[blurden]

Completing the CAPTCHA proves you are a human and gives you temporary access to the web property.

[BostX]

If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. more

[jorgen]

If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. more

[mkrogh]

There are 3 replacement spark plugs for Champion 8. The cross references are for general reference only, please check for correct specifications and measurements for your application. more

[Kybertek]

Choose brandname and start typing model number.

[Klintel]

The spark plug Cross references are for general reference only. Check for correct application and spec/measurements. Any use of this cross reference is done at the installers risk.

here

[w8ks6]

[Vezeena]

There are 20 replacement spark plugs for Champion H8. The cross references are for general reference only, please check for correct specifications and measurements for your application.

[rainerfox]

Choose brandname and start typing model number. here

[motherhumper]

The spark plug Cross references are for general reference only. Check for correct application and spec/measurements. Any use of this cross reference is done at the installers risk.

[danknug]

here

[hugolp]

There are 2 replacement spark plugs for Champion 8-COM. The cross references are for general reference only, please check for correct specifications and measurements for your application.

[J Pitt]

Choose brandname and start typing model number. here

[endian]

The spark plug Cross references are for general reference only. Check for correct application and spec/measurements. Any use of this cross reference is done at the installers risk.

[nickwit]

here

[Hooquai8]

So in general, you should stick to your manufacturer’s recommended heat range until you actually need to run a colder plug. But when would that be? There seems to be a rule of thumb that states you should go 1 range colder for every 75-100hp additional you make over stock. However, I don’t follow that rule because it all depends on your setup. I’ve seen plenty of high power cars running stock heat range with no problems. here

[jumolock1976]

Spark plugs have 2 jobs. The first is obvious, to create the spark necessary to ignite the air/fuel mixture in the cylinder. The 2nd, and less obvious job, is to pull heat from the cylinder and transfer it into the head where it can be cooled down by the cooling system.

[alanpayne143]

The term colder plug and hotter plug refers to how fast or slow the plugs transfers the heat from the tip. A colder plug transfers heat faster while a hotter plug is slower. The goal is to keep the cylinder temperature between 550*c and 800*c which is about 1020*f to 1470*f. This temperature range is cool enough to prevent knock and not melt the plug tip, but still hot enough to burn off the carbon and prevent fouling.

[nauru]

Now, if you do need to get a colder or even a hotter plug, keep in mind that there is no universal heat range system. Each plug manufacturer will have their own heat range system.

[simplesharp]

For a stock car or even a car with full bolt-ons, running a colder plug isn’t going to benefit you much if at all. In fact, you’ll probably end up with more problems because the plugs will foul and cause mis-fires. You will see people reporting smoother revs or better idle after switching plugs, but this is most likely due to just being fresh plugs with correct plug gap and/or plug design differences and not so much from the heat range. These perceived benefits will soon fade.