Generation IV External Engine LS2 | LS3 | LS7 | L92 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

spark plugs

Thread Tools
 
Search this Thread
 
Old 04-05-2017, 12:57 PM
  #1  
Teching In
Thread Starter
 
BALDdragon's Avatar
 
Join Date: Jul 2016
Location: Jacksonville NC and old bridge NJ
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default spark plugs

I have an ls2 engine stock need to change plugs what is the best recommended
Old 04-05-2017, 06:35 PM
  #2  
Banned
iTrader: (2)
 
LS6427's Avatar
 
Join Date: May 2008
Location: South Florida
Posts: 11,291
Likes: 0
Received 11 Likes on 11 Posts

Default

NGK TR55

or

NGK TR5

Gapped to .050

.
Old 04-15-2017, 02:48 PM
  #3  
Teching In
iTrader: (1)
 
BmanZ06's Avatar
 
Join Date: Apr 2017
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
Default

I'd say the NGK TR55. NGK makes a good quality spark plug
Old 04-17-2017, 10:21 AM
  #4  
FormerVendor
iTrader: (1)
 
pantera_efi's Avatar
 
Join Date: Nov 2008
Location: Santa Ana, CA. USA
Posts: 2,157
Likes: 0
Received 16 Likes on 16 Posts

Default Plug Gap = MPG

My L-92 test.

I am about to fit my IGN-1A coil kit to my 2007 Escalade.

The baseline is a 50K driven millage @ 22 MPG "best" freeway, even grade, both ways at 38 mikes each way, tested over 50 times.
The sparkplugs have never been changed.
New plugs gaped at .040" for the first part of the test resulted in a 1.6 MPG LOSS tested 12 times.
The next phase will be to ONLY OPEN the GAP to the OEM GM .060"

My guess is that the mileage will return to normal ?

Lance

Last edited by pantera_efi; 04-17-2017 at 11:34 AM. Reason: SP



Quick Reply: spark plugs



All times are GMT -5. The time now is 03:52 PM.