EGR Block off idea
01-14-2004, 04:16 PM
#61
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OK-so maybe all facts are pointing at a stock 3.8 "SHOULD KEEP THE EGR".
But an I/C would be doing the same thing then-lowering intake temp.
N/M with the cooler air combustion temps will go up-that makes sense.
But if the car can breath propperly and PCM is tuned to run such items or deletes then there shouldnt be any problems-RIGHT?
Say hypothetically you have a cam. the cam helps keep the combustion chamber cooler-so with the right cam your combustution temps will reach a certain point and stay there.
IMHO-there are a lot of ways to get past the EGR removal and still keep the combution temps lower. Cam -rockers-PCM work-and so on. And still NOT burn a valve.
BUT on a stock 3.8=KEEP THE EGR! I can see that, that makes sense now.
But an I/C would be doing the same thing then-lowering intake temp.
N/M with the cooler air combustion temps will go up-that makes sense.
But if the car can breath propperly and PCM is tuned to run such items or deletes then there shouldnt be any problems-RIGHT?
Say hypothetically you have a cam. the cam helps keep the combustion chamber cooler-so with the right cam your combustution temps will reach a certain point and stay there.
IMHO-there are a lot of ways to get past the EGR removal and still keep the combution temps lower. Cam -rockers-PCM work-and so on. And still NOT burn a valve.
BUT on a stock 3.8=KEEP THE EGR! I can see that, that makes sense now.
01-14-2004, 06:17 PM
#63
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Heys Guys this does sound good idea, I am having a EGR problem right now and I just bought a new one ($180) that I have not installed yet, But can someone tell me just what (if any) advanatges to having a EGR anyway??
01-14-2004, 08:58 PM
#66
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Originally Posted by 13secGTP
OK-so maybe all facts are pointing at a stock 3.8 "SHOULD KEEP THE EGR".
But an I/C would be doing the same thing then-lowering intake temp.
N/M with the cooler air combustion temps will go up-that makes sense.
But if the car can breath propperly and PCM is tuned to run such items or deletes then there shouldnt be any problems-RIGHT?
Say hypothetically you have a cam. the cam helps keep the combustion chamber cooler-so with the right cam your combustution temps will reach a certain point and stay there.
IMHO-there are a lot of ways to get past the EGR removal and still keep the combution temps lower. Cam -rockers-PCM work-and so on. And still NOT burn a valve.
BUT on a stock 3.8=KEEP THE EGR! I can see that, that makes sense now.
But an I/C would be doing the same thing then-lowering intake temp.
N/M with the cooler air combustion temps will go up-that makes sense.
But if the car can breath propperly and PCM is tuned to run such items or deletes then there shouldnt be any problems-RIGHT?
Say hypothetically you have a cam. the cam helps keep the combustion chamber cooler-so with the right cam your combustution temps will reach a certain point and stay there.
IMHO-there are a lot of ways to get past the EGR removal and still keep the combution temps lower. Cam -rockers-PCM work-and so on. And still NOT burn a valve.
BUT on a stock 3.8=KEEP THE EGR! I can see that, that makes sense now.
As to the intercooler, well in theory, an EGR would be redundant. This IS assuming that some work has been done too (better valves & pistons).
01-15-2004, 08:44 PM
#67
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Not much concern for the environment in this thread.
The higher combustion temperatures in your engine caused by removing the EGR cause more NOx to be produced.
NOx is a precursor for ground-level ozone, and that'* bad for your health. That'* why the government has mandated emission controls on all automobiles in this country.
http://www.in.gov/idem/air/smog/o3ed/index.html
Unfortunately, people don't give a **** about the environment or don't know any better, that'* why emissions testing is mandated for cars in areas with ground level ozone problems.
The higher combustion temperatures in your engine caused by removing the EGR cause more NOx to be produced.
NOx is a precursor for ground-level ozone, and that'* bad for your health. That'* why the government has mandated emission controls on all automobiles in this country.
http://www.in.gov/idem/air/smog/o3ed/index.html
Unfortunately, people don't give a **** about the environment or don't know any better, that'* why emissions testing is mandated for cars in areas with ground level ozone problems.
01-15-2004, 11:04 PM
#68
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It comes down to 2 things:
1. Caring for the environment
2. Caring for the health of your valvetrain
If you care about neither, ditch the EGR. If you care about either or both, keep it.
1. Caring for the environment
2. Caring for the health of your valvetrain
If you care about neither, ditch the EGR. If you care about either or both, keep it.
01-16-2004, 12:11 AM
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Hard headed hot rodder sez:
pulled the EGR off the '93 today... if it burns a valve (which it WON'T) I'll let y'all know
pulled the EGR off the '93 today... if it burns a valve (which it WON'T) I'll let y'all know
By the time my valves burn I'll be about 90 years old based on the mileage I put on. :P
My 25 year old Firebird, sans EGR and all emissions devices, only has 80 K miles on it.