plugs for new engine

Reply Subscribe

Thread Tools

Search this Thread

Dec 22, 2010 | 06:14 AM

BradSV8

Thread Starter

Teching In

Joined: Nov 2006

Posts: 30

Likes: 0

From: Adelaide, Australia

plugs for new engine

Hi guys my name is Brad and I am from Australia. I have been reading a lot of info on this site about spark plugs. I have a LS1 with a mid size cam, stock heads and stock bottom end. I have been spraying a 200hp dry shot for the last 4yrs on the TR6 plugs and not had any problems. After reading thru a few threads on here it got me thinking that perhaps I should run a colder plug on my new engine which is LS3. It will be a similar combo to my current LS1 only with a bigger camshaft.
I have run consistant low 10 sec 1/4's with the LS1 setup and I am looking for a 9 sec pass with the new combo. Also the car will be street driven a fair bit as it is 400 km's to my nearest 1/8th and 800 km's to my nearest 1/4. Will I be able to run the colder plugs N/A with out too many problems?

Dec 22, 2010 | 06:30 AM

Cold Zero

TECH Regular

iTrader: (1)

Joined: Jun 2007

Posts: 412

Likes: 0

From: Saudi Arabia, Qatif

for 200 shot you will need NGK BR8EF ( 4 step colder ) and gap them @ 0.35"

And BTW, any pics or videos of your build ? .. I know Australianz always do it right when in it comes to LSx ENGINES ..

Dec 22, 2010 | 10:39 AM

Nitro Dave's Nitrous Outlet

FormerVendor

iTrader: (25)

Joined: Jun 2002

Posts: 12,283

Likes: 4

From: Waco, TX

With stock compression and displacement you are right on the fine line between BR7EF and BR8EFS plugs. I would start with the 8s and check the plug. If they are showing to be to cold then swap to the 7s.
Dave