Will a stock 94 Cherokee clear 31s?
You can run 31s on stock rims with no issues unless stuffing. However the rub is minimal. With stock rims you will however rub the lower control arms at a full turn of the front wheels.
How to reduce NOx emissions for smog test?
NOx Emission Reduction Strategies
- by Marc Karell and Amit Chattopadhyay.
- Fuel switching. Fuel switching is the simplest and potentially the most economical way to reduce NOx emissions.
- Flue-gas recirculation (FGR).
- Low NOx burners.
- Derating.
- Steam or water injection.
- Staged combustion.
- Fuel reburning.
How do I pass emissions with seafoam?
Sea Foam’s Take
- Add two cans of Sea Foam Motor Treatment or Sea Foam High Mileage (for cars and trucks with over 75,000 miles) to a low tank of fuel and drive normally for about 20 miles.
- Follow the fuel treatment with a sequence of two Sea Foam Spray treatments through the intake.
What causes NOx formation in a Jeep Cherokee?
Last of all, an engine that’s running hotter than normal will encourage NOX formation. A faulty thermostat or a clogged cooling system could be keeping the Jeep’s operating temperature just shy of overheating. Adding a load pushes the combustion chamber temperature to the point where NOX formation increases to an unhealthy level.
What are the NOx levels in my car?
I also installed a NOX-reducing cat. After these changes, it barely passed the 15-mph emissions test and still failed the 25-mph test for NOX. The exhaust readings at cruise are as follows: CO, .01%; HC, 12 ppm; CO2, 15.0%; NOX, 917 ppm.
How does an EGR valve lower NOx levels?
Many emissions systems rely on an EGR valve to lower combustion chamber temperatures. Adding a small amount of inert exhaust gas when the engine is under load lowers the temperature in the combustion chambers just enough to reduce the formation of NOX.
When does NOx occur in the combustion chamber?
As mentioned above NOx is created when combustion chamber temperatures reach above 2500F. By recirculating exhaust gas back into the intake, a small amount of the air/fuel mixture is replaced with inert gas, reducing combustion temperatures.