EGR valve, what good is it? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SSC's76 · 09-05-2005, 02:37 PM

Most EGR systems are so full of carbon they dont work. If you ever swaped out your intake gaskets you would have noticed a section of pure black carbon. Thats the passage that the exh gas recirculates in.

Now will it hurt removing a properly functioning EGR system? Power, no, drivability, no, as long as the timing has been adjusted properly. A functioning EGR system will however increase fuel economy durring cruise by burning the unburnt fuel in the exh. This is the one and only smog device that works and doesent hurt power. The downside is the EGR does dirty up the internals of the engine.

09-05-2005, 02:37 PM	#5
SSC's76 No No Join Date: Jun 2005 Location: Pueblo Colorado Posts: 1,781	Most EGR systems are so full of carbon they dont work. If you ever swaped out your intake gaskets you would have noticed a section of pure black carbon. Thats the passage that the exh gas recirculates in. Now will it hurt removing a properly functioning EGR system? Power, no, drivability, no, as long as the timing has been adjusted properly. A functioning EGR system will however increase fuel economy durring cruise by burning the unburnt fuel in the exh. This is the one and only smog device that works and doesent hurt power. The downside is the EGR does dirty up the internals of the engine. __________________ 1976 Custom Deluxe SWB Med FMB.3/4 Drop. Gen VI 454, Muncie HD 3 speed With Modified OE Hurst Shifter, 3.73 12 bolt, GMPP HO roller cam, Hooker headers, Performer intake with modified Q-jet, Accel distributor. Best 1/4 12.3 @108. Funnest run 19.84 @88 full 1/4 mile burn out. 1997 K1500 ext cab 5.7 stock except muffler



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