Best sparkplugs for 320whp civic ls/vtec

Reply Subscribe

Thread Tools

Search this Thread

Aug 21, 2010 | 03:15 PM

madcrx69

Thread Starter

Honda-Tech Member

Joined: Jan 2009

Posts: 64

Likes: 0

Best sparkplugs for 320whp civic ls/vtec

Hi, I'm running the NGK V-power 8 sparkplugs, but just wanted to ask if I should change for the 7's or keep the 8's. Not planning on going more boost. Right now I am at 320whp at 10 psi.
Any comments.

Aug 21, 2010 | 05:20 PM

Silva Bullit DC4

Honda-Tech Member

Joined: Jan 2008

Posts: 2,611

Likes: 1

From: Dinwiddie, VA, USA

Re: Best sparkplugs for 320whp civic ls/vtec

A lot of people run the 7's at your power level, but you'll be fine with the 8's. I was around the same power with my old LS setup, and I ran the 4554 NGK 8's with a .026" gap, no issues.

Aug 22, 2010 | 08:16 AM

Turbo-LS

Honda-Tech Member

iTrader: (4)

Joined: Apr 2005

Posts: 12,903

Likes: 1

From: South, Texas

Re: Best sparkplugs for 320whp civic ls/vtec

8 is to cold of a plug for that hp level. bkr7e is where you need to be. the gaps will b determind on ignition setup and if stock how many miles are on it