dsp26
03-10-2008, 08:36 AM
There are Pro's and Cons with these plugs Firstly..
- I Only recommend this for internally UN-modified engines
- People who do not know how to advance distributor timing
- People who do not have a distributor and run on coil on plug, etc...
- ^^^ Pretty much anyone that cannot for some reason change dizzy timing
This only made 2wkw more than NGK Iridiums across the powerband (on my cammed 11:1cr motor) and I have noticed a consistent ~20km increase in mileage over a controlled period of 1 month. Fuel pressure was left at the factory 38psi vac on for the tests and stock internal ignition coil used.
Now because of how it works (plasma discharge) it TECHNICALLY increases ignition timing because of how much faster it ignites petrol.
To understand why... watch this:
http://www.pulstarplug.com/ignition-velocity.html
Because of the above issue... this works the same on 14* ignition timing versus iridiums set at 18*... i actually lost 3wkw by leaving the dizzy timing at 18* for the pulstars. For a modified or cammed engine this will result in poor idle quality which can only somewhat be fixed by turning the idle screw.
Would I use it again?
At ~$25 a plug delivered from the USA... I would only ever use this again when I get a family car thats unmodified.
How is it going now?
I have since put my external LX91 crane cams coil back on with fuel pressure at 40psi vac on and left at 14* timing.... this put the power up an additional 3wkw BUT this was at a different shop (same dyno) and day
OTHER ISSUES:
- I researched these thoroughly previously with some people reporting the ceramic part of the plug breaking off.. apparently this has been fixed and i have been running these for over 3months now and still undamaged.
- There have been many independent tests but most power gains were noticed on v6/v8 and turbocharged engines
- Mazda club had thorough reviews from many members... the MPS's had the most gains while tha NAs gained ~2hp and better mileage
MY OVERALL CONCLUSION
NOT a gimmick. Wether you can justify the expense of them though is up to you, my only other personal issue is that they will only ever pay for themselves and me save money IF they do last 50k miles or 70k kilometres.
Definitely not a first mod to do unless you really have nothing else to spend money on and have the urge to squeeze every little bit out of your engine.
This in my opinion is a far better alternative to Nology HotWires which have the plasma gap in the leads, the issue with the nology wires was that, regardless of them producing power there have been many reports of getting power loss a year later as the actual material gained resistance quickly as large currents constantly flowed on the side after the plasma gap
- I Only recommend this for internally UN-modified engines
- People who do not know how to advance distributor timing
- People who do not have a distributor and run on coil on plug, etc...
- ^^^ Pretty much anyone that cannot for some reason change dizzy timing
This only made 2wkw more than NGK Iridiums across the powerband (on my cammed 11:1cr motor) and I have noticed a consistent ~20km increase in mileage over a controlled period of 1 month. Fuel pressure was left at the factory 38psi vac on for the tests and stock internal ignition coil used.
Now because of how it works (plasma discharge) it TECHNICALLY increases ignition timing because of how much faster it ignites petrol.
To understand why... watch this:
http://www.pulstarplug.com/ignition-velocity.html
Because of the above issue... this works the same on 14* ignition timing versus iridiums set at 18*... i actually lost 3wkw by leaving the dizzy timing at 18* for the pulstars. For a modified or cammed engine this will result in poor idle quality which can only somewhat be fixed by turning the idle screw.
Would I use it again?
At ~$25 a plug delivered from the USA... I would only ever use this again when I get a family car thats unmodified.
How is it going now?
I have since put my external LX91 crane cams coil back on with fuel pressure at 40psi vac on and left at 14* timing.... this put the power up an additional 3wkw BUT this was at a different shop (same dyno) and day
OTHER ISSUES:
- I researched these thoroughly previously with some people reporting the ceramic part of the plug breaking off.. apparently this has been fixed and i have been running these for over 3months now and still undamaged.
- There have been many independent tests but most power gains were noticed on v6/v8 and turbocharged engines
- Mazda club had thorough reviews from many members... the MPS's had the most gains while tha NAs gained ~2hp and better mileage
MY OVERALL CONCLUSION
NOT a gimmick. Wether you can justify the expense of them though is up to you, my only other personal issue is that they will only ever pay for themselves and me save money IF they do last 50k miles or 70k kilometres.
Definitely not a first mod to do unless you really have nothing else to spend money on and have the urge to squeeze every little bit out of your engine.
This in my opinion is a far better alternative to Nology HotWires which have the plasma gap in the leads, the issue with the nology wires was that, regardless of them producing power there have been many reports of getting power loss a year later as the actual material gained resistance quickly as large currents constantly flowed on the side after the plasma gap