was looking through a magazine and came across these plugs.
http://www.pulstarplug.com/index.html
any of you guys ever seen these? pretty pricey dont know if they would be worth it but seems pretty cool. not sure if the power gains would be quite what they claim.

Snake oil.

Sorry to be blunt but there have been a zillion different new spark plugs and wires over the years and none of them have proven to make any more horsepower over a new properly selected conventional plug.

Spark plugs don't make power, burning fuel and air does. As long as the spark is strong enough to light off the mixture in the cylinder reliably it doesn't matter how much over kill you hit it with -- if it only takes 50 watts to light off a cylinder what difference does it make if you light it off with 10 billion watts. By the way, where does that 1,000,000 watts of energy come from that they claim? I know my ignition system cann't produce that much energy.

I read pretty much the entire website and didn't see anything that convinced me these plugs were worth trying. Lots of flashy graphics and no meat and potatoes about the science involved.

the only thing i saw with any reason behind it was the video of how much faster the mixture ignited compared to a conventional spark plug. not saying i beleive it just wondering if anyone here knew anything about it.

Wonder how the MSD system impact this plug, sounds pretty much of the same "prolonged spark?"

68BigBlock, if you do a search on this, the topic has been discussed before. A multiple spark ignition will do more for you. The plugs are large. I even went as far as to email them. I have a hard time with #1 cylinder when it comes to replacing a standard size plug and these plugs are larger than a standard R45TS. With headers you are going to have problems. Not to mention the fact that they are going to have to be replaced. Just buy a MSD(analog), Crane Hi-6(digital), or even the digital MSD box and be done with it. The ignition boxes are perminent(to an extent).

On a side note, I have started using the AC Delco Rapidfire plugs and they are the ABSOLUTE BEST plugs I have ever used, PERIOD. The car runs, idles, and has more power than any plug before it. IMO, they are the best plugs to use.

I have played around with plugs in my Camaro over the last few years and you know what plug made the best power and lasted the longest?

Good old fashioned Autolite extended tip plugs. $1.19 each.

PS. If they do ignite the fuel faster (don't believe it personally) then you need to compensate by retarding your ignition advance a corresponding amount. That is, unless the timing was off to begin with.

Eric you have found out the same thing I found out, the cheap everyday Autolite plugs you can buy at walmart do the same thing as the autolite racing plug. I am using the MSD HVC module and it produces the blueist and fatest spark I have ever seen. It gets the plug hot enough that with the car doing nothing but sitting in the garage idling whch should turn the whole plug black, doesn't even happen. The porcelin is black but the end of the electrode is as shinny as a new quarter. This thing would spark under water for sure!! Why "try" something when a proven performer is already available.

BEE-Beep!!

My BS indicator went off!

You want to gain an edge w/ plugs..........

Fwiw, I like Autolite's in my SB's. Cheap old-fashioned, extended reach resistor jobbers and if you want to up them, then file the ground electrode back until it is even w/ the outside edge of the center electrode and spend some time using washers to "clock" them so they point right in the chamber!

Please take the time to look over the plugs they sell for lawnmower engines and you will see how they cut back the ground strap like I'm talking about here!!

It let's MORE of the spark "kernel"/"ball" see more of the large part of the chamber upon firing.

pdq67

Eric you have found out the same thing I found out, the cheap everyday Autolite plugs you can buy at walmart do the same thing as the autolite racing plug.

Pssst. Don't tell anyone . . . a friend of mine tried the "cheap" Autolites on the dyno and gained 6 HP over the high Dollar racing plugs. Seriously, he tried NGK racing plugs first and cause I kept bugging him he tried the Autolites. This is the same guy that won Drag Week NA small block class in 2007.

If you can use an extended tip plug (sometimes you cannot because of dome pistons or heat ranges) they have a better firing location (closer to the center of the combustion chamber) and can make a little better power under the right circumstances. They stay cleaner too.

if you want to up them, then file the ground electrode back until it is even w/ the outside edge of the center electrode

Ha, cutting back the plugs makes it throw all kinds of spark! Works gooood IMHO!

trust me im not planning on using these. just curious. i run AC's and havent had a problem ever. the cost on those plugs could never offset the performance gains. for 150 bucks i could find power elsewhere. just thought it was interesting. you guys know your stuff:yes:

trust me im not planning on using these. just curious. i run AC's and havent had a problem ever. the cost on those plugs could never offset the performance gains. for 150 bucks i could find power elsewhere. just thought it was interesting. you guys know your stuff:yes:
Whew! You had us worried.

Well, it's a good discussion anyways . . . I always found those gadgety things interesting -- especially the way companies market them.

Back to plug indexing. How exactly is this done? I want to try it, but I've always heard it doesn't benefit a street engine. How do I do this little trick?

This one is Ford but it has pictures:

http://www.fordmuscle.com/archives/2000/07/indexplugs/

I indexed mine, didn't buy the washers or anything just found the best one for each cylinder out of the ones I had.

I indexed mine last year, for the strip. A pain in the ass and my engine was still out of the car. And I have no way to know if it helped or not. My car was new to the strip after 35 years! That's kind of a long time for a base-line. I'm not gonna worry about it next time.

The technique for indexing plugs is pretty straight forward. You buy a kit with different thickness washers in it (usually there are three different thicknesses) and you mark the plug on the outside to show where the electrode is. Then you experiment with different washer combos until the electrode is pointing down toward the piston -- preferably slightly towards the exhaust valve.

