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Old 12-26-2011, 10:24 AM   #18 (permalink)
SharpByCoop
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Drives: '08 G37S - Graphite
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Originally Posted by elliotty View Post
I am planning to monitor boost via the EVC, since it has its own boost sensor. Anyone see any issues with that? I am thinking it should work fine.
That's what I thought, too. I have the EVC-S as well. And it will, but NOT with the default settings.

The instructions are written by the developers (always a bad idea, instead of the installers), translated from Japanese (the Japanese equivalent of Chinglish), which makes it head-scratchingly obtuse, and there are default settings which will could RUIN your motor, if left alone.

Everything is measured in percentages instead of boost values. Except one crucial setting: Overboost Value. It's set at a default 11.6 lbs. It will rise to this immediately, unless you tame it down. All the other settings are mute in comparison.

OK, so 11.6lbs. That ain't so outrageous.... Untill you find out it's 11.6 lbs OVER wastegate boost pressure. Which is probably 8-9 lbs on its own.

Of course the screen acronym for Overboost Value is : OPT That makes sense....

So this would spike right up to 20 lbs boost. I speak from experience.

So, BIG tip: drop that setting to 1.0 lbs, and use the offset value to raise boost from there.

Your techs can thank me later. Good luck on this. I'm watching.

Coop
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Jim Cooper - (Retired: '08 Infiniti G37 Sport • TheShopCT built • 11.13 @ 123 mph (click for vid) • GTM Stage II Twin Turbo • 5-speed A/T Level Ten built • 591whp @17 lbs boost)

Last edited by SharpByCoop; 12-26-2011 at 10:27 AM.
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