Question about Pontiac Trans
Headers and a freer flowing exhasut just by itself won't gain you alot of power,maybe 20 horsepower.What is needed is a freer flowing intake and fuel supply along with a better ignition curve to fully take advantage of the freer flowing exhaust.If running fuel injection,you would need a performance chip for the ECU/PCM,to really take advantage of the exhaust system.If running a carburetor,the jets would beed to be increased in size slightly,and a performance curve programmed into the distributor.Think of an engine as a huge iron lung,air in,air out.When you make modifications or improvements to increase the amount of air flow overall,air IN is as important as air OUT.They both need to be adressed is what i'm saying,to take full advantage of any mods.Providing the intake,fuel and ignition are addressed along with the headers and exhaust,expect a good 50 horsepower gain overall (V 8) if not more.Higher gains will require a more radical camshaft,and some driveability will be sacrificed there.
Posted on Jul 27, 2008
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Posted on Jan 02, 2017
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