# School me on MZ engines...

**URL:** <https://forums.speedlife.net/t/school-me-on-mz-engines/64575>\
**Category:** NYSpeed Automotive\
**Created:** [March 16, 2009, 9:12am UTC](https://forums.speedlife.net/t/school-me-on-mz-engines/64575 "2009-03-16T09:12:48Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![LUKE\_L](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/luke_l/32/7462_2.png) [@LUKE\_L](https://forums.speedlife.net/u/LUKE_L)\
**Post date:** [March 16, 2009, 9:12am UTC](https://forums.speedlife.net/t/school-me-on-mz-engines/64575/1 "2009-03-16T09:12:48Z")

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I am researching to find out as much info as I can on the 1MZ-FE. My question how reliable **was** the VVT-i setup on the 1MZ for the few years that it was put out?

The HP increased from around 170-190 to 210 with the VVT but is this 2-stage hydraulic system really that realible? I have my doubts that as the motor see more miles that this system breaks down. I have no proof for or against this theory so I was hoping someone could shed some light on this question. Toyota pulled the VVT-i due to emissions issues in the Euro market around 05-06. Other than that I really don’t see any other issues with this motor system.

I am weigh my options for a 190 HP 1MZ-FE or a 210 HP 1MZ-FE with the VVT-i. The 20 HP is not the deciding factor. Dependablilty is the deciding factor.

Thoughts?