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About the WAI:
I tried removing the intake snorkel and drove with varying levels of grill block, resulting in higher intake temps.
Removing the snorkel has little effect without grill block, but once the radiator heats up the intake air it really takes off. Like 15 miles of nothing, then poof.
I keep it on nowadays and just partly block the grill; that seems to heat up earlier and more gradual, less prone to overheating except in traffic jams with A/C on.
Apparently there is no FE benefit from taking it above 30°C (86°F); beyond 50°C (122°F) efficiency even drops. I bet it troubles the EGR function.
As grill blocking raises the under hood temperature it may cook the 12V battery - a 2nd gen weak spot anyway. I have a gauge setting monitoring battery voltage...
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
  lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.
Last edited by RedDevil; 11-23-2016 at 11:21 AM..
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