Anybody use Splitifre spark plugs???
#1
Guest
Posts: n/a
Anybody use Splitifre spark plugs???
My rebuilt engine (L79) will be ready soon. I'm accumulating all of the necessary new components (spark plug wires, cap, rotor, etc . . ), but have yet to buy new spark plugs. I saw an ad for Splitifre plugs . . . does anybody use them???
#2
I have never used them, and think they are just market hype.
I put one in the aviaiton plug tester, cranked the air to it, and it flamed out quicker then an NGK we had laying around. You can view the spark through a window on the tester, and the spark would alternate now and then, but I never saw a "Dual" spark. I even closed the gap a tad to see if that would help, nope.
Just get a set of NGK B4's.
Marrk
I put one in the aviaiton plug tester, cranked the air to it, and it flamed out quicker then an NGK we had laying around. You can view the spark through a window on the tester, and the spark would alternate now and then, but I never saw a "Dual" spark. I even closed the gap a tad to see if that would help, nope.
Just get a set of NGK B4's.
Marrk
#4
Team Owner
Member Since: Mar 2003
Location: Greenville, Indiana
Posts: 26,118
Received 1,843 Likes
on
1,398 Posts
Originally Posted by youwish2bme
ah.. What he said... All hype... Dave..
If you want to spend the extra money for Splitfires, go ahead and order the Tornado while you're at it! They work well together, on you wallet.
#5
Don't take the criticism personally, we have all been there.
I think of it this way. GM, FORD, Daimler, Etc spend millions on R&D and if they thought the tornado or split plugs were the deal, they would have figured it out by now. As simple of a mod as it would be, for the claimed performance, the big 3 would certainly have there fingers in it. Gaining 1 or 2 miles per gallon with a light truck is HUGE, and they would most certainly be interested in just that, if these products produced the results they claim.
Secondly, there are production and R&D engineers that combined probably have 100 years of automotive manufacturing experience on just this forum, and they have done all the homework for us, all we have to do is copy it down, and hand it in.
Mark
I think of it this way. GM, FORD, Daimler, Etc spend millions on R&D and if they thought the tornado or split plugs were the deal, they would have figured it out by now. As simple of a mod as it would be, for the claimed performance, the big 3 would certainly have there fingers in it. Gaining 1 or 2 miles per gallon with a light truck is HUGE, and they would most certainly be interested in just that, if these products produced the results they claim.
Secondly, there are production and R&D engineers that combined probably have 100 years of automotive manufacturing experience on just this forum, and they have done all the homework for us, all we have to do is copy it down, and hand it in.
Mark
#7
Melting Slicks
Originally Posted by dcxguy
My rebuilt engine (L79) will be ready soon. I'm accumulating all of the necessary new components (spark plug wires, cap, rotor, etc . . ), but have yet to buy new spark plugs. I saw an ad for Splitifre plugs . . . does anybody use them???
Electricity has no reason to "split" its affections in numerous directions at the same time.
#8
Race Director
Member Since: Oct 2004
Location: Cape Cod, Mass.
Posts: 18,759
Received 4,541 Likes
on
2,157 Posts
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
I tried the splitfires in my 65 L79 years ago. The car felt like it lost low end torque. I did not like them at all. I really like the Bosch Platinum plugs for the car even better than the AC's. The heat range of the Bosch Platimum # 4236 is comparable to the R45 AC. Very responsive and they last forever. Try them. You'll like them.
#10
Burning Brakes
Member Since: Jan 2005
Location: Leavenworth Washington
Posts: 768
Likes: 0
Received 0 Likes
on
0 Posts
The previous owner had put Splitfires in my car. I thought about it, but put in the AC and they worked just fine. Think everyone above pretty much had it right - hype but no real apparent improvement.
#11
Team Owner
I use NGK B4's in my 56 and 64 with excellent results. The B4 is a non resistor plug like the original AC plugs that were specified for our cars. I don't believe that AC has a non resistor plug for our cars anymore, but not 100% sure on that.
