ive got a turbo d16y7 and need advice on spark plugs

 

Because the engine is running hotter due to the turbo, you need colder plugs. I've read some information that stated for every 100 hp increase over stock hp you should go 1 step colder with the plugs. However, I don't forsee any problem(s) running 2 step colder plugs if the hp increase over stock is less than 100. With regards to NGK, the higher the number the colder the plug. Some people use NGK BKR7e-11 or BKR7es-11.

 

cool thanks man