Pulsing Spark Plugs - Page 2 - Fuelly Forums
Go Back   Fuelly Forums > Fuel Talk > General Fuel Topics
Search Today's Posts Mark Forums Read
Thread Tools Display Modes
Old 06-18-2007, 06:57 PM   #11
Registered Member
GasSavers_bobski's Avatar
Join Date: May 2007
Posts: 463
Country: United States
Originally Posted by SVOboy View Post
I believe honda is using dual plugs in the new HCH
Right. The current model Civic hybrid does infact use 2 plugs per cylinder... If you pop the trim cover off, you can see the eight ignition coils bolted to the valve cover.

GasSavers_bobski is offline   Reply With Quote
Old 06-18-2007, 07:25 PM   #12
Registered Member
Join Date: Oct 2006
Posts: 303
Country: United States
Nissan also built a bunch of dual plug engines. That was back when they even did it with a distributor. It was mostly for emissions, I thought. Almost all aircraft engines run dual plugs. They have large open combustion chambers and dual plugs helps pevent detonation and get the fire done sooner. Aircraft engines generally test pretty good for specific fuel consumption too considering the antiquated appearance of the combustion chamber designs.

Years ago Champion sold a plug with an auxiliary gap up in the ceramic insulator that allowed the ignition to build to a higher voltage before it fired. This plug should be compared with the old auxilary gap design and then tell us how much better it is. It just looks like too much for too little to me.

edit: I cannot find a description of the Champion plug on the net. Often times pulling the plug wire back from a fouled plug and having it arc to the plug would get the plug to fire.

Speaking of plugs, here is an Idaho invention that has run in quite a few engines, even airplanes. It appears derived from model air plane glow plug technology.


This started out so promising and now nothing for several years.

usedgeo is offline   Reply With Quote
Old 06-19-2007, 08:23 PM   #13
Registered Member
bzipitidoo's Avatar
Join Date: Jan 2007
Posts: 112
Country: United States
I saw an ad for those Pulstar plugs in Popular Mechanics (or maybe Popular Science). I'd view it with a healthy amount of skepticism. Like all these sorts of things the ad is carefully worded with highly selective facts. I'd find it more convincing if some truly independent labs had some positive results to report.

This reminds me of another magic spark plug company, back in the '90s. Their pitch was that spark plugs were not much more advanced than matches. And they were going to improve power and economy with precision sparking. They got some press, but then they vanished, and as far as I know without ever having produced a product.
bzipitidoo is offline   Reply With Quote
Old 06-20-2007, 11:12 AM   #14
Registered Member
VetteOwner's Avatar
Join Date: Mar 2007
Posts: 1,546
Country: United States
hmm my truck is a picky one. it does not like any other plugs besides the expensive $6 a pop delco plugs...if i use anythign else it runs like crap or has no power
VetteOwner is offline   Reply With Quote
Old 01-23-2008, 01:35 PM   #15
Registered Member
michaelwoodcock's Avatar
Join Date: Nov 2007
Posts: 26
Country: United States
Send a message via AIM to michaelwoodcock
at the claimed gains, you might as well start by side gapping and keying your current plugs. That might bring your mileage up enough!

i might go for the on top of the plugs type one, so that i can re use it with cheap spark plugs. My guess is that the spark comes immediately, with 100% rather than with like, 50% for a longer time.

i guess it could be condidered an ignition system change, since it is before the spark producing parts.

i will get the on top of the spark plug ones, some plugs, and see if it is really worth it. The plugs are not worth it to me, but since i only need one of the spark plug toppers, and a new plug, that might be worth it!
michaelwoodcock is offline   Reply With Quote
Old 01-23-2008, 02:32 PM   #16
Registered Member
Snax's Avatar
Join Date: Mar 2007
Posts: 758
Country: United States
Ok, doing a little math for myself on this one:

$25 x 4 cylinders = $100 investment

At 12,000 miles per year and $3.00/gallon, assuming I get a baseline of 30.0 mpg average, that's $1200/year for fuel.

If this device provides just 2% improvement, then my mpg would be 30.6 mpg, costing me $1176/year - a savings of $24 (8 gallons). So it would take just over 4 years to have these payback on the investment.

That seems like a rather long time for something with questionable benefit - which is going to hinge on the efficiency of the existing stock system. Of course if one drives further and will realize a greater FE improvement, they become more practical.

I would not rule out the benefit of these things however, as I have seen the improvement an MSD system can provide just to idle speed and quality. It's also reasonable to assume that auto makers might omit something like this due to the extra cost involved if it didn't bear out on a sales basis.

They probably do help. Anybody who's read more than a couple of threads here knows that every little bit eventually adds up to something significant, and even a 2% improvement adds to the bottom line.

Oh, and the plug-toppers are the smart money. Why would anyone want to throw out $25 plugs??

I think, therefore I doubt.
Snax is offline   Reply With Quote
Old 01-25-2008, 08:48 AM   #17
Registered Member
kamesama980's Avatar
Join Date: Nov 2007
Posts: 742
Country: United States
Location: Columbus, IN, USA
Send a message via AIM to kamesama980 Send a message via Yahoo to kamesama980
well my post didn't post or got lost in the electrons...so here it is again.

I have Pulstar plugs (friend working there, no I won't tell you who). Going from good plugs to them is like going from old worn out plugs to brand new ones. mild gains in idle quality and torque. I change stuff in my car all the time so it's hard to track FE of any one thing.

1991 Toyota Pickup 22R-E 2.4 I4/5 speed
1990 Toyota Cressida 7M-GE 3.0 I6/5-speed manual
mechanic, carpenter, stagehand, rigger, and know-it-all smartass
"You don't get to judge me for how I fix what you break"
kamesama980 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Oregon-Washington: Winter gas ending, summer gas formula starting? 740dan General Fuel Topics 5 02-26-2013 09:17 PM
miles between fuelup limit? drnknmnky13 Fuelly Web Support and Community News 6 09-14-2010 03:08 AM
Text box for the odometer? codemunky Fuelly Web Support and Community News 1 09-03-2008 12:12 AM
Automatically add the 9/10ths of a penny on to the gas price Saiyaman156 Fuelly Web Support and Community News 1 08-10-2008 01:23 AM
Drafting behind a Truck GasSavers_roadrunner Hypermiling 20 12-23-2006 11:17 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -8. The time now is 06:39 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.