| being lighter affect the tortional rebound the crank experiences, but because our engines fire straight down the crank at 120-degree intervals we dont have a lot of rebound occuring. I've been running an underdrive pulley since this engine was built and I've been replacing bearings every 15K miles. Each time they are showing wear pretty evenly on all 6 with just a touch of copper coming through. I might actually get my hands on a damper and put it on the next bearing swap and test for another 15K to see what they look like afterwards - the wear has always been very consistent each time I've fished in a new set.... But I attribute this wear moreso to the kind of torque she produces and RPM I spin her to. I've seen so many built motors running in the 550RWHP level eat through bearings in 20-25K miles - at least, those who really run the cars hard. With all of the time I have in this rotating assembly I made it a point to swap out the bearings after the first 15K miles to check them and I've continued with that service interval since.
Enthusiasts soon understand each other. --W. Irving.
Are you an enthusiast? If you are out to describe the truth, leave elegance to the
tailor.
Albert Einstein
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