Beating emissions test
11-14-2005, 04:45 PM
#11
4th Gear Member
Join Date: Sep 2005
Location: AR
Posts: 1,925
RE: Beating emissions test
ORIGINAL: 91stang
i'm just going by what i heard... if you're desperate it's worth a try i guess.
i didn't say that i'm sure it'll work just throwing it out there
i'm just going by what i heard... if you're desperate it's worth a try i guess.
i didn't say that i'm sure it'll work just throwing it out there
11-14-2005, 05:03 PM
#12
4th Gear Member
Join Date: Mar 2005
Location:
Posts: 1,860
RE: Beating emissions test
ORIGINAL: Dan04COBRA
Holy huge signature batman! D oyou think you can make it smaller man?
Holy huge signature batman! D oyou think you can make it smaller man?
11-14-2005, 08:04 PM
#14
Super Moderator
Join Date: Jul 2003
Location:
Posts: 14,917
RE: Beating emissions test
ORIGINAL: 91stang
thius was the only way i could figure out to get them on here. i'll just no put them up there
ORIGINAL: Dan04COBRA
Holy huge signature batman! D oyou think you can make it smaller man?
Holy huge signature batman! D oyou think you can make it smaller man?
Thanks
11-14-2005, 08:31 PM
#16
I ♥ Acer
Join Date: Nov 2005
Posts: 48
RE: Beating emissions test
There is some stuff you can do to pass the test:
1) Make sure the ignition system is in good working condition. Do a tune up. Check and replace if needed PCV, EGR, fuel filter, air filter. Get rid of your K&N, and stick in paper filter. Oil from the reusable filters can drive up the emissions.
2) Make sure your engine is equipped with a working catalytic converters. HiFlow type sux. You want two inline per pipe, as per factory specs. So this means a down pipe swap.
3) Retune your ECU, 14.7:1 is the ideal (stoichiometric) AFR for the gasoline. Both, running rich and running lean will bump up the emissions.
4) As long as you're tuning, retard your timing by 5 to 10 BTDC. The decreased thermal efficiency of the engine will create hotter exhaust gasses, which in turn prolongs the burn and also helps the catalytic converters to operate at peak efficiency.
5) Increase idle speed. 950 rpm sounds just about right for our engines.
6) Increase the ON temp for the electric fan to 200 to 210 degrees.
7) Add alcohol (this is also available as gasoline anti-freeze) to your fuel tank. Start by putting twice the recommended amount for the anti-freeze. Alcohol introduces additional oxygen into the combustion process, ensuring a complete burn.
Gary
1) Make sure the ignition system is in good working condition. Do a tune up. Check and replace if needed PCV, EGR, fuel filter, air filter. Get rid of your K&N, and stick in paper filter. Oil from the reusable filters can drive up the emissions.
2) Make sure your engine is equipped with a working catalytic converters. HiFlow type sux. You want two inline per pipe, as per factory specs. So this means a down pipe swap.
3) Retune your ECU, 14.7:1 is the ideal (stoichiometric) AFR for the gasoline. Both, running rich and running lean will bump up the emissions.
4) As long as you're tuning, retard your timing by 5 to 10 BTDC. The decreased thermal efficiency of the engine will create hotter exhaust gasses, which in turn prolongs the burn and also helps the catalytic converters to operate at peak efficiency.
5) Increase idle speed. 950 rpm sounds just about right for our engines.
6) Increase the ON temp for the electric fan to 200 to 210 degrees.
7) Add alcohol (this is also available as gasoline anti-freeze) to your fuel tank. Start by putting twice the recommended amount for the anti-freeze. Alcohol introduces additional oxygen into the combustion process, ensuring a complete burn.
Gary
11-14-2005, 08:35 PM
#17
I ♥ Acer
Join Date: Nov 2005
Posts: 48
RE: Beating emissions test
ORIGINAL: Tim37
won't backing the timing down making it fire closter to tdc make it burn less fuel since it is firing later in the rotation?
won't backing the timing down making it fire closter to tdc make it burn less fuel since it is firing later in the rotation?
