have driven and helped rigged others.
690's and 692's with Merc's on them has been my experience, primarily with 175 EFI's and one with a 150 Optimax.
Tempest 21 pitch seems to work very well with this setup.
Four blade I had on a 690 was 23 pitch and it came out of the hole like someone lit a firecracker under it's fanny. It was about 1.5 - 2 mph slower on top end.
If you have a 690/2 that is doing 51-55 mph loaded you are running that boat where it was engineered to run. My experience with all boats is that you need to be trimmed down for hole shot (if that was your question/comment). But once on plane all 690/2's I've owned or driven have been receptive to trim input. However; I have found that with a full tank of fuel they can be a little prone to some porposing (not severe) if given too much trim input. All 690's I've run seem to run optimum with 1/3-2/3 tank of fuel.
Hopefully this helps some.
Four blade - should equal better hole shot and a little better "bite" when operating at lower RPM's, for say in rougher waves. You should be able to keep the boat on plane at 15-21 mph and easily be able to work your way through 21/2 - 4 foot waves without beating the crap out of your rig.
Three blade - if set up properly will give you a decent hole shot and should give you excellent tork/bite from mid-range to upper-range RPM's. But for keeping the boat on plane in the situation described above will likely have you "working" the throttle a bit more to keep it on plane.
Top-end... it is really a neglegable point to most anglers as 1-2 mph on top end. I suggest propping your boat for the conditions you are in most of the time.
That said... I am on the hunt for a Rev-4 Merc prop with 23 pitch if anyone reading this has one they want to part with. I have an extra Tempest 3 blade 21 pitch that is in excellent condition I am willing to trade or I will buy the 4 blade for cash if you are reasonably priced.
Hope this info helps you some.
Mark Hintz
Eau Claire, WI | |
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Posts: 176
Location: Tomahawk, WI | I agree with Mark. My 690, the Tempest 21 pitch is great for hole shot and mid range, i also tried the Trophy 4 blade 23 pitch and it performed poorly, terrible holeshot but great bowlift and top end speed.
Mark, have you ever tried a 23 pitch Tempest on a 690? if so what was the results? RPM's?
I just upgraded my 175 EFI to a 175 Opti and thinking i could turn the 23 pitch because i can hit 5800-5900 RPM's with this new OPTI with the 21 pitch.
Mike Bruggink
Tomahawk | |
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| Pantlegger,
I have a friend with a 692 with a 23 Tempest (Jono, from this sight) on it, however he has a 150 Opti. Decent hole shot, but if I remember right he max's out around 5,000 RPM and mid-40's on a good day. Which quite frankly 48-49 is not uncommon for most 690 series if loaded like many people load them, and the hull isn't waxed, etc. Most days on average 48-51 is good performance out of that hull.
I can run the EFI 3500-4000 get decent economy and run 34-39 mph depending on waves, etc. and get a really nice ride out of that hull. Just seems to be a good balance between ride/performance/economy.
Odd though? I had a 690 with a 4 blade and the top end didn't seem to be hurt all that bad? I think Jeff Redig from this board has a 4 blade on his if I remember right? Jeff...if you read this chime in.
Curious, what did it cost you to upgrade to the Opti versus rebuild of EFI (assuming that's why you switched)..?
Send me a P.M. if you want. I appologize for delays, I only see the board about once/twice a week any more.
Best,
Mark
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Location: Twin Cities | Mark H. - 8/18/2009 3:27 PM
Odd though? I had a 690 with a 4 blade and the top end didn't seem to be hurt all that bad? I think Jeff Redig from this board has a 4 blade on his if I remember right? Jeff...if you read this chime in.
Best,
Mark
Yep, mine's got a 4 blade trophy I seem to recall the pitch being either a 21 or 23, i'll have to check when I get home. I can hit 50mph with gear and 3 people, i've seen 56-57 by myself with pretty much no gear and no gas, that's GPS and I was impressed. Hole shot is great with the engine trimmed down, it leaps up onto plane instantly at more than 1/2 throttle regardless of gas/gear/people.
