Why 1 Step colder Spark plugs...which ones?

[Kypatrick]

Is there anybody else out there running the copper autolites? I run them in my supra and love them. I do have to change them more often but they are cheap and reliable.

I run the AR3923. Someone mentioned copper havin less life, how often should they be changed?

 

[BOOSTR]

Why Autolites over NGKs or Denso's in a Japanese engine?

I just changed my coppers that have been in over a year and a half. I checked them about 3 months prior and had to regap them.

I'd just say make a point to pull them and check them, keep an eye out for subtle performance changes and don't keep them in as long as you would a platinum or iridium plug. Less than $9 w/tax for a set of 4 is no biggie.

 

[Supra8795]

Why Autolites over NGKs or Denso's in a Japanese engine?

I just changed my coppers that have been in over a year and a half. I checked them about 3 months prior and had to regap them.

I'd just say make a point to pull them and check them, keep an eye out for subtle performance changes and don't keep them in as long as you would a platinum or iridium plug. Less than $9 w/tax for a set of 4 is no biggie.

Ive tried many different plugs in my supra and the only ones that i have never had a problem with are the autolites. I havent been getting spark blowout either and im running 25-30psi of boost. I guess its just whatever works the best. Being new to these cars im just trying to find the best plug for it.

 

[BOOSTR]

You can't argue with the results of using them in your Supra. Most people seem to use either the NGKs or Denso in the MSP, modified or not. I've never had a problem running NGKs but did notice better performance from the coppers after running a few sets of the laser platinums for the first 64K miles. Welcome to forum by the way.