Why TTY, oil consumption and piston slap notes (in case you didnt know)
10-01-2006, 01:13 PM
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Why TTY, oil consumption and piston slap notes (in case you didnt know) TTY excerpt:
"Thinner rings exert less tensionagainst the cylinders. This reducesfriction and improves fuel economy.And on high performance racingengines, less friction means moreusable horsepower. Narrower ringsalso allow tighter tolerances andless blowby. All very good thingswhen you’re building a performanceengine. But they also require round-er, straighter cylinder bores thanever before.That’s why many late modelengines have torque-to-yield (TTY)head bolts and multi-layer steel(MLS) head gaskets. Both reducebore distortion when the heads areinstalled on the block"
Oil consumption:
http://www.idavette.net/hib/02ls6/page5.htm
"Thinner rings exert less tensionagainst the cylinders. This reducesfriction and improves fuel economy.And on high performance racingengines, less friction means moreusable horsepower. Narrower ringsalso allow tighter tolerances andless blowby. All very good thingswhen you’re building a performanceengine. But they also require round-er, straighter cylinder bores thanever before.That’s why many late modelengines have torque-to-yield (TTY)head bolts and multi-layer steel(MLS) head gaskets. Both reducebore distortion when the heads areinstalled on the block"
Oil consumption:
http://www.idavette.net/hib/02ls6/page5.htm
