Quote:
Originally Posted by ather1232002
Can you please share your experience of this engine in terms of performance, engine heating and reliability in comparison with your previous 250cc engine?
Also, I have tried to get actual HP/Torque numbers for this engine but every website is suggesting different numbers.
Like, Aj1 says 15.5KW(20HP), a manual shown in youtube video says 16KW(21HP), few sites says 24HP, few says 27 HP. So it is very much confusing.
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Sorry for taking so long to get back to you. I had surgery and out of comission for a few weeks. In terms of heat, I haven’t had any heat problems. Reliability has been excellent thus far, however, my previous Hawk 250 engine was very reliable. I just wanted a little more power and a 6 speed tranny since I travel the highways frequently (55-65 mph) and need to be able to cruise at those speeds relatively easily for at least 30 minutes at a time.
As far as power rating/performance specs are concerned, my understanding is that a stock PR250 engine with a 2 valve head delivers @ 19 HP to the back wheel. The reason the numbers may be varying so much in the sources you’re looking at could be because there are not only 2 and 4 valve versions of the 250 version of this engine, but also 2 and 4 valve versions of the PR300. I have the PR300 with a 2 valve head, and I’m probably making @ 24HP. I could get the 4 valve head and push it to 27HP, but I really like the fuel economy the way it is right now and I don’t really need that extra power.
10-13-2024, 06:54 PM
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