No. Retarding timing creates hotter exhaust gasses due to decreased thermal efficiency of the engine, prolonging the burn and helping the cats operate in their peak efficiency.
Gary
11-14-2005, 08:41 PM
#18
I ♥ Acer
Join Date: Nov 2005
Posts: 48
RE: Beating emissions test
ORIGINAL: Tim37
sounds kinda strange to me. i don't have to mess with inspecitions here so i haven't ever delt with any of that.
sounds kinda strange to me. i don't have to mess with inspecitions here so i haven't ever delt with any of that.
Combustion of air and fuel does not end inside the cumbustion chamber. Catalytic converters suppose to burn the unburned. If you have no cats, you often get a flame.
Gary
11-14-2005, 08:49 PM
#19
4th Gear Member
Join Date: Dec 2004
Location:
Posts: 1,447
RE: Beating emissions test
ORIGINAL: garygreen211
There is some stuff you can do to pass the test:
1) Make sure the ignition system is in good working condition. Do a tune up. Check and replace if needed PCV, EGR, fuel filter, air filter. Get rid of your K&N, and stick in paper filter. Oil from the reusable filters can drive up the emissions.
2) Make sure your engine is equipped with a working catalytic converters. HiFlow type sux. You want two inline per pipe, as per factory specs. So this means a down pipe swap.
3) Retune your ECU, 14.7:1 is the ideal (stoichiometric) AFR for the gasoline. Both, running rich and running lean will bump up the emissions.
4) As long as you're tuning, retard your timing by 5 to 10 BTDC. The decreased thermal efficiency of the engine will create hotter exhaust gasses, which in turn prolongs the burn and also helps the catalytic converters to operate at peak efficiency.
5) Increase idle speed. 950 rpm sounds just about right for our engines.
6) Increase the ON temp for the electric fan to 200 to 210 degrees.
7) Add alcohol (this is also available as gasoline anti-freeze) to your fuel tank. Start by putting twice the recommended amount for the anti-freeze. Alcohol introduces additional oxygen into the combustion process, ensuring a complete burn.
Gary
There is some stuff you can do to pass the test:
1) Make sure the ignition system is in good working condition. Do a tune up. Check and replace if needed PCV, EGR, fuel filter, air filter. Get rid of your K&N, and stick in paper filter. Oil from the reusable filters can drive up the emissions.
2) Make sure your engine is equipped with a working catalytic converters. HiFlow type sux. You want two inline per pipe, as per factory specs. So this means a down pipe swap.
3) Retune your ECU, 14.7:1 is the ideal (stoichiometric) AFR for the gasoline. Both, running rich and running lean will bump up the emissions.
4) As long as you're tuning, retard your timing by 5 to 10 BTDC. The decreased thermal efficiency of the engine will create hotter exhaust gasses, which in turn prolongs the burn and also helps the catalytic converters to operate at peak efficiency.
5) Increase idle speed. 950 rpm sounds just about right for our engines.
6) Increase the ON temp for the electric fan to 200 to 210 degrees.
7) Add alcohol (this is also available as gasoline anti-freeze) to your fuel tank. Start by putting twice the recommended amount for the anti-freeze. Alcohol introduces additional oxygen into the combustion process, ensuring a complete burn.
Gary
11-14-2005, 08:54 PM
#20
4th Gear Member
Join Date: Sep 2005
Location: AR
Posts: 1,925
RE: Beating emissions test
ORIGINAL: garygreen211
Combustion of air and fuel does not end inside the cumbustion chamber. Catalytic converters suppose to burn the unburned. If you have no cats, you often get a flame.
Gary
ORIGINAL: Tim37
sounds kinda strange to me. i don't have to mess with inspecitions here so i haven't ever delt with any of that.
sounds kinda strange to me. i don't have to mess with inspecitions here so i haven't ever delt with any of that.
Combustion of air and fuel does not end inside the cumbustion chamber. Catalytic converters suppose to burn the unburned. If you have no cats, you often get a flame.
Gary