OK. Don't use PVC for an DIY CAI? I know some of the guys here have made Icebox style CAI's from PVC pipe, but I've been told that if it gets hot, it'll start to melt and release a gas that's harmful for the engine.
I was told to replace the PVC with rolled aluminum tubing.
So which is better? PVC seems easier to work with and is more resiliant, but the aluminum seems safer, from what I've been told.
I haven't had any problems so far...
Any help here?


[Modified by chairmankaga, 10:42 PM 9/27/2001]

 

Screw the PVC just cut the intake silencer off and attach the tube to the bottom of the airbox with screws.

 

It will never get hot...maybe warm, but not hot.

 

This was discussed on the Type-R forum ( https://honda-tech.com/zerothread?id=53429&page=1 ) when I originally posted the information on the DIY Icebox CAI.

Board member 99r supplied the following information:
"The chlorine in the plastic will burn in the form of hydrogen chloride gas which is corrosive. Self ignition temp for PVC is about 507 deg celcius, but this varies depending on who makes the PVC and the quality. Hydrogen Chloride gas begins to form anywhere between 230 and 280 degrees celcius for PURE PVC. Make adjustments for additives."

Based on this information, there should be no need to be concerned. Especially since the intake tubing is not relatively close to any heat source.

 

Thanks guy. It was your design I wa splanning on using, anyway!
Check this one out, too... http://www.teamdelsol.com/howto/coldair/diycoldair.htm
More expensive, but it looks nice.