My spark plugs are two years old now ( installed same time as turbo kit ) some Im going to be changing them as well as adding the HKS DLI II ignition system, Was wondering which plugs i should go with ( NGK, Denso, or HKS ) Probally just going to order them online.

Thanks.

 

If you will be playing with gap and fine tuning to take advantage of the DLI I'd do some platinum plugs-easier for gapping. If not, Id run NGK or Denso Iridiums and pop em in.

 

This is all you will need. http://www.forgedperformance.com/store/home.php?cat=275

 

+1...I'm about to change again as its been about 15k since the last time. I'm going to use these again as they were great for the last 15k.

 

you really feel the Iridium > plain old NGK Copper?

 

Just ordered from you sharif, thanks!

 

That's it, that's what i run..the iridum "6's".

 

OT here.... Sharif, what's your opinion on the HKS DLI. I know alberto likes the unit, I have been thinking of getting it, so that I can run full stock gap and avoid misfires and possibly gain a little power up top. Your opinion?

 

On HKS plugs I have seen, you peel the sticker off and it says 'Denso' underneath.
Pretty sure they will be Denso's.

 

Thanx sharif I was just about to ask whats recom.

 

I've been using the NGK Iridium 1-steps since the turbo install with no complaints.

 

Im going to get the DLI Gurgen, we all know what happens when I try to gap my spark plugs ( BANG BANG!) hahaha anyways I think the issue I am having is due to the plugs being bad ( around 20k miles and 2 yrs on them)

SO im going to get the HKS DLI II and some Plugs and install them at the same time,

Looks like that EVC 5 is going to have to wait a little longer

 

Iridiums require less energy to fire, when compared to a copper plug. So at the limit, they will provide better performance for high powered applications. Iridiums also last at least 2-3 times as long as coppers, and nearly twice as long as platinums. These intervals are based on OEM usage. For high powered FI, I still tend to change my plugs about every 10,000 -15,000 miles, since plugs are relatively inexpensive.

In regards to the HKS DLI, it is a worthwhile unit for sure. Trying to determine measurable results is very difficult, but they have been proven to add some smoothness to the dyno charts, and a handful of whp in NA applications. Gapping hasnt been an issue for us. Even at 600whp, we run stock gaps of .040-.044, and just drop the NGK iridiums right in. Alberto might have experienced some misfiring due to an unrelated issue, or maybe a tuning problem.

Alberto, we'll be tuning a Darton sleeved block with Greddy kit and DLI in the next couple of days. I'll be able to let you know if I see any significant improvements, vs. the other Greddy kits we've done at 15-17psi.

 

Great...

 

Oh nice! Would be nice to get some kind of numbers from a reputable tuner...hopefully it works out for the owner at 17psi