I spend most of my time running between 30 and 40mph to try and save gas, i've been surprised how little it can use when driven carefully. Had it on some rough stuff on Mille Lacs a couple times and it was non issue to even get up on plane and run without beating myself or the boat up.
Thanks again Mark for working it out for me to end up with this rig, it is fantastic beyond what I thought it would be, you were right on all counts!!
-jeff | |
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Posts: 176
Location: Tomahawk, WI | Mark RJ,
I have a 1998 690vs that is in near new condition, it had a 175 Mariner EFI which blew about a month ago with no warning whatsoever. It always ran great except a little finicky when trimmed up at landings. I always ran Mercury oil and quickleen in every tank. It blew the #2 cylinder, the dealer did not break it down to find the cause because of the expense. My dealer said it would be $7500 for a remanufactured power head installed. A new 175 OPTI would be 11,600 installed with a 5 year warranty, kind of a no brainer, i went with a new OPTI. He gave me 1000 for my EFI, which makes it 10,600 with tax total bill was 11,245. This motor is still in breakin, but i can already tell it has more power. This new Opti is smooth, and starts with the turn of the key everytime.
The old Mariner with a 21 pitch Tempest would go about 52-55 depending on load and a great holeshot prop was not knicked at this time, it would only turn about 5200 rpm at wot. Now my Tempest is kinda beat-up every blade has nicks and gouges (not pretty). With the new Opti i can get about 52-56 depending on load (even with the nicked up prop) and turn about 5800 rpm, yes, i can actually hit the rev limiter. I was thinking about buying a 23 Tempest which i believe would give me the same holeshot, more top end, and lower my rpm's about 200 (100 rpms per pitch i believe is the formula). As you know the props are expensive and i would like to try one out before i buy it. Dont get me wrong im happy with the 21 Tempest, but as stated above it is knicked up badly and in need of replacement. I will keep my 21 for a spare.
I also tried a 23 Trophy small hub which i purchased a aluminum blowout ring from Mark at BBS to match up to the large hub on my motor. The numbers were poor, took along time to get on plane, still would blowout even with the ring, but had great mid range pull and a littly better top end and bow lift, pretty squirrly at wot. rpms were about 5700 with 20 psi water pressure, so the rpms were right there but that holeshot sucked so i put the Tempest back on. Dont get me started on porposing, Mark is right when he says these boats run best with about 1/2 tank of fuel. Mark, I cant send you a pm because you dont have the little tab under your posts to pm you, i tried with your user name and that didnt work.
Sorry RJ for kinda hijacking your post, but there is alot of info you can learn about propping your 690, hope some of this helps you.
Jono buddy, have any comments?
Mike | |
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| Mike,
You can probably get your current prop redone for about $130, at least that is what I have paid to have a few stainless props redone in the winter here in Madison...with the prop redone it might be just as good as buying a new one at $350 a pop...?
just a thought..
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Location: Contrarian Island | also, totally agree to keep the tank no more than 1/2 full, I actually get a higher top speed w/ 1/2 tank than 1/4 tank... over a 1/2 it does tend to want to porpoise but I almost never have it that full, 1/2 tank is 21 gallons..I think I can go pretty far on that! ; ) | |
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Location: Twin Cities | I checked my prop last night, it's a 23P Trophy.
When you guys get porpoising, don't you just adjust your trim to where it doesn't porpoise? I occasionally get that but it can always be dealt with by adjusting trim.
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Location: Contrarian Island | mine doesn't seem to be too effected by trimming it differently..seems to happen at the lower rpms of 3700-4200, over 4200 it can be corrected but my suzuki sips fuel at the 3800 range and when i have over 1/2 tank it does it and trimming it doesn't fix it....so i don't fill it over 1/2 full and the issue is solved..plus I can go faster with less fuel and I like to go fast. ; ) | |
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Posts: 726
Location: Eau Claire, WI | Hey guys. I've got a 21 tempest plus on mine NOT 23. I get 46 gps on it @ about 5K on the tach. Thats a full tank, two/three guys and gear. So ya you lose some top end being 25 horses down but 46 is still plenty fast for me and I love this rig, great to fish out of and has good karma. LOL. I plan to stick with this boat for some time to come.
