AC Delco rapidfire? Good? Bad?

[Darkside]

Are these plugs any good fo our turbo cars?

 

[cool 84]

Very bad. They detonated horribly in mine.

 

[TURBOV6]

They made my GN run slower.

 

[bruce]

Originally posted by Darkside
Are these plugs any good fo our turbo cars?

They don't even make good paper weights
Hmm, maybe use them for sinkers?.

 

[gn4u2c]

nothing better than the plain ole' AC plugs none of that BS rapid fire or 4 prong ,split fire **** for me.

 

[TurboBurge]

All of the above mentioned do not work very good because of the ignition style (coil packs) in our cars. The coils packs produce a positive and negative discharge causing 3 of the plugs to fire from the center electrode out to the ground, and the other 3 fire from the ground to the center. The rapid fire and split fire plugs were designed around a conventional firing ignition system (firing from center out). I have never used any of those in my T Type, but I did run split fires in my 84 regal in which I had a 455 Stage one. With the split fires I could get away with 3 to 4 degrees more ignition timing (w/o knock on 93 octane) and I could tell the difference coming out of the hole. I would definitely recommend them to someone driving an older V-8 performance car. Sometimes I miss driving the big block car.

 

[no rice]

Be very careful of the heat range for split fires and Bosch +4.
just stick with the old AC,s.
Sometimes spending more is just not worth it.



Lue

 

[TURBOV6]

Originally posted by no rice

Sometimes spending more is just not worth it.



Lue

Standard A/C Delco plugs are about half the price as those plugs

 

[Darkside]

Thanks, Guys!
I just figued there was a reason they would not work.
Michael