EGR. Whats it do?
10-18-2003, 11:14 PM
#2
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EGR= Exhaust Gas Recirculation. It lets a small amount of exhaust back into the intake tract during part throttle cruise and light/moderate acceleration to help lower combustion chamber temps and prevent detonation. A properly working EGR will actually gain you a small amount of power by letting you run more timing advance (on a mostly-stock setup.)
If you run a cam with a longer-than-stock duration and close or moderate LSA (i.e. the one in your sig,) then you don't need the EGR because valve overlap will perform the same function.
If you run a cam with a longer-than-stock duration and close or moderate LSA (i.e. the one in your sig,) then you don't need the EGR because valve overlap will perform the same function.
10-19-2003, 02:57 PM
#3
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Originally posted by TheGreatJ
EGR= Exhaust Gas Recirculation. It lets a small amount of exhaust back into the intake tract during part throttle cruise and light/moderate acceleration to help lower combustion chamber temps and prevent detonation. A properly working EGR will actually gain you a small amount of power by letting you run more timing advance (on a mostly-stock setup.)
If you run a cam with a longer-than-stock duration and close or moderate LSA (i.e. the one in your sig,) then you don't need the EGR because valve overlap will perform the same function.
EGR= Exhaust Gas Recirculation. It lets a small amount of exhaust back into the intake tract during part throttle cruise and light/moderate acceleration to help lower combustion chamber temps and prevent detonation. A properly working EGR will actually gain you a small amount of power by letting you run more timing advance (on a mostly-stock setup.)
If you run a cam with a longer-than-stock duration and close or moderate LSA (i.e. the one in your sig,) then you don't need the EGR because valve overlap will perform the same function.
. I wish I would have went with one slightly smaller.But anyway the kid has an 86 IROC with the 305 Q-jet, and he wants to put on a wiend manifold without EGR on an otherwise stock car. I told him with a car like that he should stick with an EGR manifold, but then couldnt explain why
Last edited by DarthIROC; 10-19-2003 at 09:10 PM.
10-19-2003, 06:16 PM
#4
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Location: Markham, ON
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okay couple things.....if you remove the egr and dont remove that section from the computer your car will act like the egr is functioning while its not there and can actually hurt your performance.
The other thing is that if you remove it best of luck to ya passing an e-test. I believe your NOX goes through the roof when you get rid of it.
The other thing is that if you remove it best of luck to ya passing an e-test. I believe your NOX goes through the roof when you get rid of it.
10-21-2003, 08:55 AM
#6
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Join Date: Mar 2003
Location: Markham, ON
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oh yeah a lot of places have stuff like that but in places like ontario we only have to pass a sniffer no visual. However if the smog police pull you over and notice that any of the stock emissions equipment is missing youre in for mucho fines.
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