spark plugs

hello all
i want to ask about the heat range for the spark plugs .
what is the difference between as example
sk20r11
sk24r11
what is the best heat range if i want to run more boost ?
more boost more need high heat range plugs ?
 

Jay

Admin
I'm more used to the NGK heat ranges :

Stock = 6
Modded = 7
Heavily modded = 8

You can compare them with the chart in this link mate:

http://www.briskracing.com/heat-range

It would look like 24 would be a bit overkill unless you are pushing large boost levels.

Hope that helps,

Jay
 
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