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Question:

What should my rpms be for 07 H180 4.3l Volvo, along with top speed?

i believe you should be around 4600-4800range and top speed is going to be about 44-45mph.

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Brian Borchik
The Winds of Cold Springs Harbor Marina
Baldwinsville, NY

Thanks. I just read the manual and it says 4200 - 4600. My lake is not that big and i was inching up to around 4300 when I had to slow it down. I guess I am in a good range. Trouble is that it seems to be running rough over 3300 rpm. Could it be my fuel filter (I have not change for two years and the fact I was just using standard gas...no higher octane stuff??

are you sure its not a vibration you may be feeling? usually if something is running rough you feel it more at lower speeds, higher speeds are vibrations like props out of wack or gimbals and ujoints vibrating everything.

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Brian Borchik
The Winds of Cold Springs Harbor Marina
Baldwinsville, NY

It could be. But I had the lower drive pulled last spring and everything check. It was fine. Since then I've put on about 10 very light hours. I know this sounds crazy but it seems the engine is just running louder than I remember in years past.