Burning Spark Plugs
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Joined: Feb 2009
Posts: 11,732
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From: Leesville, Louisiana
Vehicle: 2001 Hyundai Tiburon
<div class='quotetop'>QUOTE (2UNIQ @ Apr 7 2008, 08:32 PM) <{POST_SNAPBACK}></div><div class='quotemain'>Any colder plug will foul out quickly.
If their lasting you at 10000klm thats fine and plus their cheap to buy at about $2 a plug for the NGK BKR7E</div>
NGK IX plugs run average $10 per plug. They're supposed to last 100,000 miles
<div class='quotetop'>QUOTE (SOCKS @ Apr 7 2008, 11:28 PM) <{POST_SNAPBACK}></div><div class='quotemain'>12$ per plug. what the hell are you buying..
your gap is off by .004 and your concerned after 10,000 miles.. you know thats only about the width of a human hair, right?
.004 isnt going to make your car run much different. prob not even noticable.
you should tune your car instead of just the slapped on nitrous. your probably running lean when you go on the ricer juice.</div>
The system is tuned. It's tuned in 2 ways. 1. My nitrous system automatically adjusts fuel based on a ratio of nitrous to fuel pressure. 2. The metering jets regulate the ammount of nitrous and fuel into the system.
The stock tuning takes care of everything. The ECU is unaware it is burning nitrous. The Nitrous/fuel mixture is regulated and passed into the combustion chamber in a way that it adds power without changing A/F ratio. I can look at my narrow band o2 sensors and see that Bank1Sensor1 at WOT acts the same with nitrous as without nitrous. It's erratic because it's a narrowband, but still burning about stoichomeric because the sensor is switching.
Also, after burning nitrous and then stopping the car to read the plugs, they look normal. No pitting, blackening, charing, buildup, greying, or anything. The spark plugs tell all as far as a tune with nitrous.
<div class='quotetop'>QUOTE (Ericy321 @ Apr 7 2008, 11:40 PM) <{POST_SNAPBACK}></div><div class='quotemain'>Probably. I think hes still on the stock pump to. Couldnt help, even if it is 55hp</div>
Fuel pressure is 38PSI while shooting nitrous. That's all that's important. You wouldn't need a fuel pump upgrade for 160whp turbo, you don't need it for 160whp with nitrous. I'm guestimating those numbers
The power still comes from the fuel. Nitrous Oxide just adds nitrogen to keep temps down and 33% more oxygen then standard air to burn more fuel.
Even still, I havn't used enough nitrous oxide to burn a plug, only a couple of tanks for 5-10 second bursts. These plugs are supposed to last 100,000 miles.
Fouled plugs i'd expect from short trips. Just pull the suckers out and clean them.. But a widened gap should not occour within 10,000 miles. Do you think using a few tanks of nitrous oxide would widen the gap from the low range of the Tiburon's spark gap tollerance to outside of the Tiburon's spark gap tollerance?
If their lasting you at 10000klm thats fine and plus their cheap to buy at about $2 a plug for the NGK BKR7E</div>
NGK IX plugs run average $10 per plug. They're supposed to last 100,000 miles
<div class='quotetop'>QUOTE (SOCKS @ Apr 7 2008, 11:28 PM) <{POST_SNAPBACK}></div><div class='quotemain'>12$ per plug. what the hell are you buying..
your gap is off by .004 and your concerned after 10,000 miles.. you know thats only about the width of a human hair, right?
.004 isnt going to make your car run much different. prob not even noticable.
you should tune your car instead of just the slapped on nitrous. your probably running lean when you go on the ricer juice.</div>
The system is tuned. It's tuned in 2 ways. 1. My nitrous system automatically adjusts fuel based on a ratio of nitrous to fuel pressure. 2. The metering jets regulate the ammount of nitrous and fuel into the system.
The stock tuning takes care of everything. The ECU is unaware it is burning nitrous. The Nitrous/fuel mixture is regulated and passed into the combustion chamber in a way that it adds power without changing A/F ratio. I can look at my narrow band o2 sensors and see that Bank1Sensor1 at WOT acts the same with nitrous as without nitrous. It's erratic because it's a narrowband, but still burning about stoichomeric because the sensor is switching.
Also, after burning nitrous and then stopping the car to read the plugs, they look normal. No pitting, blackening, charing, buildup, greying, or anything. The spark plugs tell all as far as a tune with nitrous.
<div class='quotetop'>QUOTE (Ericy321 @ Apr 7 2008, 11:40 PM) <{POST_SNAPBACK}></div><div class='quotemain'>Probably. I think hes still on the stock pump to. Couldnt help, even if it is 55hp</div>
Fuel pressure is 38PSI while shooting nitrous. That's all that's important. You wouldn't need a fuel pump upgrade for 160whp turbo, you don't need it for 160whp with nitrous. I'm guestimating those numbers
The power still comes from the fuel. Nitrous Oxide just adds nitrogen to keep temps down and 33% more oxygen then standard air to burn more fuel.
Even still, I havn't used enough nitrous oxide to burn a plug, only a couple of tanks for 5-10 second bursts. These plugs are supposed to last 100,000 miles.
Fouled plugs i'd expect from short trips. Just pull the suckers out and clean them.. But a widened gap should not occour within 10,000 miles. Do you think using a few tanks of nitrous oxide would widen the gap from the low range of the Tiburon's spark gap tollerance to outside of the Tiburon's spark gap tollerance?