#12
Race Director
Originally Posted by JoesC5
I use NGK B4's in my 56 and 64 with excellent results. The B4 is a non resistor plug like the original AC plugs that were specified for our cars. I don't believe that AC has a non resistor plug for our cars anymore, but not 100% sure on that.
Dave..
#13
Race Director
A number of years ago I put Spitfire plugs in my BB in hopes of clearing up some plug fouling and running problems. With open chamber aluminum heads, L-88 intake, high compression, .600 lift, long duration cam, I figured they might be what I needed. The first couple of hundred miles I didn't really notice any difference but then I started getting fouled plugs. Every drive brought on random missing under light load that required I clean the motor out. I pulled, cleaned them and reinstalled and I had random missing again in 40 or 50 miles. Finally installed Accell plugs (about $1.60 a plug - cheap) on the recommendation of a local speed shop and there was immediately a night and day difference. All my driveability problems went away. The plugs have been in the car undisturbed for about 5 or 6 years now and it still runs great. I have a spare set but haven't really had a need to install them. So, based on my experience I would recommend saving your money on the Spitfire hype and get a regular high-quality plug instead.
#14
Instructor
Member Since: May 2003
Location: Lexington KY
Posts: 125
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by DansYellow66
A number of years ago I put Spitfire plugs in my BB in hopes of clearing up some plug fouling and running problems. With open chamber aluminum heads, L-88 intake, high compression, .600 lift, long duration cam, I figured they might be what I needed. The first couple of hundred miles I didn't really notice any difference but then I started getting fouled plugs. Every drive brought on random missing under light load that required I clean the motor out. I pulled, cleaned them and reinstalled and I had random missing again in 40 or 50 miles. Finally installed Accell plugs (about $1.60 a plug - cheap) on the recommendation of a local speed shop and there was immediately a night and day difference. All my driveability problems went away. The plugs have been in the car undisturbed for about 5 or 6 years now and it still runs great. I have a spare set but haven't really had a need to install them. So, based on my experience I would recommend saving your money on the Spitfire hype and get a regular high-quality plug instead.
#15
Burning Brakes
Member Since: Jan 2001
Location: Bonner Springs Kansas... pay no attention to that man behind the curtain. Hay...I know that guy!
Posts: 818
Received 0 Likes
on
0 Posts
We ran them in our ski boat.I like them for the boat.Thay help with low end power,gettin my fat a** out of the water....lol.Ran them for about four years.
#16
I noticed a very significant increase in power and milage after I bought an indexing washer kit and indexed my plugs. Most people never do this.
Take a felt pen and mark the plug insulator on the side exactly inline with where the plug gap is (for later reference). Use the washer that allows you to tighten the plug to the point where the plug gap is facing directly towards the intake valve.
I found out that I only had 2 plugs that were aligned correctly before I got the kit. A couple were facing 180 degrees out of alignment.
This is MUCH more important than which brand of plug you use.
Take a felt pen and mark the plug insulator on the side exactly inline with where the plug gap is (for later reference). Use the washer that allows you to tighten the plug to the point where the plug gap is facing directly towards the intake valve.
I found out that I only had 2 plugs that were aligned correctly before I got the kit. A couple were facing 180 degrees out of alignment.
This is MUCH more important than which brand of plug you use.
#17
Le Mans Master
I bought a set for my 94 C4 and 97 RAM. Both vehicles lost 1mpg using them ! The only good thing was I took advantage of a sale and rebate so only paid a buck apiece. Otherwise never again
#18
Race Director
Originally Posted by iniguy
Are you using A/C R43XLS in your big block?
Dan
#19
Team Owner
Member Since: Oct 2000
Location: Washington Michigan
Posts: 38,899
Received 1,856 Likes
on
1,099 Posts
Originally Posted by iniguy
Are you using A/C R43XLS in your big block?
#20
Race Director
Originally Posted by iniguy
Are you using A/C R43XLS in your big block?
They are Accell #114. They work very well with my L-88 open chamber heads, L-88 intake, forged high comp pistons and .600 lift mechanical cam.
Dan