You really get 18? Wow, keeping it under 60?
what is your MPG
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You really get 18? Wow, keeping it under 60?
I'm in orbit when I see double digits......
If I see 10 around town my math is jacked.......
The trick used to be that if one wanted to get better mileage than the very low teens, all one had to do is putting the truck up for sale.
Instant 15 mpg, I swear.
1996 LX450 150K TRD supercharged 10-11MPG
Yes our engine is so inefficient that the mpg gain isn't significant to notice by itself....most of the time. Plus a lot of people don't have working erg to notice a difference.
But if someone really wants to get best possible mpg then it should be left in place in good working condition. With 77lb 35s, roof rack and sliders I still get 14+ when driven easy on freeway so every little bit helps. eRG will not improve MPG if someone has a lead foot.
That's it. I'm getting a snorkel.
I hope I will get better mpg, more HP, and double the value. Who knows, maybe my wife will make better sandwiches too.
A few people will argue with you their mpg improved after EGR delete. I'm on their side by the way.
The EGR isn't designed to improve your MPG but to reduce emissions. Correct?!
Having a good functioning EGR that is 23 years old is questionable. All of parts in the EGR system are expensive. Everyone that I know that has eliminated the EGR has seen improved MPG (maybe it's nominal) and improved performance (seat of the pants).
Most importantly it gives me room to add a second battery. It is amazing how much space the EGR takes up under the hood.
Having a good functioning EGR that is 23 years old is questionable. All of parts in the EGR system are expensive. Everyone that I know that has eliminated the EGR has seen improved MPG (maybe it's nominal) and improved performance (seat of the pants).
Most importantly it gives me room to add a second battery. It is amazing how much space the EGR takes up under the hood.
Fair enough.
Although most don't know what egr system does, it's more than just for smog. All modern engines have egr system and without it 30-40-50 mpg new cars are getting simply isn't possible.
This is just my theory, so treat it as it is.
I think the EGR delete helps in better combustion since there is more fresh air going inside the cylinder. It may actually burn a little hotter too because of if, so hopefully a more complete burn, maybe slightly more power. I think that's where the better fuel economy comes from.
People have noticed a slight increase in mpg, same driving style, same route, etc. I think somewhere in the 5-10% range.
Now, If you get 10mpg, the increase in fuel economy will at best 1 mph. Not a lot of difference there.
I think the EGR delete helps in better combustion since there is more fresh air going inside the cylinder. It may actually burn a little hotter too because of if, so hopefully a more complete burn, maybe slightly more power. I think that's where the better fuel economy comes from.
People have noticed a slight increase in mpg, same driving style, same route, etc. I think somewhere in the 5-10% range.
Now, If you get 10mpg, the increase in fuel economy will at best 1 mph. Not a lot of difference there.
Agree to disagree. It isn't possible to hit those mpg numbers with the specific emissions output required, it would still be doable.
13-15 mpg before and after egr delete. 
I don't count mpg's, I just drive it, fill it, repeat...
Isn't the goal of the EGR to burn some of the exhaust gases a second time? Thus injecting hot, carbon monoxide back in to the combustion chamber instead of cool air (one of the benefits of installing a snorkel is the fresh cool air, correct?). I would think if the EGR is functioning properly then the MPG increase would be nominal, at best. If the EGR is not functioning properly then I would think the MPG increase could be more significant.
Either way, it's 23 years old. I'm not going to spend the money to replace it and I already have all of the parts to delete it so, screw the EPA.
The EGR system is a NA only system if I remember correctly. If having it was so important they would've included it everywhere else, right?! I'll roll the dice. I'll keep everything and if I don't like having all the extra space under my hood and room for a second battery then I could always reinstall it.
Either way, it's 23 years old. I'm not going to spend the money to replace it and I already have all of the parts to delete it so, screw the EPA.
The EGR system is a NA only system if I remember correctly. If having it was so important they would've included it everywhere else, right?! I'll roll the dice. I'll keep everything and if I don't like having all the extra space under my hood and room for a second battery then I could always reinstall it.
Anyone have a link to an EGR delete thread?
Would blocking the EGR be an option, instead of removing it?
Egr is only active when the engine is not under load and it leans out the fuel mixture which saves us some gas. It will close when then engine has load, the vacuum valve closes the EGR system.
EGR as far as I know serves 2 purposes:
1. Return hot gas when engine is cold to warm up the engine faster. Modern engines have very aggressive EGR system, just take a look at all the Lexus hybrid cars and the newest models.
2. It will return hot gas back to intake and lean out the engine combustion and save a little gas when there is no load. You can't use clean cool air to lean out the engine because it has oxygen which jacks up the air(oxygen)/fuel mixture and because of that gas won't detonate properly. Exchaust gas is perfect for leaning out the engine because it has very little oxygen so it's just there for volume. Your engine can run leaner without the side affect of running too lean aka incorrect detonation of air/gas mixture.
Egr has nothing to do with carbon monoxide, that's what the cat is for. Again EGR should be off when you out your foot into, very important for those who thinks EGR robs the engine power. A properly operating EGR system will not affect power at all.
EGR as far as I know serves 2 purposes:
1. Return hot gas when engine is cold to warm up the engine faster. Modern engines have very aggressive EGR system, just take a look at all the Lexus hybrid cars and the newest models.
2. It will return hot gas back to intake and lean out the engine combustion and save a little gas when there is no load. You can't use clean cool air to lean out the engine because it has oxygen which jacks up the air(oxygen)/fuel mixture and because of that gas won't detonate properly. Exchaust gas is perfect for leaning out the engine because it has very little oxygen so it's just there for volume. Your engine can run leaner without the side affect of running too lean aka incorrect detonation of air/gas mixture.
Egr has nothing to do with carbon monoxide, that's what the cat is for. Again EGR should be off when you out your foot into, very important for those who thinks EGR robs the engine power. A properly operating EGR system will not affect power at all.
https://forum.ih8mud.com/threads/40-50-60-and-80-series-fsm-for-a-hell-of-a-price.610994/
Look for the "3FE Desmog Guide" on that page with all of the FSMs. It's part of that. Pretty easy to follow. @FJ62INTX sells a EGR Block off plate. I'm guessing there are others as well. I got mine from him. He actually has a full kit that he sells. Message him if you are interested. He was great to deal with.
Yes, you can just bypass it, I believe. I can't remember for sure but I thought I read about someone bypassing it...
EGR valve is a huge problem for diesel engines (equipped with such a thing). It creates a big mess with CBU (carbon build up).
http://en.wikipedia.org/wiki/Exhaust_gas_recirculation Reducing NOx by diluting air at peak combustion temps. AND think that the timing curves are mapped for a functioning egr.
Won't the ECU be able to cope with that?