[klcsmooth]

will the platnium plugs cause rough idle amd bad throtle response?

 

[salvageV6]

Possibly when one of the electrodes breaks off and it stops firing.

They don't hold up well to any detonation.

Don't ask me how I know this.

My problems were with Bosch ones.

 

[The Radius Kid]

Stay away from those stupid platinum plugs.
They have no place in a T/R.
That includes the G/M rapid fire,fine wire platinums.

 

[six-3X's-aday]

AGREED!!! My GN hated the platinums,..!!!! nono

 

[Mike L]

Well with that being said. What type of spark plug do you guys recommend??

 

[Quick Toy]

AC Delco CR 43TS, Autolite.

Paul
72 Toyota Celica with an 87 GN drive train

 

[QuickWE4]

I use the AC Delco's - CR43TS -- with the heavier electrode and they seem to work well.....

Not sure of the kind of boost you're running, but you could always go to the 42's if you're running serious levels...

Rich

 

[Ormand]

There are also some NGKs that are similar to the ACs and Autolites. The Buick has three plugs that fire "backwards", and the platinum plugs don't work well in that case. Ford used three "normal" plugs along with three platinum plugs for some of the SHO Taurus engines that had waste spark ignition similar to the Buick design.

 

[Steve Wood]

Autolite 24s, AC R43s/cr43 as above, or NGK UR-5s

all gapped a tight .035



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