
Originally Posted by
SnakeSkinner
There are 3 plugs I would recommend
1 heat range cold
the BCPR7ES, this is a good all around plug, long life and not Expensive
Another very good choice is to go with a NGK R5671A-7 This plug is a non-resister plug so it will be less spark blow out prone then the Resistor BCPR7ES is.
2 Heat range cold
R5671A-8 , This plug is also a non resistor plug and will pull more heat from the chamber. But will foul easier because it's a 8 heat range.
But most importantly get a HKS twin power DLI. This will allow a larger plug gap, better idle, and say byby to spark blow out.
And STAY AWAY FROM ANYTHING iridium! I can not stress that enough.
My DR-750 car had the same set of BCPR7ES's in it for over 2 yrs going back to when the car had 16T's on it. I have a HKS DLI, and was running a 0.030" gap. I ran the boost 20+psi that entire time (and up to 32psi). I just started getting a little blow out a few weeks ago when running over 30psi, I pulled the plugs and thy had so many miles on them that the gap had eroded to over .036", so I went ahead and replaced them with a set of the non-resistor's.
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