Anybody used them? Is it worth the cost?

 

Never heard of them. A quick google search yielded the following site http://www.pulstar.com/

On their site it states, "Until now, every gallon of gas you bought was ignited by a simple spark plug- an outmoded technology that has barely changed in 100 years. But now you can change to a new eco-friendly pulse plug that uses an advanced technology to make every drop of gas burn better and cleaner." I'm a little weary of the claim being "eco-friendly" as that is sometimes simply a gimmick to sell a product.

 

Yeah I looked at their site already, I just wanted to know if anybody had used them yet

 

I'm curious to hear more about these plugs too. I'm also skeptical because generally, as long as the stock plugs are igniting the mixture, nothing that you do as far as higher voltage or multiple sparks will make the mixture burn any better/faster or more completely.

 

In my GM world it's snake oil. Dyno proven.

 

I have a set that I forgot about with about a hour of run time on them, anyone can have for the price of shipping. They are still new in original packaging. My car would not run right with them.

 

i wouldn't use them from what i've seen. i came across this:

http://forums.evolutionm.net/evo-eng...uaranteed.html

given i don't know the engine environment like A/F or timing. maybe he had some bad detonation. but he does state he had no problems with stock plugs in the same environment.

either way its not worth the risk to me. i think its a gimmick to get you to pay way too much money, just like those multi ground strap plugs(bosch +2 and +4)

 

Sorry to be negative but for the most part I believe that designer spark plugs are a waste of money. These things might help if the engine is a worn out oil burner or in some state of disrepair. I'd venture a guess that an X-Ray of this plug would show an air gap inside the insulator to artificially increase the voltage of the spark. JC Whitney used to sell some plastic attachments that went on each spark plug to do the same thing. An old trick to clear up a fouled plug is to pull the wire and hold it about 3/8" to 1/2" away from the plug to increase the voltage to it in an attempt to burn through the carbon. Had to use that trick on my KZ1000 before I got the carbs straightened out.
[EDIT]Just looked further into their web site. It does have an air gap...DUH
For $25 each you could get a multispark MSD box (or similar) if there is such a device available for mulitipoint ignition systems.
I'd just as soon spend the hundred bucks on gas. At least it would go way further that any savings those things could provide.

 

Here is a dyno plot on a 2006 350z roadster with 1200km done on a close friends dyno.



The stock plugs were remove, and the pulstars put in, the car had intake and exhaust and that was it for mods. (blue line is plustars green is stock)

The general consensus was that the plugs caused an advanced timing state, which is what caused the power increase, not so much the plugs themselves.

However they were also tested on a s2000 with intake header and exhaust and 0 gains were made.

Take this info for what it is worth, this is all I remember the tests were done a while ago and I do not remember the full details so don't ask me for more info.

 

I've been running Pulstars (now Iridiums) for two years in my cars. Put them into newly acquired 2006 MCS convertible last March and have run 7,000 miles since. The car runs beautifully as expected. I have averaged 28 MPH with this convertible with mostly city driving, even though it is rated 21/29 city/hiway.

The plugs have a heat range of 7, which accommodates the 15% pulley/CAI/Evotech ECU tune - installed last week. Didn't touch the plugs, and car runs great - as expected - maybe better than expected.

You have to gap at 0.025 to 0.027 inch, or less than 0.030 to prevent S/C from blowing out the spark. You also have to install the plugs without touching/cracking the fragile porcelain plug jacket with the socket, so you use a socket without the rubber.

Enerpulse predicts about 4% torque/HP gain with these. I guess it ranges from 2% up to 10% depending on the car. Sure a lot cheaper than $1,000 on exhaust that may gain at most 5-7HP, and then only over 4,500 RPM. I didn't do the exhaust because I didn't want to spend money mainly for unwanted noise.