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General Engine Management / Tuning Forum Discuss general EMS tuning concepts that do not pertain to a specfic brand or product.

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Old Feb 11, 2008, 11:19 PM   #1
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How much does mivec on the evo help with spool up of a big turbo compared to a evo 8?

How much does mivec on the evo9 help with spool in rpms of a big turbo compared to a evo 8 that has no mivec?

Last edited by chrsevx; Feb 12, 2008 at 05:11 PM.
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Old Feb 12, 2008, 11:21 AM   #2
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Drives: evo 9, 4g Eclipse

huh? the 8 does not have mivec,
but I think you mean cams right, your talking about lift not timing overlap correct?
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Old Feb 12, 2008, 05:10 PM   #3
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I didnt say the evo 8 had mivec
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Old Feb 12, 2008, 05:25 PM   #4
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Drives: evo 9, 4g Eclipse

oh I read that wrong, sorry.
well it helps spool a little bit maybe 200rpm, but the big thing about it is it provides more torque. more air during the low RPM helps "push out" the combustion exhaust, increasing VM which is a good thing.
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Old Feb 12, 2008, 10:16 PM   #5
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Like how much more than a evo 8, what do you mean?
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Old Feb 13, 2008, 11:27 AM   #6
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Drives: evo 9, 4g Eclipse

well say about 15 or so, you get more area under the curve. I guess do a search for dyno graphs so you can see.
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4g, big, cost, disable, eclipse, evo, evos, lemmon, mivec, spool, spooling, spools, technologies, timing, turbo, viii

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