Lowering egt's

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Nov 9, 2012 | 08:39 AM

#31

parkland

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Joined: Jan 2006

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Quote:

Originally Posted by Mystic_Cobra

I've disabled it on my 96 Cobra (racecar).

Opposite from what I believed until very recently; EGR on gas engines actually helps power and mileage.

Nov 9, 2012 | 08:57 AM

#32

Mystic_Cobra

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Joined: Sep 2004

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From: Northern VA

Do you have any resources with info on this? It was my understanding that it was only for emissions and only really helped while the engine was below operating temperature. I don't know of any true racecars that use EGR systems.

Nov 10, 2012 | 12:41 AM

#33

parkland

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Joined: Jan 2006

Posts: 6,267

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Quote:

Originally Posted by Mystic_Cobra

Actually maybe it only helps mileage?
I'm not 100% sure now about the power gains, I think it just helps with mileage.

It does so by reducing pumping losses, from what I read.
The engine is able to run less vacuum because it's also inhaling exhaust.

I got a 96 caprice classic I gotta get running, someone put dual exhaust in, and moved the exhaust sensors to the new pipes, without and CAT or mufflers, so I get the engine light all the time, and crummy fuel mileage... I Frickin hate emissions regs !!!!