spyterus

iTrader: (13)

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?

spare tire

iTrader: (3)

I have personally never ran them, I know that if you are going forced induction they are a no, no. Just stick with NGK

Z's Z-28

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.

sroach20

iTrader: (31)

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..

blownta00

bosch products suck-i always check the gap on everything too cuz u might geta moran at autozone who drops everything-just go with ngk tr55

sroach20

iTrader: (31)

bosch o2 sensors are the best & bosch plugs are great if you have a bosch ignition system.

spyterus

iTrader: (13)

Don't we all fly in our cars around here? Or least want to . Thanks for all who chimed in, I'll just stick with whats inexpensive and obviously works well.

blownta00

youre right about 02s but there plugs suck

kistlerjm9

iTrader: (24)

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

Formulated

iTrader: (16)

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.

jimmypop13

iTrader: (17)

It takes like 3 seconds to check the gap on ngk's to make sure they are right and I've never had one that I had to change the gap on. talk about lazy

LSWon00

iTrader: (3)

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?

robertbartsch

I have experimented with Bosch 4 and 2 in LSX engines.

Both work fine and last longer then NGK. They are pricey, however.

transAm-98

iTrader: (1)

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