Spark Plug heat range?

[Nick260890]

hi guys, i need to buy some uprated plugs, whats the heat range all about? my starlet is pretty much standard, and running standard boost (but wont be for long )

does any one know what plugs to recommend, e.g make and part no.?

cheers

 

[markostarletturbo]

Could go for these mate in Heat range 7

http://www.tm-developments.com/index.php?main_page=product_info&cPath=31_32_12&products_id=224