Colder burning spark plugs?, where do you get them Options

[nate95]

im suppose to get colder burning plugs for my nitrous kit, i went to autozone and asked for copper plugs and they didn't have any, they also said i wouldn't find any for my car? are there any other kinds other than copper that burn colder? like what about platinum? i just got some bosch platinums instead will they work? and whats with that ceramic tip on them instead of just metal?

[nate95]

other than copper what would be a colder plug? iridium? or what?

[phattyduck]

other than copper what would be a colder plug? iridium? or what?

"Colder" or "Hotter" plugs have nothing to do with the material that they are made out of. It has to do with the ability of the electrode to dissapate heat inside the cylinder to avoid pre-ignition and hot spots on the plug itself.

"Colder" plugs can dissapate more heat away from the electrode. In non-modified cars, this can lead to fouling and poor running with build up, but in modified cars that run higher cylinder pressures than stock (nitrous, aftermarket turbos, increased boost on stock turbo engines, etc) the plugs work correctly, don't overheat and don't foul.

The stock 3s-gte should use NGK BKR6E (or BKR6ES) plugs. One step colder plugs are BKR7E. These are popular plugs in many import cars (My WRX uses the same plugs...).

For high-performance, nothing beats copper (standard) plugs. All other spark plugs are designed for longer life, not higher performance. Make sure you change your plugs every 10-15k miles if you use coppers...

Hope that helps...

-Charlie