2.9 Whipple supercharger Plugs ??

[tommy s]

I'm running 16lbs and 18 lbs of boost Whipple says NGK TR7IX or TR8IX ? gaped at .25 was wondering wich one you guys are running ??

 

[2011SVT]

I'm running 16lbs and 18 lbs of boost Whipple says NGK TR7IX or TR8IX ? gaped at .25 was wondering wich one you guys are running ??

Neither. NGK TR6IX gapped at .025. No issues with idling, fouling, or the '6' being too hot a plug (detonation).

 

[Tob]

As supplied in the FRPP/Whipple 750 hp kit

Gap recommended at .026

 

[mullens]

Agree TR7IX. I wouldn't run stock heat range with that kind of boost.

 

[crazyrifle]

and what about kennebell 2.8 at similar boost ?

18 psi

 

[mullens]

With the KB I'd do the same. It doesn't mattter how you're getting the boost, but when you get to 18+ psi you're risking some serious detonation running stock heat range. I'm only pushing 15psi and I run 7's just to be safe.

 

[crazyrifle]

With the KB I'd do the same. It doesn't mattter how you're getting the boost, but when you get to 18+ psi you're risking some serious detonation running stock heat range. I'm only pushing 15psi and I run 7's just to be safe.

im running tr6 isnt ok gap at 28?

 

[mullens]

Yes .028 is fine for your application. I'm running .035 because I'm at much lower boost.

I know tons of people have run the TR6 without any problems but if it were me I'd switch to the TR7IX becasue I don't feel like changing my plugs every oil change. That's just me though.

 

[09Troublemaker]

I run the TR7's

 

[shooter23]

I run the Copper TR6, and yes, I change them every oil change, not that big of a deal though, considering, this is only once a year...