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Now that temperatures seem to be dropping(in the morning at least) I have been thinking about a warm air intake. I understand the warm air will keep temperatures warmer BUT

What are the disadvantages to a warm air intake?

In my car the WAI actually reduces engine temp. It tells the ecu to retard the timing because the air is so hot, which in turn causes the engine to run cooler. Less power, more fe.

Different engines will react differently to different intake air temperatures. It sounds like you got yours too hot for your engine Maxx. Warm air doesn't have to be hot air to work. You'll have to try different temperatures and see what your engine likes.

Really, the only disadvantage to a tested and tried warm air intake is a slight loss in peak horsepower. I'm sure most of us here would give that up for any increase in mileage.

120 degrees is too hot for the engine? Yeah, I know, I'm actually in the process of reworking it, since I took out the radiator block a few weeks ago and my WAI became slightly dislodged (showing intake air a few degrees above amient) and I saw the same if not a slight increase.

Anyway, I'm pushing 40% above new epa combined on my commute (34 up from 24). Which, now that I put it that way, I'm doing pretty good.

I am also wondering if the cold(air) in the winter will hurt more with the warm air intake versus the stock intake. Any experience with this?

The warm air intake will help you in the colder air. It lowers the density back down to something closer to summer air which of course also reduces the fuel injected each cycle because the air to fuel ratio is fixed.

Exactly what Sean said! 110 to 120 degree IAT in the winter with a grill block can get you back to near summer mpg.

The warm air intake will help you in the colder air. It lowers the density back down to something closer to summer air which of course also reduces the fuel injected each cycle because the air to fuel ratio is fixed.

Here is a link of what I am thinking of doing for the FIT:

http://www.fitfreak.net/forums/fit-jdm-tuning-engine-modifications-swaps/24533-official-ssr-intake-diy-thread-sid-short-ram-intake.html?highlight=short+intake

A couple of pictures:

http://farm4.static.flickr.com/3229/2449667184_ac37889640_b.jpg

http://farm3.static.flickr.com/2348/2449663456_8c501ce789_b.jpg

Just don't vent the crankcase to atmosphere like he did.

Just don't vent the crankcase to atmosphere like he did.

Why?

That's terrible for the environment.

I see, I thought there was something else.

Well, I found what I might get on egay for about $47.
Not a bad price since it will be $10 cheaper than piecing it together at Autozone.