Anyone here have Splitfire plugs?
Instructor
Joined: Jun 2004
Posts: 120
Likes: 0
I had the Splitfires on a Z28, a long time ago when those plugs first hit the market. I thought they performed better than stock...but then Bosch came out with the Platinum Plus 4, and I found out the Splitfires don't even come close to Bosch. I dumped the Splitfires in a heartbeat and never looked back...
Advanced
Joined: Jun 2004
Posts: 58
Likes: 0
From: Saginaw Mi
split fire
Split fire, tornado, or any of the other junk advertised on info TV is junk.
If it wasn't don't you think GM or Ford would just love to jump onboard?? Think of all the money they could save trying to meet fleet mileage, without spending a dime....
If it wasn't don't you think GM or Ford would just love to jump onboard?? Think of all the money they could save trying to meet fleet mileage, without spending a dime....
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Melting Slicks
Joined: Nov 2003
Posts: 3,396
Likes: 2
From: North Manchester Indiana
:iagree ..I have a neighbor who has just about every gimmick he can buy to get mileage or power, be it tornado, splitfire, oil aditives, fuel line magnets, carb spacer atomizer screens, .... he must have gained 500 hp and 60 mpg.....
Melting Slicks
Joined: Jul 2004
Posts: 3,353
Likes: 0
From: Richmond Hill Ontario
Plugs
Ok, dumb question, what's wrong with the factory plugs? Unless you are introducing nitrous or forced induction of some type, stock plugs are great. I run a 1970 Chevelle with a BB chevy and it runs high 10's straight motor, I have tried a number of plug manufacturer changes in the same heat range and no diff in elapse time and top end speed? This is real life trial and tribulations I am sharing.
Tino
Tino
Safety Car
Joined: Oct 2000
Posts: 4,949
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From: Monticello MN
Originally Posted by Evil_Bob
I had the Splitfires on a Z28, a long time ago when those plugs first hit the market. I thought they performed better than stock...but then Bosch came out with the Platinum Plus 4, and I found out the Splitfires don't even come close to Bosch. I dumped the Splitfires in a heartbeat and never looked back...
Great experience with the Plus 4's also. Really smoothed the idle and should last almost forever.Ed
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From: King George VA
Originally Posted by C5XTASY
Great experience with the Plus 4's also. Really smoothed the idle and should last almost forever.Ed
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Melting Slicks
Joined: Jan 2002
Posts: 2,754
Likes: 0
From: Nokomis FL
"what's wrong with the factory plugs?"
At 20k my idle started getting rough. Pulled the plugs, no easy task, and found 4 of the tabs above the electrodes missing.
Went with TR55's and never looked back.
At 20k my idle started getting rough. Pulled the plugs, no easy task, and found 4 of the tabs above the electrodes missing.
Went with TR55's and never looked back.
Instructor
Joined: Jun 2004
Posts: 120
Likes: 0
Originally Posted by Tino
Ok, dumb question, what's wrong with the factory plugs? Unless you are introducing nitrous or forced induction of some type, stock plugs are great. I run a 1970 Chevelle with a BB chevy and it runs high 10's straight motor, I have tried a number of plug manufacturer changes in the same heat range and no diff in elapse time and top end speed? This is real life trial and tribulations I am sharing.
Tino
Tino
Melting Slicks
Joined: Nov 2003
Posts: 3,396
Likes: 2
From: North Manchester Indiana
Ok, correct me if I am wrong,,, if a plug has more than one ground electrode, the spark will still only jump to ONE of them , not more , every time it fires....I have always been told electricy takes the easiest path, not multiple paths. am I wrong??? So , I can see if you have deposits on a ground electode and you have more than one, the juice will find the easiest path, so multiple may have its advantage. I have not seem many race plugs like plus 4 or splitfires..but I have seen some strange ones. I have had great luck with the hot u nippo's to not foul like regular plugs. Yes, I tried split fires and they sucked, I have tried bosch plus 2 and they seem ok,,, but irridiums seem the best and last long time, however in the vette I run tr55 , cause thats what my tuner said,and I can blame him....
Le Mans Master
Joined: Jun 2004
Posts: 6,269
Likes: 50
From: Dallas Texas
St. Jude Donor '06-'07-'09-'10
[QUOTE=wrustywrench]Ok, correct me if I am wrong,,, if a plug has more than one ground electrode, the spark will still only jump to ONE of them , not more , every time it fires QUOTE]
and I would think that the additional electrodes would shield the spark, particularily in a WOT situation. I've heard of racers, trying for that last little bit, actually install the plugs in the heads before installation with the electrode away from the combustion center to give more exposure to the spark.
and I would think that the additional electrodes would shield the spark, particularily in a WOT situation. I've heard of racers, trying for that last little bit, actually install the plugs in the heads before installation with the electrode away from the combustion center to give more exposure to the spark.
Le Mans Master
Joined: Jul 2002
Posts: 7,076
Likes: 26
From: Nevada and Florida
Originally Posted by wrustywrench
Ok, correct me if I am wrong,,, if a plug has more than one ground electrode, the spark will still only jump to ONE of them , not more , every time it fires....I have always been told electricy takes the easiest path, not multiple paths. am I wrong??? So , I can see if you have deposits on a ground electode and you have more than one, the juice will find the easiest path, so multiple may have its advantage. I have not seem many race plugs like plus 4 or splitfires..but I have seen some strange ones. I have had great luck with the hot u nippo's to not foul like regular plugs. Yes, I tried split fires and they sucked, I have tried bosch plus 2 and they seem ok,,, but irridiums seem the best and last long time, however in the vette I run tr55 , cause thats what my tuner said,and I can blame him....
Le Mans Master
Joined: Feb 1999
Posts: 6,269
Likes: 1
From: Richmond Ca
Originally Posted by Ls1Rat
TRUE 
I'd say they work as good as any the others suggested.
Burning Brakes
Joined: Oct 2000
Posts: 775
Likes: 1
From: Oviedo FL
I've heard of racers, trying for that last little bit, actually install the plugs in the heads before installation with the electrode away from the combustion center to give more exposure to the spark.