Has anyone gotten PULSTAR pulse-plugs yet? - Page 2 - Toyota Yaris Forums

dallas · 11-14-2008, 01:54 AM

Good find, anyone with turbo or supercharging will benefit even more with a stronger spark. But multiple sparks will shorten the life of the plugs big time.

Marfulion · 11-06-2009, 01:25 PM

Not sure bout what pulstar pulse plugs are, but i can tell you from experience that the ngk iridium plugs really make the throttle feel so much more crisp.

127.0.0.1 · 11-06-2009, 01:46 PM

lol

scam, really.

you can grind and index plain old OEM plugs and get the exact same performance.

a spark is a spark is a spark. you can't -get a better burn- with a different plug. all you might be able to do is avoid indexing them.

test:

take 2 sheets of paper. take one, light one corner with a wooden match, watch it burn

take the other paper, and light one corner with an gas welder. which paper burns better ?

they both burn the same. ditto for your engine

now yeah I know the ignition point of the paper is the same, but can be achieved earlier
with the torch...but the burn is the same...in a gasoline engine, under compression, a feeble spark vs a hotter
one makes no difference in the speed of the flame front or completion of the burn. but the 'index' or 'aim-point' of the sparkplug
electrode makes a difference if they are set incorrectly. that is why sparkplugs have compression
washers, so you can tighten them, and then index them.

if you index the stock plugs properly, they will be exactly as good as any expensive plug.
hence...expensive high-zoot plug is not really doing anything but making
the wallet lighter.

I am not saying peoples results with high-end plugs are false. they may be true. but those results
can be had with any OEM-spec plug that isn't worn, and is indexed properly. often the 'bigger spark'
plugs, or open-electrode plugs, solve problems that exist due to improperly installed normal plugs.

yaris-me · 11-07-2009, 02:46 AM

I don't buy your analogy about the match vs gas welder. The paper would have a faster ignition with the gas welder. I don't buy your feeble spark vs hotter. Why would Ford and Mazda and Mercedes use a double spark plug and why would manufacturer go to individual coils? Why would racers use a hotter ignition system and double spark plugs?

severous01 · 11-07-2009, 03:40 PM

one of the power block shows got 6hp with just the plugs on a dyno.

TheSilkySmooth · 11-17-2009, 06:46 PM

127 is right. Ir are the best plug technology out there. If you run at WOT a lot try one heat range colder - up to a 6. The Bottle and turbo will put you at a 7 heat range or colder. If you what to mod, Bigger coils with big DC feed wires and a slightly larger gap will reduce misfires. Some times when you swap plugs you just luck out with a good index and you get more power.

severous01 · 05-12-2010, 11:01 AM

the only way more spark will help is just that...more spark. and i'm not talking a hotter spark. i'm talking longer travel. the spark ignites more gas through it's travel increasing burn times, reducing time it takes for complete combustion...increasing throttle response and increasing mileage due to the fact that less fuel exits the tail pipe.

but...until ford and chevy actually come out with the iridium tipped pistons and a single sided spark plug with no electrode on it...we're stuck with the ages old technology of a .035 thousandths gap.

11-06-2009, 01:46 PM	#3
127.0.0.1 Banned Drives: '10 Yaris5drHB+99 4runner LTD Join Date: Sep 2009 Location: NE Posts: 672	lol scam, really. you can grind and index plain old OEM plugs and get the exact same performance. a spark is a spark is a spark. you can't -get a better burn- with a different plug. all you might be able to do is avoid indexing them. test: take 2 sheets of paper. take one, light one corner with a wooden match, watch it burn take the other paper, and light one corner with an gas welder. which paper burns better ? they both burn the same. ditto for your engine now yeah I know the ignition point of the paper is the same, but can be achieved earlier with the torch...but the burn is the same...in a gasoline engine, under compression, a feeble spark vs a hotter one makes no difference in the speed of the flame front or completion of the burn. but the 'index' or 'aim-point' of the sparkplug electrode makes a difference if they are set incorrectly. that is why sparkplugs have compression washers, so you can tighten them, and then index them. if you index the stock plugs properly, they will be exactly as good as any expensive plug. hence...expensive high-zoot plug is not really doing anything but making the wallet lighter. I am not saying peoples results with high-end plugs are false. they may be true. but those results can be had with any OEM-spec plug that isn't worn, and is indexed properly. often the 'bigger spark' plugs, or open-electrode plugs, solve problems that exist due to improperly installed normal plugs. Last edited by 127.0.0.1; 11-06-2009 at 04:01 PM.

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11-14-2008, 01:54 AM	#1
dallas Drives: Yaris Hatch /Landrover D2 Join Date: Jun 2007 Location: Canada Posts: 242	Good find, anyone with turbo or supercharging will benefit even more with a stronger spark. But multiple sparks will shorten the life of the plugs big time.

11-06-2009, 01:25 PM	#2
Marfulion Drives: 2008 Yaris Sedan Join Date: Jan 2009 Location: Florida Posts: 34	Not sure bout what pulstar pulse plugs are, but i can tell you from experience that the ngk iridium plugs really make the throttle feel so much more crisp.

11-07-2009, 02:46 AM	#4
yaris-me Learn to Relax Drives: 2007, Meteorite, LB Join Date: Dec 2008 Location: Anaheim, CA Posts: 2,070	I don't buy your analogy about the match vs gas welder. The paper would have a faster ignition with the gas welder. I don't buy your feeble spark vs hotter. Why would Ford and Mazda and Mercedes use a double spark plug and why would manufacturer go to individual coils? Why would racers use a hotter ignition system and double spark plugs?

11-07-2009, 03:40 PM	#5
severous01 Drives: 2008 yaris, stripped, red Join Date: Jan 2009 Location: SE Texas Posts: 977	one of the power block shows got 6hp with just the plugs on a dyno.

11-17-2009, 06:46 PM	#6
TheSilkySmooth Drives: 08 3DR 5M Bayou Blue; 09 Fos Join Date: Oct 2008 Location: New Hampshire Posts: 622	127 is right. Ir are the best plug technology out there. If you run at WOT a lot try one heat range colder - up to a 6. The Bottle and turbo will put you at a 7 heat range or colder. If you what to mod, Bigger coils with big DC feed wires and a slightly larger gap will reduce misfires. Some times when you swap plugs you just luck out with a good index and you get more power.

05-12-2010, 11:01 AM	#7
severous01 Drives: 2008 yaris, stripped, red Join Date: Jan 2009 Location: SE Texas Posts: 977	the only way more spark will help is just that...more spark. and i'm not talking a hotter spark. i'm talking longer travel. the spark ignites more gas through it's travel increasing burn times, reducing time it takes for complete combustion...increasing throttle response and increasing mileage due to the fact that less fuel exits the tail pipe. but...until ford and chevy actually come out with the iridium tipped pistons and a single sided spark plug with no electrode on it...we're stuck with the ages old technology of a .035 thousandths gap.