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VVEL (and IVT) is only on the intake cams. Our exhaust cams have no adjustability from the factory. These gears are for the exhaust cams, so they would provide some
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01-27-2012, 11:16 AM
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#1 (permalink) |
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Enthusiast Member
 
Join Date: Mar 2011
Location: Austin, TX
Posts: 279
Drives: '11 Gunmetal 370Z MT
Rep Power: 15  |
VVEL (and IVT) is only on the intake cams.
Our exhaust cams have no adjustability from the factory. These gears are for the exhaust cams, so they would provide some extra tunability that is not possible otherwise. |
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01-27-2012, 05:14 PM
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#2 (permalink) | |
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A True Z Fanatic
Join Date: Apr 2009
Location: Greer, SC
Posts: 14,954
Drives: 06 Frontier SE 6spd
Rep Power: 53   |
i agree with this^ you're talking about a good 6-8 hours of labor to make a small change in timing
Quote:
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Patrick // 06 Frontier 6spd Nismosis // Mods: Uprev Tuned @ Z1 Motorsports: 257whp & 292 ft lbs 09 Pontiac G8 GXP // M6 // Sunroof // Tint... For now 
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01-27-2012, 05:23 PM
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#3 (permalink) | |
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Enthusiast Member
Join Date: Mar 2011
Location: Austin, TX
Posts: 279
Drives: '11 Gunmetal 370Z MT
Rep Power: 15 |
Quote:
 Notice how the intake valve open and close times have a wide range, and the exhaust valve has 0 range? No clue why nissan did it this way, maybe they couldn't make it all fit in there with VVEL + exhaust phasing, maybe they are saving it so they can have more power in the next generation engine, maybe cost, who knows. |
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