StingRay XRIII Hydrofoil Stabilizers for Boat Motors
Read the reviews on this product and was hesitant at first. But, I noticed most of the negative reviewer's problems centered on installation and durability. Sometimes a universal fitting product can require a bit of "debugging" and common sense on the consumer's part. Since I had success with Stingray's wing type hydrofoil on another boat before, I went ahead and called the Mfr to see if any sense could be made of all this. The rep I spoke with made some just-in-case suggestions to address these two issues. The anode needs a lock nut and in some cases a longer bolt. Or, as in our case the anode has a protruding contour that matches up with a cavity/slot on our cavitation plate. Unfortunately there is no "industry standard" to these anodes so you might need to improvise--no big deal. Just to be safe I went ahead and drilled a hole through each side of my cavitation plate to line up with the holeslots under each "speed cap" and installed two SS screws w/ locking nuts. We have a 20+ ft. tournament bassboat with a Mercury 225 &12" jackplate. Even at 70 MPH + my XRIII is going nowhere and with no excess movement there should be no cracks surfacing--haven't seen any yet.
This thing looks great on the boat and WOW! What a difference! I would have never guessed there was so much room for improvement in performance! We now have near instantaneous holeshot and incredible stability at higher speeds. It is also so much quieter when we run. At low speeds, there is hardly any bow lift and I do not have to keep an eye on backwash anymore. Our boat runs almost level (with only the last 18" of hull on the surface) and hugs the water like a Ferrari hugs a mountain road. Such a great feeling of control. We have not noticed any loss of speed--although it feels like your moving slower due to the smooth silence. Haven't run it enough to get a feel for fuel savings, but judging by the lack of a rooster tail while trimmed out, I have to think we are running much more efficient. I was about to get some custom trim tabs made to deal with bow lift at slow speeds, but I am glad I tried this first. Marine Dynamics has ironed out the bugs--this thing is really amazing! If you have a bass boat that likes to run on the last two feet of the hull, you're in for a real treat if you try one of these. I honestly cannot get over the difference.
November 29, 2007
Performance on an Optimax 150
I was skeptical about the product, but it advertised what I needed. I have a 2008 Nitro Sport 288 with an Optimax 150 (2007) and it had serious bow rise until approx 30 MPH. This is fine if all I was doing was fishing because the Optimax is quick, however, if you put a tuber or skier behind, you need to get the bow down and keep it down even at 20 MPH or less so you can see what the heck you are doing. I installed this product and it was amazing. There was nearly ZERO bow rise. It still truly did not break plane until approx 30 MPH, but there was no bow rise. I did have to drill 2 holes even though it did advertise NO DRILL, however they are small and can easily be filled and painted with touch up if need be and did not effect the structural stability of the lower housing. I can't say there was an improvement in fuel economy; if anything it may have decreased slightly, but the increase in performance was significant(steering, stability, etc.) I am not even complaining because I can't say I have noticed. Safety is number one in my book. I have read that the bolt needed to be longer, etc., but mine was fine. I did use some epoxy on it for good measure as well as with the screw covers, but that was just a precaution. I will advise anyone that this review is from my boat and each boat and motor will be different. I am satisfied and it suits my needs.
June 29, 2009
Not well Made
Bought Last Monday- Put on boat Tuesday per instruction.. Took to lake and notice big difference in boat performance..Worked very very well.. After 30 mins came home and inspected item.. It was broke with a huge peace of the plastic missing.. Did not fall off this time but can see how others have these fall off with no reasonable reason.. And because the boat holds this on can see why some questions those that report fall-offs. So here is the real deal. This thingn works as stated but can breakn first run.. Mabe just maybe the issue is with the torgue used to clamp this on.. If Stingray has a recommended ft lbs then they should tell us.. BUT I WOULD not WASTE MONEY ON THIS UNLESS STINGRAY GOT OFF THEIR BUTTS AND FIXED THE ISSUE.. Again great product but best go with cheaper ones.. AND this is not my first hydro..
June 7, 2012
Would recommend with caution
I bought this for my 150EFI Mercury on a nitro189 sport. Installation was a snap, though I was concerned due to the (-) reviews. I tightened the torque tab down pretty good and it started to warp the underside (evident by arrow in picture) so i stopped. Took it easy on the test drive and after a little bit, noticed it had worked back a little. So I repositioned it, tightened a little more and it was good for a few outings. Kept my eye on it and noticed it working back off again so I TORQUED it to where I thought the underside would crack but it didn't! Used it for two seasons. Boat would jump out of the water, plane at much slower speeds which was perfect for pulling tubes with children or newbies but I didn't see top end speed gain...if anything 2mph less. No big deal imo. Not sure if it was due to wear or someone stepped on it but the underside where the tab clamps on it did crack and broke a piece off...noticed it this fall as I was putting the boat up for winter. Only a 1yr warranty so I'm outta luck. It is big, sticks out a bit in the back and at first I thought it obnoxioiusly so but it worked well enough I got over it. Gonna try the stealth next spring hoping it will work as well or nearly so and wont be as obvious a platform for someone to step on. I see that has some bad reviews too! Seems they could include some filler material (ie rubber hose/matt) to help hold and prevent flexing while clamping it on.
December 28, 2011