Spark Plugs For Forced Induction

[SC400TT]

Guys, I know we need to install colder plugs in an engine with Forced Induction. I do have some questions for you ignition experts:

• What is the recommended best type of plug? I understand standard copper electrode plugs are far better and safer for turbo applications. I also understand that both platinum and Iridium tipped plugs have much more of a chance of causing pre-ignition than copper plugs.
• How many heat ranges are optimal to drop? I understand 2 heat ranges is best, yet I could only find 1 heat range lower, so that is what I elected to go with.
• Plug gaps. If I remember correctly, the stock recommended gap is .044. I also understand that in turbo applications, for example, my 1UZ TT project, the gap should be around .025.
• Any name brand better than the other? How about where to get the plugs?

Thanks in advance to the experts that are about to share their experiences...

Ryan

 

[Lextreme II]

Here is a great article about FI plugs http://lextreme.com/forums/showpost.php?p=39471&postcount=3

 

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Thanks, David...

Ryan

 

[Jake Breyck]

NGK 4050s gap is experamental, somthing in the .020s

Ive alwasys got them at advance auto parts, but if there clueless you prolly could get some at titan or enjunku considering your in orlando.

 

[Lextreme II]

NAPA has the best deal on BKR7E! NGK Part no. 6097