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Kawasaki clarifies horsepower ratings

Supplier News

The company’s new Critical Power engine ratings better explain horsepower output for landscapers.

Brian Horn | August 30, 2011

Kawasaki Motors Engine and Power Products Division will begin rating its engines next month in accordance with SAE J2723. The change will give landscapers a more accurate horsepower rating, which will alleviate end user confusion over horsepower labeling and “usable” power.

Kawasaki powered lawn care and other maintenance equipment will produce at least 98 percent of their rated values, not the 15 percent potential variable permitted under SAE J1940. Thus, an engine advertised at 100HP, would be able to deliver as little as 85HP under SAE J1940, whereas it would have to deliver at least 98HP in accordance with the strict SAE J2723.

“We haven’t actually changed the engines, just the systems we rate them by,” said Laura Holtrop, OEM sales manager. “From that sense, (landscapers) won’t notice it on performance, but what they will notice is a closer representation of the power that they see labeled on the equipment versus what they can actually use.”

The new move to Critical Power ratings will not reflect the wide tolerance that is currently permitted by SAE J1940, which has been the generally applied industry standard.

“We do recognize that this is a significant departure from the norm but we do feel this is a great opportunity for Kawasaki to take yet another leadership position in the market and influence the market, hopefully for the better,” said Greg Knott, applications engineering and government relations manager. “Hopefully our competition will follow suit, but we don’t know that right now.”
    
Company officials said that end users of original equipment products using engines from various manufacturers have suffered from uncertainty and confusion when comparing and making purchase decisions based on claimed horsepower ratings.

“Kawasaki has, and will continue to work with OEMs during their product development to ensure that the right engine and the right performance are being applied to each application,” Knott said.

SAE J2723 rating methodology, in combination with SAE J1995 Gross Power testing procedures witnessed by global testing agency, TÜV Rheinland Group, provides an accurate assessment for real world equipment applications for the engines.  The agency verifies sample models from specific Kawasaki engine series.

For more information, click here.

 

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