# The Official Callout/Kill Thread

**URL:** <https://forums.speedlife.net/t/the-official-callout-kill-thread/244455>\
**Category:** Shift518 Automotive\
**Created:** [May 29, 2009, 12:00pm UTC](https://forums.speedlife.net/t/the-official-callout-kill-thread/244455 "2009-05-29T12:00:38Z")\
**Posts on this page:** 1\
**Showing post:** 860

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**Author:** ![arodracing](https://avatars.discourse-cdn.com/v4/letter/a/7cd45c/32.png) [@arodracing](https://forums.speedlife.net/u/arodracing)\
**Post date:** [September 28, 2009, 5:14am UTC](https://forums.speedlife.net/t/the-official-callout-kill-thread/244455/860 "2009-09-28T05:14:07Z")

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> [@SOLD](https://forums.speedlife.net/t/sold/23435/2):
>
> What’s the atvantage of eliminating the vtec selenoid

The cam come’s with one lobe only, so there no need for the selenoid. The roller system is alot more efficient , lightweight and less stress on the valvetrain.

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