Thread: Death of a 500.
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Old 05-12-2000, 07:53 PM
Larry Delor's Avatar
Larry Delor Larry Delor is offline
What, Me Worry?
Join Date: Jun 1999
Location: Sarasota, Fl.
Posts: 3,028
As far as I know, the air pump injects extra air into the exhaust stream, to further aid combustion of hydrocarbons, thereby reducing emissions. I also know that this process can produce alot of heat, and I have seen many cast iron manifolds crack or warp because of this added heat. (so far only on american cars though)

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