What heat range spark plug for 3 cars ?

[D34dly]

I will be running 4efte on 1 bar soon..

And a friend the same..

And 1 friend has a 5EFHTE and don't know the heat range ether?

Some can help ?

 

[D34dly]

Any one?

 

[bongskag]

theres somthing on wikipedia about heat ranges : http://en.wikipedia.org/wiki/Spark_plug#Heat_range

it seems like the more power you have means that you need colder plugs.. try to contact a supplier and see what they recomend for your tune !