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Hog · 02-05-2015

I thought the chains became the limiting factor over 8000rpm as they will break due to the small diameter of the sprockets, which were designed small to fit the LT5 into the C4.(in the end the cam sprockets could have been a tad larger it was found)

The secondary chain lets go, and then due to the LT5 being an interference engine, valves start smacking pistons and carnage ensues.

Hitting the rev limiter induces no ill effects. The engine simply defuels allowing revs to decrease slightly, then refueling once again. Floating the valves (where the lifter actually loses contact with the camshaft lobe) would be difficult with stock parts that are working correctly.

02-05-2015	#122
Hog Join Date: Jul 2010 Location: Woodstock, Ontario, Canada Posts: 1,271	Re: Poll: Who has ever hit the rev limiter? I thought the chains became the limiting factor over 8000rpm as they will break due to the small diameter of the sprockets, which were designed small to fit the LT5 into the C4.(in the end the cam sprockets could have been a tad larger it was found) The secondary chain lets go, and then due to the LT5 being an interference engine, valves start smacking pistons and carnage ensues. Hitting the rev limiter induces no ill effects. The engine simply defuels allowing revs to decrease slightly, then refueling once again. Floating the valves (where the lifter actually loses contact with the camshaft lobe) would be difficult with stock parts that are working correctly.