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The Evo X does the same thing. It's primarily for emissions purposes - the intent is to leave the throttle open a bit and leave ignition timing advanced to burn
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07-14-2011, 10:09 AM
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#12 (permalink) |
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A True Z Fanatic
Join Date: May 2010
Location: SLC, UT
Posts: 1,671
Drives: '08 Evo X | '10 370Z
Rep Power: 19   |
The Evo X does the same thing. It's primarily for emissions purposes - the intent is to leave the throttle open a bit and leave ignition timing advanced to burn off excess fuel after the engine has been burning a rich mixture (free-revving would cause this, same with after a WOT pull). Some theorize it has more to do with keeping the catalytic converter(s) healthy. I really have no idea... I don't spend much time thinking about improving emissions when I tune cars. lol
It's annoying, but I know it's normal on the Evo X, and probably the same on the Z.
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 '10 PW 370Z 7AT - wife's car - Project Raspberry Cheesecake '08 Evo X - built motor+trans | BB-X @ 32 psi | CH3OH | self-built+tuned - ??? WHP '01 Galant V6 - built motor | GT35R | self-built+tuned - 550+ WHP (retired) Last edited by WarmAndSCSI; 07-14-2011 at 10:12 AM. |
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