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Old 03-24-2013, 11:15 AM
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Quote:
Originally Posted by engineczar View Post
Consider the source Carl, remember this thread where we all learned that filing ring end gaps makes the rings egg shaped?


Excessive oil consumption (sbc)?

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Quote:
Quote:
Originally Posted by MouseFink
Never use forged "racing" pistons that use 1/16" top and second rings in engine that is driven daily. . The 1/16" rings are low tension rings to be used on low silicon forged pistons in high RPM racing engines. The 1/16" rings have poor oil control at low RPM. Always use forged pistons that use 5/64" top and second rings. Those type pistons set up at .002" - .0035" clearance and utilize oil return slots instead of return holes in the oil ring lands.

If one insist on using 1/16" low tension rings, a block plate should be used when honing the bores. The 1/16" low tension rings require perfectly round cylinder bores and the ends should not be file fitted. File fitting makes rings progressively egg shaped. Select the 1/16" low tension rings using a bore light and use only the rings from several sets that fit the bores as is. In drag racing engines using thin low tension rings, block filler such as "Hard Blok" should be considered.

Automakers today are using low tension metric rings in new cars to improve gas milage.


Quote:
The 1/16" low tension rings require perfectly round cylinder bores and the ends should not be file fitted. File fitting makes rings progressively egg shaped.
This guy is a joke for sure and does not have a clue LOL. I use alot of Mahle power pack piston and ring kits 1.5 1.5 3.0 MM file fit rings and to date no issues on the street.

I will have keep that thread on had for future use.
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