Egt's don't fall as quickly after foil delete.. Why?

[salajoey]

This may just be me watching my gauges like no other after a new mod. But it seems to me like my temps don't fall as quickly after I let off the petal. They don't get any higher than usual.. They just don't fall as fast.. Why?

[dieselcrawler]

foil is an insulation, underhood heat is likely heating air as it passes from intercooler to turbo... I wouldn't think it would be enough to notice, but if you're watching gauges like a hawk now, you might have just hightend your awareness more than before... however, I have to agree, since I removed the foil on my yellow truck last year, it also seems to take forever to get down to 300-350 on my EGT's before I shut it off...

[jesilvas]

I think it's just awareness. You still had one IC pipe and the whole intercooler not "foil wrapped" before.