Hello everyone,
Was wondering what the consensus is concerning which spark spark plugs to use with running a Haltech and direct fire ignition? Are guys now using RX8 plugs? Are some people using the same part number for all four plugs or are they using different plugs for leading and trailing? Are the stock NGK's still a good choice? My engine is stock and mods are Haltech Sprint, AEM-1A coils, running only the stock two injectors (but bigger) with the S5 intake, racing exhaust, no emissions. Please advise.
Thanks!

 

I was thinkin of going with the recommended stock plugs for the RX-8 (NGK 6700 & 6701) but wasn't sure if that's ok or not.

 

Anyone?

 

4 bur9 will be fine if you are boosted for your set up. The ignition style doesn't or influence dictate spark plug type. The 2 are not related. Direct fire or waste spark, the plugs dont know the difference. Fuel type, boost and power level are some considerable factors for plug choice.

 

Thanks!