Another **** spark plug thread!!
Thread Starter
|
Record Breaker
Joined: Apr 2008
Posts: 1,524
Likes: 0
From: REDNECK, USA
Another **** spark plug thread!!
I was changing the plugs in my Hemi today and noticed every other plug was a Bosch +4 plug and the others were the Champion Copper plus. Whats that all about?? Sorry for another spark plug thread but I just had to ask.
Captain
Joined: May 2008
Posts: 731
Likes: 0
From: Inverness
noooooo...i thought of this myself..if you have the waste spark ignition..( i have another thread about this very thing 
)in theory you only need to change the 8 under the coil cuz the other 8 only fire on the exhaust stroke...thus wasting the money on the +4s on the wasted spark ones....
)in theory you only need to change the 8 under the coil cuz the other 8 only fire on the exhaust stroke...thus wasting the money on the +4s on the wasted spark ones....
Administrator
Joined: Jul 2007
Posts: 24,686
Likes: 21
From: South Georgia/East Florida
I would say someone was attempting to save a couple of bucks. I'd imagine the +4s were the ones under the coil packs?
The other plug at each cylinder is only used for a secondary burn. This is primarily done for cleaner emissions. I'm not really sure if there is a performance benefit. I'd probably not do it, nor even run the +4's in the primaries for that matter.
Nobody has shown me yet where there is any benefit to a platinum plug in the Hemi. Replace them with 16 low cost Champion Coppers and you'll be good for the next 30k miles...
The other plug at each cylinder is only used for a secondary burn. This is primarily done for cleaner emissions. I'm not really sure if there is a performance benefit. I'd probably not do it, nor even run the +4's in the primaries for that matter.
Nobody has shown me yet where there is any benefit to a platinum plug in the Hemi. Replace them with 16 low cost Champion Coppers and you'll be good for the next 30k miles...
Thread Starter
|
Record Breaker
Joined: Apr 2008
Posts: 1,524
Likes: 0
From: REDNECK, USA
I would say someone was attempting to save a couple of bucks. I'd imagine the +4s were the ones under the coil packs?
The other plug at each cylinder is only used for a secondary burn. This is primarily done for cleaner emissions. I'm not really sure if there is a performance benefit. I'd probably not do it, nor even run the +4's in the primaries for that matter.
Nobody has shown me yet where there is any benefit to a platinum plug in the Hemi. Replace them with 16 low cost Champion Coppers and you'll be good for the next 30k miles...
The other plug at each cylinder is only used for a secondary burn. This is primarily done for cleaner emissions. I'm not really sure if there is a performance benefit. I'd probably not do it, nor even run the +4's in the primaries for that matter.
Nobody has shown me yet where there is any benefit to a platinum plug in the Hemi. Replace them with 16 low cost Champion Coppers and you'll be good for the next 30k miles...
Site Moderator
Joined: May 2008
Posts: 9,657
Likes: 24
From: Louisville, Ky
They probably didn't know that there were plugs under the coils. Just under the wires like most other engines.
Trending Topics
Administrator
Joined: Jul 2007
Posts: 24,686
Likes: 21
From: South Georgia/East Florida
Regardless, it wouldn't have hurt anything...
All Star
Joined: Dec 2008
Posts: 982
Likes: 0
From: Lynchburg, VA
I love forums, so much info to learn..... 
On a side note (or thread hijack attempt), our D has 64k miles on it, we've only had it a year. Time to tune'er up huh? I just saw another thread about tuneups, so I'll hit that up first........
On a side note (or thread hijack attempt), our D has 64k miles on it, we've only had it a year. Time to tune'er up huh? I just saw another thread about tuneups, so I'll hit that up first........