DGageSS

iTrader: (9)

was wondering which of the two plugs were better and maybe some reasons to support your opinion:

NGK TR55 vs. AC Delco Rapid Fire #12

Also what wires to use:

Taylor or MSD or Stock

Thanks

98Z28importslayer

ngk tr55s and msd super conducter 8.5mm wires

Formulated

iTrader: (16)

Ditto... If you have a few more dollars, go for the NGK iridiums.

95TAJade

iTrader: (4)

so for someone runnin' real close to stock trim, is there any benefit/difference between the NGK TR55's and the NGK Iridium's?

DGageSS

iTrader: (9)

bump bump

Damian

iTrader: (89)

No. The Iridiums only real feature over the Coppers is that they last longer.

Copper = Better conductor of electricity.

Formulated

iTrader: (16)

Any fine wire electrode, like iridium, will jump the spark gap with much less voltage. You can run the iridiums with either a wider gap, or higher compression. For close to stock specs, the main feature is better durability. Unless the car has problems, you won't notice a difference. If you run into coil or plug wire issues later, the iridiums may prolong the onset of big problems.

TLUZLS1

iTrader: (6)

Just go with the TR55s. I run those and MSD wires.

FiredUpZ28

You guys know you can mess up the secondary ignition on the car by changing plug voltages and resistances (gap) right?

Unertl42

iTrader: (63)

I personally like the AC Delco iridiums, but whatever

philsblwnz28

iTrader: (10)

Formulated, I like your avatar. Like Mine?