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Any benefits in advancing idle mivec?

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Old Apr 4, 2008 | 02:15 PM
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Any benefits in advancing idle mivec?
Are there any benefits for advancing the idle in the mivec?

I have 272 cams and at 14* they idle like stock.

If there are any benefits, what are they?

TIA

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Old Apr 4, 2008 | 02:30 PM
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Advancing the inlet cam will increase overlap. This is likely to reduce idle vacuum, reduce idle torque and increase hydrocarbon emissions. I see only disadvantages.
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Old Apr 4, 2008 | 02:48 PM
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^ Spot on.
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Old Apr 4, 2008 | 04:42 PM
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agree
i also agree there are no advantages
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Old Apr 4, 2008 | 04:43 PM
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dont touch
i would say u could run in some trouble if u do this
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Old Apr 4, 2008 | 06:31 PM
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Originally Posted by jcsbanks
Advancing the inlet cam will increase overlap. This is likely to reduce idle vacuum, reduce idle torque and increase hydrocarbon emissions. I see only disadvantages.
These words are so well put that it is no longer nessesary to further contibute to the thread as I have just done

But it will also cause internal egr slowing the burn causing miss and idle hunt
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Old Apr 5, 2008 | 01:10 PM
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Thanks!

Well it is documented for future search use!

SK
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Old Apr 6, 2008 | 08:39 PM
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so for 500-1000 rpm and 20-40load you should have 0* in your MIVEC table?
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