Fang Vents: Forced fresh air to your air box by Modshack

Hook the flanges together with your hose:

Bolt it all back together. I need to tidy up the hoses a bit but you get the idea!:

Results: I've noticed as it gets hotter this summer, it is more difficult to keep the IAT's down. They typically run 15-20 degrees hotter than ambient in average driving at this time of the year. With the forced air set-up I'm seeing pretty consistant 6-10 degrees over ambient for a solid 10 degree improvement. It will probably be better in cooler weather and come very close to ambient. IAT's also cool down within seconds of the car starting to move after sitting in traffic. I've always maintained, cool is good. Today on average, my car ran at 180 degrees water, 195 degrees Oil, and 92 degrees IAT's on an 86 degree day. Not to shabby. I also have an oil cooler as well as a sump cooler in place..She's a COOL cucumber...

This mod will be particularly helpful for those of you running an open element filter (Tanabe, Nismo, Stillen G2 etc) as the filter will be bathed in forced outside air. Stock airboxes will get a direct shot, and Stillen G3 guys can re-rout the feed hoses a bit to point at the filters.

BTW, I use a Scangauge for all this data reporting (more on that in my albums). Showing here, Horsepower, Long term fuel trims, Intake temps and water temps. A Very handy tool!

There is a parts list in the Fang vent album as well as more pics for those interested. Throw me a rep point if you found this helpful!

More pics of this, part numbers and sources in the Fang Vent album : Here!

That might be a little difficult with the routing clearances and plastic/metal in the way, but here are some other ideas that would work for a track setup using the same hoses and flanges and a few Shop vac parts...: These were installed on my Audi TT but the concept would be similar..

7-2-2009

Well....Close but......

Fuel is always being adjusted no matter what the temperature. This is handled downstream by the 02 sensors which are constantly making minor corrections to A/F based on Measured data from both sampling, and the MAF flow information. They don't care what the Intake temps are, they are just concerned with keeping things in line. There are Short term trims (imediate minor changes happening all the time), and long term trims, (that build up a reference map based on the overall conditions). Heat and IAT temps largely affect timing maps in most modern ECU's...They dial back timing as a protective measure.. The performance loss you experience is largely this adjustment. Fuel continues to be held at or around stochiometric (14.7:1 A/F) as long as you're in Closed loop mode (not WOT Open loop which uses pre-built Fuel maps and ignores 02 input). Here's an IAT and timing adjustment chart from an '08 Corvette. Notice how, at temps, over a mere 86 degrees, a timing retard starts being implemented...As a reference, it is not unusual to see the IAT's on the Z exceed 150 degrees when sitting in traffic. On the Vette chart, that's an average -6 to -8 degree timing pullback