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Originally Posted by flyin ryan
check the duct while running the car, before it all comes apart, until you get too carried away. when it's warm/hot is it soft or firm, sounds dirty  , i personally believe the duct collapsing is a little bit of an urban myth  thing. i mean ya sure it's possible if the engine temp. gets way up there, 250° F or so & the paper air cleaner is plugged. with a clean/semi-clean K&N well...  |
the duct collapsing is not an urban myth. I'll testify to that as can Keith. pop the hood on your car in the sun, let it sit for an hour then come back and squeeze it. I'd be willing to bet that you will be able to almost collapse it. I can remember watching the duct get sucked closed on keith's car on the dyno in BG several years ago. The stock duct sucks. I went though 4 before I got smart and bought the coplin duct.