[Ziggy65]

That's the displacement of the Honda GX390; and the Loncin G390FA...

https://www.loncinindustries.com/en/engine/ProductDetail.aspx?catid=8-15-16-30-51-2146779935

View attachment 235628

I should have worded it better, I meant to say that I had never seen a 389cc on the Platinum 24 SHO before, only the 369cc LCT in recent years.

 

[JJG723]

This guy is claiming his dealer contacted Ariens and the new engines are made by Rato.

 

[CCRAW]

Interesting. I’ve used it 4 times but only up to 6”.
So far, the 301 always starts in two or less pulls, idles smooth, and shoots snow wherever I want. (I’m figuring out choke position coming out of a heated garage).
Side note - poly shoes changed the game on my asphalt driveway.
Anyway, if it doesn’t want to handle the big stuff when it comes, the engine will eventually get mods or replaced. I like the machine so far.

 

[Ziggy65]

Rato engines – Engine Specs

www.engine-specs.net

 

[db130]

A few of their links need updates. For example:

Clicking on the LCT / Ariens AX engines link takes you to Service - Liquid Combustion Technology, LLC

Searching for the OP's engine model number listed in the manual (08201510) on LCT's website doesn't return any results, probably because it's not an LCT

Additionally, the parts manual for OP's snowblower 921074 suggests looking up parts.ariens.com for engine parts diagrams:

...but parts.ariens.com currently has an expired SSL certificate, so it's essentially down.

@CCRAW by any chance can you post a photo of your engine's model number?

 

[LakesNwoods]

Hate the cheap key thing.
Like the idle.
Giving 19 ft pounds of torque vs 17.2, from 369cc to 389cc

 

[tabora]

This guy is claiming his dealer contacted Ariens and the new engines are made by Rato.

Good to know! I like RATO as a brand even more than Loncin. They're both based in Chongqing. However, RATO does not list a 252cc engine?

Engines – Rato-Europe

www.rato-europe.com

通机首页

www.loncinindustries.com

 

[Auger1]

I have had 3 Compact 24's and 2 of then had blown Briggs engines so they got new Predator 212cc engines. My Deluxe 28 250cc Briggs was a complete dog on that machine so I replaced the 250 with a Predator 414cc I got used for $200. It was like I supercharged that Deluxe, and if I had to buy a new engine it would have been the 301 Predator. Those HF engines kick butt.

 

[CCRAW]

A few of their links need updates. For example:

View attachment 236270

Clicking on the LCT / Ariens AX engines link takes you to Service - Liquid Combustion Technology, LLC

Searching for the OP's engine model number listed in the manual (08201510) on LCT's website doesn't return any results, probably because it's a Loncin engine.

Additionally, the parts manual for OP's snowblower 921074 suggests looking up parts.ariens.com for engine parts diagrams:

View attachment 236271

...but parts.ariens.com currently has an expired SSL certificate, so it's essentially down.

View attachment 236273


@CCRAW by any chance can you post a photo of your engine's model number?

View attachment 236272

Here it is.

 

[LakesNwoods]

I have had 3 Compact 24's and 2 of then had blown Briggs engines so they got new Predator 212cc engines. My Deluxe 28 250cc Briggs was a complete dog on that machine so I replaced the 250 with a Predator 414cc I got used for $200. It was like I supercharged that Deluxe, and if I had to buy a new engine it would have been the 301 Predator. Those HF engines kick butt.

Project farms testing showed close to Honda performance, not as efficient, but who's counting?
At a third the price, thats a lot of gas and oil.

 

[17deluxe30]

Toro has been using Loncin engines for years on their mowers and snow blowers. I don't know that those have had any more issues than the LCT engines on Ariens machines.

 

[CCRAW]

Toro has been using Loncin engines for years on their mowers and snow blowers. I don't know that those have had any more issues than the LCT engines on Ariens machines.

Though it’s looking more like it is a RATO R300 engine per previous posts. My engine model is a R300s. All good to me. It blows snow.

 

[rozie]

Here it is.

this is interesting..... I purchased my NEW ariens deluxe 28 sho in october 2024 from a local dealer, NOT big box store. the tag on the engine shows that the 306cc engine was made in 2021. I don`t know if I should be happy or pissed that I got a new 4 year old engine on my 2024 blower?

 

[Ziggy65]

Pretty common in the snow blower retail world for dealers/stores (especially after several snow starved winters) to sell stock that hasn't sold in previous years as new machines.

What is the DOM of the machine, which is listed on the ID tag

 

[rozie]

model # 921048 serial # 222149 looking at the date after the wisconsin address it shows 2022 for the year so I guess that it was made in 2022. that would explain the 2021 year for the motor.

 

[rozie]

looking at the spec sheet for the Rato engine it shows the 301 engine getting 12hp@3600 rpm while the 306 LCT engine is 10hp@3600 rpm. how do they get 2 more hp out of a smaller displacement engine?

 

[jherbicide]

looking at the spec sheet for the Rato engine it shows the 301 engine getting 12hp@3600 rpm while the 306 LCT engine is 10hp@3600 rpm. how do they get 2 more hp out of a smaller displacement engine?

The same or similar way they used to sell the exact same engine at different HP ratings.

 

[tabora]

how do they get 2 more hp out of a smaller displacement engine?

By stating Gross HP rather than SAE Net HP. For example, the Honda GX390 was rated at 13GHP prior to 2007, and 11.7NHP since then. Many foreign engine manufacturers never made the switch.

 

[LakesNwoods]

By stating Gross HP rather than SAE Net HP. For example, the Honda GX390 was rated at 13GHP prior to 2007, and 11.7NHP since then. Many foreign engine manufacturers never made the switch.

Is that the operating/load rpm times the Ft Pound divided by 5252 formula?

 

[tabora]

Is that the operating/load rpm times the Ft Pound divided by 5252 formula?

Yes, as long as both are either Net or Gross. Of course, the quoted Max Torque and Max HP for most engines are at different RPMs. For example:

The Honda GX390 engine has the following horsepower and torque specifications:

• Net power: 11.7 horsepower (8.7 kilowatts) at 3,600 revolutions per minute (RPM)
• Net torque: 19.5 pound-feet (26.5 Newton meters) at 2,500 RPM

If you whip out your trusty calculator, you'll see that Net HP @ 2500RPM = 9.28 and Net Torque @ 3600RPM = 17.07 pound-feet.