Sx 195 top speed

[Smitty244]

I have a 2021 sx195. All the test videos I saw on YouTube claimed it is a 52mph boat, the best I’ve seen is 48.8. Is this the normal top end speed?

 

[FSH 210 Sport]

I have a 2021 sx195. All the test videos I saw on YouTube claimed it is a 52mph boat, the best I’ve seen is 48.8. Is this the normal top end speed?

Top speed depends on a few things, amount of people and cargo in the boat, fuel load, water conditions, altitude and temperature.

 

[Smitty244]

I understand that. This was on calm water with two adults and a full tank of gas. I figured in that case if it was rated for 52!it should have done it but maybe 49 is all she wrote.

 

[FSH 210 Sport]

I understand that. This was on calm water with two adults and a full tank of gas. I figured in that case if it was rated for 52!it should have done it but maybe 49 is all she wrote.

And what was the altitude and temperature?

 

[Smitty244]

I live in Ohio so I’m a flat lander. Pretty much no altitude and about 65 degrees

 

[Babin Farms]

I understand that. This was on calm water with two adults and a full tank of gas. I figured in that case if it was rated for 52!it should have done it but maybe 49 is all she wrote.

My guess is they test with one small person in the boat(160lbs) and just enough fuel to make a speed run.

 

[FSH 210 Sport]

I live in Ohio so I’m a flat lander. Pretty much no altitude and about 65 degrees

Well, you are not at sea level and that is the elevation at which engines are rated as far as horsepower / performance. 65° is nice and cool, but I forgot about humidity which also plays a big role in air density.

The rule of thumb for hp loss is 3% per 1000’ of elevation gain on normally aspirated engines, about half that for supercharged engines. I boat at 5000’ which is a 15% power loss, toss in a warm summer day and that raises the power loss to as high as 27%. My engines are rated for 8000 rpm, but I only see 6800 on those warm summer days, I’m in the process of getting a set of high altitude impellers to raise the rpm’s up closer to rated rpm.

What is the rated rpm of your engines, and did your reach those rpm’s ?

 

[anmut]

Full fuel always gets me. I've seen 49.5mph in my 212S, but the gas tank was at 1/3. Because I never like to boat without a full fuel cell, the highest I'll see on the regular is 46-48.

 

[2kwik4u]

Pretty sure "boattest.com" gets ringer boats as demo models.

49 is pretty close to spot on. Check the top revs against the published redline. I'm not sure where the SVHO engine rev limiter is. You want to be near it, but not over it. My 190 is 7,700 RPM, and I can get to 7,600-7,650 in good conditions. Jet pumps are non-linear, so a few extra revs could mean a few extra MPH.

You can also look at doing a few simple/inexpensive mods to gain a few revs and some pump effeciency. Seal the intake tunnel for the pump. This on the bottom side of the hull. Takes 20-30 minutes and a tube of marine adhesive. Do a ribbon delete (remove the spark arrestor in the throttle body). This usually gets you a couple hundred revs, doesn't cost anything and takes an hour or so to dive in there and get it out.

Finally, move some weight around. The 19ft boats are super sensitive to weight placement. Get as much weight out of the bow as you can reasonably do. 2 medium adults in the bow will drop my top speed over 4mph with no other changes. No trim on the jet pump means hull attitude in the water is only adjusted with loading.

I honestly think 49mph is really close to performing properly on that boat.

 

[Smitty244]

Yeah it sounds and feels right but of course I was hoping for more with all the hype of the svho lol

 

[2kwik4u]

Yeah it sounds and feels right but of course I was hoping for more with all the hype of the svho lol

49 consistently on the water is nothing to sneeze at IMO.

We cruise around 30-35mph in our 190, and I kinda wish I had a little bit more oomph from time to time. Especially when around buddies tractor like tri-toon. Thing runs 35mph WOT and he doesn't know the throttle will live at any other speed. It runs that same speed through turns, over waves, and with enough people on board to question the legal capacity of the thing......35mph......super consistent, slow, but consistent. I might run 42mph, but that's WOT on a good day. Normally I don't like to beat on the engine that way, and the family doesn't like that speed either, so we end up in the 30-35 range, losing ground at every turn/wake/courseadjustment/etc when heading out somewhere togethor. Just a touch more speed without the frantic level of WOT would be great for us.

If I could cruise as a consistent 40mph instead of a consistent 30mph that would be great. I would say 49 WOT with a 40mph cruise is probably on par with all but the "go fast" boats on our lake. As an all around boat, your 195 is doing great.

 

[gallobg]

The best I've ever done in my 2019 AR195 is 50.4 on GPS. As others have said these boats are super sensitive to weight distribution, loading, water chop, wind, etc. The best I can consistently count on depending on all of the variables is around 46-47.

If you wet slip in a lake with lots of algae, then the drag from the scum buildup on the hull will eventually take down your top speed pretty badly. I think the worst I ever had was 43 towards the end of the season when it sat for way too long without cleaning, I think 6-8 weeks. After I pulled and cleaned the hull, it was back to normal instantly.

Lastly, remember that 2019+ the hull size was increased and the boat got a little heavier. The 2018 and earlier AR's were a little faster than the current ones. But I like the new interior, so a few mph here and there doesn't matter to me. I almost never run WOT except for a few times a season for fun.

 

[Adrian @ JB Solutions]

Also if the bimini is up, that will slow you down.

 

[Crob83]

Yeah it sounds and feels right but of course I was hoping for more with all the hype of the svho lol

I know the newer hulls are a tad slower. I can get up to 52 with 4-5 people in the boat in my '18

 

[Sean R]

Full fuel always gets me. I've seen 49.5mph in my 212S, but the gas tank was at 1/3. Because I never like to boat without a full fuel cell, the highest I'll see on the regular is 46-48.

I break 50 all the time, but I can't have anyone in the bow. Did 53 once by myself, half tank.