What plugs and gap for 5.3 with supercharger
#13
Teching In
Thread Starter
Join Date: Sep 2011
Location: Texas
Posts: 46
Likes: 0
Received 0 Likes
on
0 Posts
#15
TECH Apprentice
Join Date: Jul 2005
Location: Utica, MI
Posts: 375
Likes: 0
Received 0 Likes
on
0 Posts
To each his own, but I would say run the BR6EF vs. the TR6. The TR6 has a projected tip which will work, but why take a chance. I've run TR6's (9psi boost) and didn't have problems and others have run more boost, but typically in boosted applications its recommended to run non-projected plugs.
I would keep the heat range the same though (BR6EF). FWIW, I just switched out some BR7EF's for the BR6EF's today. I was running a very aggressive tune last year and was borderline knock so I was running a little colder plug (BR7EF). Since I added the meth injection, the knock is a thing of the past so I went one heat range hotter (BR6EF). I'm happy with these thus far and it seems like my idle is a little cleaner.
NOTE: The 6's are one range colder then stock. The 7's are two ranges colder. I gapped my plugs at .035.
Good luck.
I would keep the heat range the same though (BR6EF). FWIW, I just switched out some BR7EF's for the BR6EF's today. I was running a very aggressive tune last year and was borderline knock so I was running a little colder plug (BR7EF). Since I added the meth injection, the knock is a thing of the past so I went one heat range hotter (BR6EF). I'm happy with these thus far and it seems like my idle is a little cleaner.
NOTE: The 6's are one range colder then stock. The 7's are two ranges colder. I gapped my plugs at .035.
Good luck.
Thread
Thread Starter
Forum
Replies
Last Post
05GMC4.8
GMT 900 Trucks General Discussion
5
08-07-2015 09:55 PM