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Engine vvt-i vs. vvtL-i?

Discussion in 'Powertrain' started by rainbow_star, Dec 14, 2005.

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    rainbow_star New Member

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    1MZ-FE going to have vvtl-i? And gonna have GE head??
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    ayzheninvasion Guest

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    vvt-i vs. vvtL-i?

    hi all.

    i was thinkin about doing an engine swap to 1mz-fe and i was wondering if i should wait to get the vttL-i, will it have a significant gain over the vtt-i?

    basically, vtt-i is variable timing for the cam, and the vttL-i is kind of like VTEC where high end will have its own lift/duration corect?

    thanks
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    ayzheninvasion Guest

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    yeah the one i saw was 1mz-fe vvt-i

    btw, did i get the concept of vvt-i and vvtL-i correct?
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    357Wheelgunner Guest

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    VVT-i gradually pulls harder as you rev up, Lift is like a swift kick in your ass at 6400 rpms that continues to redline. The car suddenly gets a surge of power and feels like a different motor, all of a sudden when lift engages.

    The advantage of this is tremendous power at high rpms, with great gas milage and practical power at lower rpms. I rarely rev past 4K rpms daily driving, but love hitting the onramps and flying past other imports that can't keep up.
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    xplicitcorolla99 Active Member

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    i would go with a vvtl-i swap because of the n/a hp and because not all lot of people doing this,in fact i only know 2 vvti forum member(mantis and shyguy)and this swap(2zz vvtl-i)has been done before.btw what year corolla you have?.
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    mikenapril Guest

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    can someone explain to this rookie (me) what you need to do to your engine to make it vvti
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    polo708 New Member

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    vvt-i is variable valve timing with intelligence... basically it uses the oil pressure to constantly vary the valves timing (hence the name) the 1zz-fe motor has this and it's just run on the intake side. vvtl-i found in the 2zz-ge utulizes the same thing, but at 6400rpm(?) it varies the exhaust side of it also which gives you that in your seat feeling. Same as vtec, but thers doesnt continuously vary below <i>lift</i>
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    ratsnrop New Member

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    So, does that mean that vvtl-i is better than vvt-i? If so, is it on the performance or the efficiency end?
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    polo708 New Member

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    vvtl-i is better. A stock XRS w/ vvtl-i pushes about 170hp, a stock S w/ vvt-i pushed about 130hp.

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