Variable valve geometry

". ." (xllx) 09/15/2019 at 14:47 • Filed to: None

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VincentMalamute-Kim > . . 09/15/2019 at 14:53

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Intake visiting the exhaust to see if it’s greener on the other side.

7:07 > VincentMalamute-Kim 09/15/2019 at 15:04

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It’s much fartier on the exhaust side. Trust me.  

SBA Thanks You For All The Fish > . . 09/15/2019 at 16:13

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Ahh, yeah, the “modified Miller cycle”-- extended Intake Open side for better breathing.  

JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t > . . 09/15/2019 at 16:13

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That is genuinely impressive. I no real i nsight as to how tha t could happen.

. . > SBA Thanks You For All The Fish 09/15/2019 at 16:14

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I’d say that’s taking the Miller cycle to the very extreme.

SBA Thanks You For All The Fish > . . 09/15/2019 at 16:16

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BTW, was a piston somehow involved in this transaction?  I’m assuming the earth’s magnetic fields weren’t strong enough to incite that intake valve stem to revolt into the exhaust port...

. . > SBA Thanks You For All The Fish 09/15/2019 at 16:18

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I’d say there are 2 possibilities:

1. The valve suddenly developed an irresistible urge to do some extreme yoga

or

2. A piston was indeed involved.

VincentMalamute-Kim > 7:07 09/15/2019 at 16:37

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You have a strange fetish.  But that’s OK.

MM54 > JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t 09/15/2019 at 16:59

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Keeper fails, valve drops but not far enough to be the whole way out of the guide. Piston hits it, breaks the head off the stem of the valve, bends valve stem over into intake port. Bizarre but possible.

TheTurbochargedSquirrel > . . 09/15/2019 at 17:04

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The piston had reach and the valve now has flexibility.