Carbureted LSX Forum Carburetors | Carbed Intakes | Carb Tuning Tips for LSX Enthusiasts

-7 plug

Thread Tools
 
Search this Thread
 
Old Mar 8, 2015 | 11:48 AM
  #1  
fast89stang's Avatar
Thread Starter
TECH Resident
iTrader: (2)
 
Joined: Aug 2005
Posts: 796
Likes: 2
From: Hardin ky
Default -7 plug

Ok, got my carb coming Tuesday. He recommends a-7 plug. Can someone tell me what plug is a -7. I never have cared for ngk, might be different inn E85. Mark Sullens likes hot plugs for his carbs, he has forgot more than I know about running it. So I'm gonna listen to the man. Thanks guys.
Reply
Old Mar 9, 2015 | 11:40 AM
  #2  
fast89stang's Avatar
Thread Starter
TECH Resident
iTrader: (2)
 
Joined: Aug 2005
Posts: 796
Likes: 2
From: Hardin ky
Default

nobody?
Reply
Old Mar 9, 2015 | 07:17 PM
  #3  
Doug G's Avatar
10 Second Club
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2010
Posts: 4,465
Likes: 192
From: Harford Co. Maryland
Default

????
Amazon.com: NGK (4091) R5671A-7 Racing Spark Plug, Pack of 1: Automotive Amazon.com: NGK (4091) R5671A-7 Racing Spark Plug, Pack of 1: Automotive
??????
Reply
Old Mar 9, 2015 | 08:07 PM
  #4  
ZONES89RS's Avatar
In-Zane Moderator
15 Year Member
iTrader: (25)
 
Joined: Jan 2007
Posts: 11,941
Likes: 33
From: Conroe, Texas
Default

For E85 I'm sure a hotter plug helps. I run a BR7 for nitrous, I would imagine a TR5 for all motor E85 would be good.
Reply
Old Mar 9, 2015 | 10:48 PM
  #5  
fast89stang's Avatar
Thread Starter
TECH Resident
iTrader: (2)
 
Joined: Aug 2005
Posts: 796
Likes: 2
From: Hardin ky
Default

I may have to get with Mark Sullens. He says start with a -7 and go from there. He says he wants a hotter plug than you run on gas. I think mine are autolite 604s on gas.
Reply
Old Mar 10, 2015 | 04:34 AM
  #6  
Doug G's Avatar
10 Second Club
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2010
Posts: 4,465
Likes: 192
From: Harford Co. Maryland
Default

Reply
Old Mar 10, 2015 | 08:15 AM
  #7  
fast89stang's Avatar
Thread Starter
TECH Resident
iTrader: (2)
 
Joined: Aug 2005
Posts: 796
Likes: 2
From: Hardin ky
Default

I talked to Mark, he said a tr5 would work, but its a resistor plug. He said a non resistor plug would be better for a drag car. Now if I can cross a tr5 over to a non resistor plug.
Reply
Old Mar 10, 2015 | 03:11 PM
  #8  
Doug G's Avatar
10 Second Club
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2010
Posts: 4,465
Likes: 192
From: Harford Co. Maryland
Default

http://www.dragstuff.com/techarticle...reference.html
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 03:44 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE