Has any one done and EGR block-off/delete on their F150's? I have a 4.2 and me a friend were talking about doing it to my father's Common Rail 5.9 since we had done his LBZ Duramax and his friends 6.7 Cummins. Wondering if you could see the same types of benefits out of it that you see on a diesel.

 

The reason it's a good mod on diesels is they have alot of soot in the exhaust that they put through the egr valve and it goes bad and/or needs serviced. Not a lot of benefit deleting it in a gas Job. But not really sure. We have no laws or any that are enforced when it comes to emission's! Lol so when I got my motor built I'm sure the builder would have said something about it if it was worth doing.

 

It would throw codes for egr no flow or low flow. Not a good idea with computer controlled engines.

 

i blocked mine off,well i put a plate in it with about a 1/2 hole....does not throw any codes and i have more power,better gas miliage too...only drawback for me is it seems to want to stall when i first crank but after i restart it it idles a little higher as it should...hope this helps

 

The EGR in my Lincoln TC has been blocked off for quite a while now. I'm just too lazy to pull the intake goose-neck and clean the EGR passages. The ECU defaults to a strategy that ignores EGR and causes no operating problems; however, fuel mileage is down slightly because EGR, when properly implemented in a throttled engine, does increase engine efficiency.
The EGR factors that improve efficiency are these:
(1) Decreased combustion temperature reduces the rate of convective heat loss to the water jacket....more heat to push down on the piston.
(2) Decreased combustion luminance reduces the rate of radiant heat loss to the water jacket....more heat to push down on the piston.
(3) Increased throttle angle necessary to compensate for the inert gas flow increases intake manifold pressure and reduces pumping losses.

EGR in a diesel just screws things up.

And now you know.