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Hans:
http://www.motorboating.com/articleHtml.jsp?ID=1000084813
You mentioned you keep fuel data. Just wondering how you compare to this article, with the HO's. I kept data this summer using smartcraft (verified by gallons filled). I am close, but in running between 3500 and 3900, I was at 0.69 + / - everytime. The lake was dead calm one day and I did WOT and got 4640 on both engines and about 34.2 MPH. She might have done more, but I was only at WOT for a few seconds. I'm thinking things seem normal per the article, but always am wondering about the guys who say they get over 1.0 mpg on 8.1's.
I'm thinking I was heavy being on vacation, load with food, drink, grill, clothes, water tank half full, etc.
The tech then admitted that he never gave compression a second thought during his initial diagnosis as he considered any discrepency between cylinders of less than 10% acceptable, or at least unlikely to factor in as the root cause of a vibration, seemingly mechanical in noise & nature , and since all 8 cylinders were " really close" he crossed compression off as a likely cause.
Hans:
http://www.motorboating.com/articleHtml.jsp?ID=1000084813
You mentioned you keep fuel data. Just wondering how you compare to this article, with the HO's. I kept data this summer using smartcraft (verified by gallons filled). I am close, but in running between 3500 and 3900, I was at 0.69 + / - everytime. The lake was dead calm one day and I did WOT and got 4640 on both engines and about 34.2 MPH. She might have done more, but I was only at WOT for a few seconds. I'm thinking things seem normal per the article, but always am wondering about the guys who say they get over 1.0 mpg on 8.1's.
I'm thinking I was heavy being on vacation, load with food, drink, grill, clothes, water tank half full, etc.