If I get a chance I'll take mine out with my wireless BBQ thermometer Monday or Tuesday and sit in traffic for an hour when it hits 90 here in Seattle to test my cooling system.  Maybe one of our Phoenix listers could do this today since it's 118 degrees (only feels like 108!) according to weather.com.  Good grief.  But don't I think even in traffic on hot asphalt the engine compartment could  go over the sustained 248 degree threshold, that's the temp I BBQ my pork shoulders at!  But I could be wrong. . .  

It's cheaper and far better to replace your fuel lines with high quality kits from one of the list vendors, but it might be good insurance too. 

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Loren Busch
Sent: Friday, June 28, 2013 8:39 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Very Interesting Fire Suppresion System

 RE: Fire Suppression System

Just got to thinking (always dangerous).  Just how hot does the engine compartment, especially the engine lid, get when running?  Like climbing a mountain pass?  I'd hate to spend $200+ for that setup, install, and have it trip on just the engine heat without any fire.