Mario_Marques -
I use an HAI (hot-air-intake) :
Here is where I got the idea :
Modified air intake for hot air added 7.2% to mpg - SaturnFans Forums
Quote:
That's on an increase in IAT from 37 to 90 degrees, tested on same 25 mi round trip all highway, with cruise set at 2100 rpm (60 mph) both ways, on same day with and without intake mod. Tests done with OBD II scangage.
I insulated the box and tubing today and will see if it increases the IAT and mpg further. With the standard intake I got 40.4 mpg, and with the hot air intake it went up to 42.3. I'll post again if insulating the box improves it further.
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I *don't* claim a 7.2% increase in MPG because the scangauge MPG algorithm is being effected by the IAT increase. However, for some (many? most?) drivetrains I do think it helps.
I won't do the exhaust wrap because of what Frank says.
CarloSW2