no-gap spark plugs
Thread Starter
Joined: Apr 2006
Posts: 188
Likes: 2
From: Rio Rancho, NM
no-gap spark plugs I am curious to know if anyone is using those spark plugs that don't need to be gapped, you know, those that have two or four tips. Are these any good for an LS1? I did a search but nothing came up on the subject. Could these maybe cause more harm than good?
Teching In
Joined: Feb 2006
Posts: 30
Likes: 0
From: HICKMAN NE
Are you talking about the bosch platinum +4 spark plugs? I sell them where i work, and i dont recommend them. they are not any better then the ngks. the only difference is that the spark has 4 points to choose from instead of one. the spark will take the shortest distance, and with four to choose from, the plug will just last longer. i have heard of customers complaining that they put them into their cars and their cars ran worse then b4 they put them in. i gave them what the oe recommended and they said that their car ran great. If i was you, run the ngk, maybe even the iridiums, that what i have and they run great.
Thread Starter
Joined: Apr 2006
Posts: 188
Likes: 2
From: Rio Rancho, NM
Originally Posted by sroach20
they are good for airplanes, if a tip breaks off your not screwed. if you plan on flying in your car like the dhl vans then go for it..
. Thanks for all who chimed in, I'll just stick with whats inexpensive and obviously works well. Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
agreed plugs suck but most double platinums are no gap plugs they should be preset like the iridium. i love ac's but that cause i try to eliminate any foriegn parts on my cars. lol even though 99.9 percent of it was made in mexico canada japan china ect ect
Bosch is marketing those plugs on appearance, not function. More ground area is not better, it's actually worse. More mass and surface area around the early flame will tend to cool it, and rob energy. This slows the initial burn. The best plug you can get is a fine wire iridium, like NGK or Denso, with a single fine wire ground. These are usually marketted as racing plugs, and can be quite expensive.
Originally Posted by sroach20
they are good for airplanes, if a tip breaks off your not screwed. if you plan on flying in your car like the dhl vans then go for it..
Umm??? Not sure how much flying you do but two plugs on two differnt mags pretty much has this covered, not more electrodes.
Anyway...ALWAYS chech the gap on your plugs, why wouldn't you take the extra 5-10 minutes to ensure you don't have a problem?
I tried the Bosch 4's when I first got my LS1. Car started running like crap. I tok it to my tuner and he told me to rip the bosch's out and get some NGK's. Problem was solved and I've been using NGK's ever since 
