I have used them on my '84 for the last 2 years without changing....Now is time to change plugs.....will buy the splitfire plattinum plugs.....these plugs have worked great these past 2 years....what do you guys think.....i would relly like to know.....
thank you
tony
ps....don't be so harsh...
:cheers:

 

I'm sticking with AC Declo. :auto:

 

GDP,
To each his own....
tony
:cool:

 

NGK work great in mine, but Splitfires probably would too.

 

:iagree:
I had a set of splitfires in the 94 for awhile. Fried a plug wire in about 10K miles. Went back to the Delcos and havn't had a problem in the last 160K!

 

how did the split fire spark plug fry your plug wire? the electrode tip design has nothing to do with the plug wire.

 

:U

 

NGK V-Powers used in my '85-no problems. :D

 

Ran sputter-fires in a GTO 400in cutout bad at high rpms.
Autolites solved the problem. Big motors with high volmetric pressure tend to blow out the weak spark from the split fire design.
In a non performance app any plug works. In high performance engines I run Autolites only.

 

"Big motors with high volmetric pressure tend to blow out the weak spark from the split fire design." :confused:
The spark is created by the ignition coil not the plug. The plug is soley the point of delivery. How do 500plus CID 2000hp racing engines run on splitfire plugs or bosch +4 or ony other muliple eltrode design? The splitfire plugs design does not increase/decrease/ or in any way change the size,duration, or strength of your spark. The 1st advantage to a multiple electrode design is to move the electrode out of the path of the flame kernal the same thing is done with the "cut" plug that many people do themselves its an old timer trick to help clear the flame path. The 2nd is that the electrical spark will travel through the point of least resistance if given 2 or 4 options then the chance of misfire is reduced because the spark still occurs at the plug end as opposed to off the side or through the insulator. The disadvantage is that installers usually do not gap these plugs properly or actually damage the electrode in the process so after installation they have a misfire "power loss" that they blame on the spark plug design. The splitfire design is nothing new, multiple elctrodes have been made for years by every plug manufacturer in one form or another. U groove , 2 electrode, 4 electrode, star shaped, for street use its more a mattery of flavor choice. Any minor differance in horsepower or torque from a spark plug design are only going to be measured on a dyno and never the seat of pants.

 

I stick with A/C delco I might go with the rapid fire A/C later. But I have never had a problem with A/C and it is what the car was designed to run with.

 

Since I've seen positive results with cut-back plugs, I cut back the last set of Split Fires I had. These days I run cut-back AC Delco.

If the Split Fires work well go with them.

 

I tried Splitfires ,and noticed no difference,now using NGK with good results. :steering:

 

Split Fires are overpriced junk. Electricty follows the path of least resistance. Once one of the electrodes gets a tiny bit of carbon on it, the spark will want to go to the other. If you change plugs every 100 miles, they might be useful. Otherwise you're throwing your money away.

 

NGK TR-55ix (Iridium) :thumbs: :yesnod:

 

What big motor are you talking about? do you have a 572 or a 600 cid?

 

See I hate that .I did'nt read your post before I said the same thing. :iagree:


[Modified by offershore, 12:55 AM 5/18/2003]

 

I've used the split fires in 540,572 & 600 cid engines that I've built. I found then good for one thing. they do give me a little more time before they foul. due to the V but thats nothing new it's been done for YEARS. but now you can buy them already done. (saves time) By design my engines run very rich at idle because at 5500-6000 for 2-4 hours straight they NEED that fuel. they idle for maybe 10 min. (cyl. wash is a little problem) the oil is changed after every ride so no biggie. Splitfire plugs were a marketing scam, and a very good one. Unless you run so much fuel through the engine that your eyes burn from it' you can run AC with no problem. Ps. you see the price of splitfires lately? the have a new scam out. In my .02 ac in gm, autolite in ford. :flag Sparkie's have a selfcleaning temp. once they reach that the fire like new!


[Modified by offershore, 2:02 AM 5/18/2003]


[Modified by offershore, 2:04 AM 5/18/2003]

 

:iagree: I use them in my cars. Great plugs