getting new spark plugs hopefully...heat ranges?!?

mrnickleye · 02-21-2007, 03:42 AM

We use only Autolite platinum plugs in every vehicle at my shop. Been using them for 30 yrs without a failure.

I have seen lots of failed plugs from Champion, Bosch, and those 'trick' ones.

Most of the techs that I respect (because they are very smart, and many have race cars), won't touch the two brands I mentioned.

Denso may be a good choice. I used them in my race motoX bikes. NGK is also a good choice.

Read those articles, as they discuss going colder plugs per a certain amount of HP increase.

SideWinderGX · 02-21-2007, 03:44 AM

i havent heard of those brands, so i probably wouldnt have bought them...but thank you for the heads up.

read the articles, very informative, ill read em over again tomorrow to make sure i remember all the info. i think its for every 75-100 HP you gain, you go down one cold level on your plugs. which i wont have to worry about for a while haha.

NGK iridiums are my first choice, they seem to be really popular and have great results, but ill keep my eyes peeled for any autolite platinums too.

02-21-2007, 03:42 AM	#1
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	We use only Autolite platinum plugs in every vehicle at my shop. Been using them for 30 yrs without a failure. I have seen lots of failed plugs from Champion, Bosch, and those 'trick' ones. Most of the techs that I respect (because they are very smart, and many have race cars), won't touch the two brands I mentioned. Denso may be a good choice. I used them in my race motoX bikes. NGK is also a good choice. Read those articles, as they discuss going colder plugs per a certain amount of HP increase. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

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02-21-2007, 03:44 AM	#2
SideWinderGX 3" Exhaust Join Date: Feb 2007 Location: Syracuse, NY Posts: 203	i havent heard of those brands, so i probably wouldnt have bought them...but thank you for the heads up. read the articles, very informative, ill read em over again tomorrow to make sure i remember all the info. i think its for every 75-100 HP you gain, you go down one cold level on your plugs. which i wont have to worry about for a while haha. NGK iridiums are my first choice, they seem to be really popular and have great results, but ill keep my eyes peeled for any autolite platinums too.