Anyone running Iridium spark plugs on a supercharged motor?

Stick to the standard NGK's, Iridiums and Platinums are a waste of money when it comes to forced induction.

Iridiums & Platinums are intended to last as long as possible under normal conditions, they don't like the torment that boost brings.

Monsterbishi said:

Stick to the standard NGK's, Iridiums and Platinums are a waste of money when it comes to forced induction.

Iridiums & Platinums are intended to last as long as possible under normal conditions, they don't like the torment that boost brings.

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Iridiums work very well w/ boost. Platinums on the other hand dont.

Monsterbishi said:

Stick to the standard NGK's, Iridiums and Platinums are a waste of money when it comes to forced induction.

Iridiums & Platinums are intended to last as long as possible under normal conditions, they don't like the torment that boost brings.

Click to expand...

indeed

I would highly disagree with that comment. I have NGK TR7IX iridiums in my car right now (2 ranges colder than stock), and also tried a set of Autolites from Napa that were only a single range colder.

I used both while tuning my car (meaning I had to pull and clean the plugs a LOT) and had no ignition system other than stock. The Iridiums were not only harder to foul than the autolites in super rich conditions, but under boost they took more Boost/RPM's before the spark blew out.

The NGK Iridiums IMO are worth every penny.

-Jason