Not sure how much HP (if any) indexing is worth, have read that maybe a couple HP tops (like 1 or 2 HP)

Sorry to roil the masses but I couldn't get Autolites to last over a couple of weeks. I switched to Splitfires and havn't changed since. We are talking years.

not bashing autolights because im sure they run fine in these older engines. but i have seen alot of problems with them in newer engines. at least in the ls motors, they seem to be pretty picky. any one else run into the problems? i cant tell you how many people come through work wanting to return the autolights because they ran bad. then again some of the people i deal with arnt to bright.

Bosch platinum is the worlds worst in engines that I have experienced over the last 15 years at the dealership. From what I have found is that the ignition systems in vehicles are setup for the resistence of their plug or the one the vehicle came with originally. If the plug is changed to X brand because they didn't want to spend the money on the correct part the majority of the time a problem will develop shortly there after. GM runs best on AC's, Chryslers on Champions and Fords on Motorcraft/Autolights. This is not refering to most of our cars that have after market ignition systems or components on them. I have seen this less over the last 6-7 years but in the 90's, we really had a problem.

Sorry to roil the masses but I couldn't get Autolites to last over a couple of weeks. I switched to Splitfires and havn't changed since. We are talking years.

Interesting. Same heat range and same type plug?

I played with a bunch of plugs and compared brands in the same heat range. I found the Autolite 3923 or 3924's stayed clean the longest followed by NGK (FR4 or FR 5) then the AC Delcos. Accel were crap IMO. The NGK racing # 8 (not extended tip) fouled on the street (you couldn't tell by looking at them either) and caused weird break up problems in the upper RPMs. Other than those I never messed with anything weird or exotic.

PS. I don't know how a spark plug can tell the difference between a Ford or a Mopar or a Chevy! I think sublte differences in heat range or design are what makes one work better than the other moreso than brand.

I played with a bunch of plugs and compared brands in the same heat range.

Did you ever test out Champion plugs? I have been running the same plugs, well, since my 383 first fired in like '02 so maybe 30k+ miles. I have twelve RC12YC plugs and I've probably rotated a couple in/out. I dunno, maybe I should buy some new ones??

I thought we were talking about plugs for our OLD engines??

pdq67

Did you ever test out Champion plugs? I have been running the same plugs, well, since my 383 first fired in like '02 so maybe 30k+ miles. I have twelve RC12YC plugs and I've probably rotated a couple in/out. I dunno, maybe I should buy some new ones??

Not in my car -- we used them in a friend's car and they fouled quickly. BUT they were the ones recommended by the cylinder head manufacturer and they were STONE cold.

Accel were crap IMO.

I had a bad experience with the Accel "shorty" header spark plugs right after installing my headers. I put my Autolites back in and the problem went away. Also, header clearance wasn't an issue with the full length Autolites. The only reason I tried the Accel's was I thought I might have header clearance issues. Oh well, live & learn...

I have been running the same plugs, well, since my 383 first fired in like '02 so maybe 30k+ miles. I have twelve RC12YC plugs and I've probably rotated a couple in/out. I dunno, maybe I should buy some new ones??

Damn Paul, I'd bet you'd pick up 3 mph with some good plugs! Just kidding but I think you should splurge before you go out again. I probably change my plugs too often. I usually run Autolite 3924's. Last week Checker only had 1, they checked other stores and they didn't have any. I went to NoCustomerService Zone and they only had 6. I used Motorcraft's equivalent because I've heard they are identical to Autolites. They are not identical but my car ran good last Friday night. I guess I'll start ordering plugs from rock auto.

Damn Paul, I'd bet you'd pick up 3 mph with some good plugs! Just kidding but I think you should splurge before you go out again.

I dunno, $10 for new plugs that's a lot of money, LOL! Maybe I'll pick up some new RC12YC plugs....I'm gonna get my car running right one of these days! On a side note, I did improve on my reaction times, .018, .012, .020....but not as good as your .007 the other day.

Ha, my took my girls with me on Friday!! They filmed a couple of my passes....you can see my car for at least two seconds on each pass, LOL!

Hey guys, I tried lots of different plugs on my 68 396, and so far the best for me was the AC delco rapid fire and these were also indexed. car fires instantly,idles like a dream,and has the punch when I need it without breaking down at high rpms. On a side note, I also have a 71 454 Corvette which didn't like the AC's,or the champions, or the bosch,or the splitfires but runs like a bear with the Autolites. go figure.

another bs spark plug gimmick, i like the autolite, done some test in 1979 on a champion plug testing machine which put up to 200 psi and 1000 to 11000 rpm sweeps on all plug brands, best plug by far was the autolite, but i use other plugs too, i use ngk on blown alky stuff cuz i can see how hot my chambers are by seeing how many threads of the anodizing is burned away, 1 thread or less=semi fat, safe 2 = hot making power 3= super hot crazy power if she makes it all the way down were gonna win but we need a new motor.

another bs spark plug gimmick, i like the autolite, done some test in 1979 on a champion plug testing machine which put up to 200 psi and 1000 to 11000 rpm sweeps on all plug brands, best plug by far was the autolite, but i use other plugs too, i use ngk on blown alky stuff cuz i can see how hot my chambers are by seeing how many threads of the anodizing is burned away, 1 thread or less=semi fat, safe 2 = hot making power 3= super hot crazy power if she makes it all the way down were gonna win but we need a new motor.
:thumbsup:

Damn Paul, I'd bet you'd pick up 3 mph with some good plugs! Just kidding but I think you should splurge before you go out again. I probably change my plugs too often. I usually run Autolite 3924's. Last week Checker only had 1, they checked other stores and they didn't have any. I went to NoCustomerService Zone and they only had 6.

I broke down and bought some of those fancy Autolite 3924 plugs...Checker had some and Napa had some, got sixteen at a buck thirty nine each. New plugs are gapped, cut back and indexed ready for the next race night!