The engine ran fine through the break in and initiail power pulls. When we really started to push the thing, started getting it over 5000 rpm, we started noticing that the horsepower would fall of and we would start blowing oil out the dipstick tube. We ran leakdown tests on the engine and found the leak down to be right at 2% all the way around.
Everytime we would try to push this engine over 5000 rpm, we'd get oil all over the place. The higher we went , the worse the problem got. This thing was putting a huge amount of pressure nto the crank case, it would even blow thew oil breatheres off the valve covers.
We pulled the heads and thought the copper gaskets were leaking, re-installed them and re-ran the engine. Same problem.
It turns out what was happening was that the top rings were butting, after lots of phone calls to various people and finally even total seal, it was determined that the problem was that the top total seal ring requires a much larger end gap than a conventional ring, total seal told me that they are now recommending .0065 to .007 gap per inch of bore, the instructions we got with the rings indicated .005 per inch of bore,
This means that .021 ring end gap that we used was way too little, what we needed was more like .030 to .032 of gap.
The guy at total seal told me they had run into this same problem recently and they have since changed the recommended gaps on their spec sheet.
In the time we ran the engine , it destroyed the top rings, they sent me a new set, free you ask? no way, they just discounted the price. Of course we had to do a complete teardown of this engine and everything that that involves, re hone the cylinders, all new gaskets.
This has been a very expensive experience, but you have to do what you have to do.
The reason for this post is not to trash total seal, but to pass on information about these new rings, if you are using the new top total seal ring, make sure you gap the top ring wider than normal. We were also told to increase the 2nd ring gap to .024 to .026.
The guy at total seal said if this had just been a mild street motor of 300 or 400 horsepower, we probably would not have had the problem. Jim Burek P.A.E . ENTERPRISES