I'd like to try a 19 on mine (if anyone has a 19P tempest plus, please let me know) to see what its like. My hope being that I'd get a little more hole shot and maybe an extra couple mph by moving the revs more into the powerband. I would think at least I'd gain a little more holeshot and move the revs up a bit.
Bass boat central dot com is a good place to go for talking tech. When I was looking for props, many recommended the 19 or 21 tempest plus. I found a good deal on a 21 so I bought it after testing first with a 21 from Mark H. Interesting to note - not all props are the same! The numbers may match but performance can be different. When I tested w/ Mark's 21, I got a few more revs than I did with the prop I purchased. No earth shattering difference but still there was one.
The original prop when I bought the boat was a 15P hi 5....lots of holeshot, no top end. My rig is a '99 692 w/ 150 opti. I also have a 15 hp kicker on it. If someone is looking for a 15P hi 5, I'd trade for that 19P tempest I'm looking for...
So RJ, I'd say you're doing pretty good. I'd try a 21 tempest plus on it to see how it goes but your top end is right in there for what those boats can do. I will defer to the guys running 175s over my 150 but that would be my advice, try it out and see. From there, if you are going to experiment then go 19 then 23 in that order and compare notes.
I think the 690/692 came from the factory w/ 21 lasers but this is a fact worth verifying as I might have it wrong.
Mike, how was your trip? shoot me an email! hope the gods paid you back after that engine debacle.
BN, what prop you running on that Suzi?
Jono
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Posts: 346
Location: In the slop! | Give a 22" Raker a try if you can get your hands on one. | |
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Location: Contrarian Island | I believe it a 23 pitch, standard 3 blade Suzuki stainless, it doesn't come out of the hole like a rocket but it is a 4 stroke and not a 2 stroke w/ more zip. I get 51.8 on gps at 5800 rpms at WOT w/ 1/2 tank of gas, 2 guys and more plano's than I can count in storage. The ol EFI before it blew had it going about 55. so I only lost about 3mph but the fuel economy when I'm not WOT which isn't very often is amazing....
Edited by MSKY HNR 8/19/2009 10:32 AM
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Posts: 176
Location: Tomahawk, WI | Brad, my 21 was re-worked before for about 120, but i dont think it should be worked again, i dont know if they just grind them down or if they actually build them up and grind, then recup them? BBS guys say you need to know who reworks your prop, you could get screwed on Dia. and cupping. If i do get it reworked i will go thru Mark at BBC. | |
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| Thanks for the responses...no worry about hijacking...its all good
I also get the porposing when the tank is full, it seems i can trim out of it. It bothered me at first as my Warrior will never porpoise.
Once I get the tach fixed i will have a better idea where i'm at but it sounds like im in the ball park anyway.
RJ | |
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Location: Twin Cities | I wonder why you guys get the porpoising, I don't have a kicker on mine FWIW. When I do get it, it's always been trimmed out, that's odd i guess.
Oh and FWIW, i'm knocking on 52-5400 at top speed with the 23p Trophy and the engine is a 1996-7 175 EFI Merc.
Edited by JRedig 8/19/2009 1:01 PM
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Posts: 176
Location: Tomahawk, WI | I have a Yamaha T8 Kicker on mine plus i run a 36v trolling motor, i have the big TM batterys and 1 starting battery. Yes the boat very heavy in the back. I used to have a 6 gal built in gas tank also in back, it was factory installed there for 2 stroke kicker motors with mixed gas (must have been an option). I didnt need that so i put a 3-way valve in the main fuel line and dont use the back tank. | |
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Ranger 692 prop recommendation