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  "thermactor" exhaust parts..?!

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Author Topic:   "thermactor" exhaust parts..?!

Posts: 10
From:sacramento, ca. usa
Registered: May 2000

posted 05-31-2000 11:41 PM     Click Here to See the Profile for 67resto-coupe   Click Here to Email 67resto-coupe     Edit/Delete Message   Reply w/Quote
i was wondering what the heck these things do anyway. a buddy of mine says that they're essentially a smog pump. i don't see many of these on rebuilt engines, so can i guess that the parts aren't needed? i've got the 289/2V/auto and was wondering what would happen if i were to remove all of the pump, pump filter, and the accompanying hoses. would it hurt the engine or could i get any benefits from less drag on the motor, plus less weight. thanks



Senior Member

Posts: 301
Registered: Mar 2000

posted 06-01-2000 12:41 AM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote

The thermactor system was Ford's (and the other manufacturer's) attempt at reducing emissions by injecting fresh air into the combustion's hot exhaust gases and burning any unburned pollutants after the combustion had occurred. Modern electronic fuel injection has eliminated the need for this, and since you live in California and have a pre '73 vehicle, you don't have to worry about it either. So eliminating it is fine and will save you a couple hp by not having to drive the air pump. Further gains can be acheived by porting the heads and removing the thermactor bump in the exhaust ports. Hope this helps



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