Tilted Forum Project Discussion Community - View Single Post - Getting rid of most of my emissions equipment.

Peryn · 11-03-2004, 06:27 PM

For the most part, cheating emmissions equipment doesn't really net you any gains. On modern cars, it will even hurt them. Your smog pump simlpy moves air. It doesn't pressurize anything like a blower does, so it will only rob MAYBE a 1/2 hp. While the point of EGR is to rob power, you have to consider what it does. It keeps combustion temperatures down, helping to reduce NOx, but also helping to prevent pinging. You need to take into account that getting rid of your EGR will also increase combustin temperatures. As far as the cat goes, you can go ahead and get rid of that to make the exhaust flow better, though that is kind of useless without be able to get more air into the engine. What else....umm... EVAP. That charcoal cannister is part of the emissions equipment, but takes away zero performance, and saves gas. You might want to keep it. Theres the hot air pipe for the intake, its considered emissions equipment. Helps it warm up faster and again, as long as its functionning correctly, helps you without robbing power. I suppose you could ditch the clutched fan (if it has one) for an electric one, get an extra hp or so, maybe even go so far as to ditch the power steering.

But really, given that its an 84, its power output is going to suck. Emissions equipment is the least of your worries if you want better performance.

11-03-2004, 06:27 PM	#5 (permalink)
Peryn Junkie Location: San Diego, CA.	For the most part, cheating emmissions equipment doesn't really net you any gains. On modern cars, it will even hurt them. Your smog pump simlpy moves air. It doesn't pressurize anything like a blower does, so it will only rob MAYBE a 1/2 hp. While the point of EGR is to rob power, you have to consider what it does. It keeps combustion temperatures down, helping to reduce NOx, but also helping to prevent pinging. You need to take into account that getting rid of your EGR will also increase combustin temperatures. As far as the cat goes, you can go ahead and get rid of that to make the exhaust flow better, though that is kind of useless without be able to get more air into the engine. What else....umm... EVAP. That charcoal cannister is part of the emissions equipment, but takes away zero performance, and saves gas. You might want to keep it. Theres the hot air pipe for the intake, its considered emissions equipment. Helps it warm up faster and again, as long as its functionning correctly, helps you without robbing power. I suppose you could ditch the clutched fan (if it has one) for an electric one, get an extra hp or so, maybe even go so far as to ditch the power steering. But really, given that its an 84, its power output is going to suck. Emissions equipment is the least of your worries if you want better performance. __________________ Dont cry kid, It's not your fault you suck.