Does Spark plug increase performance ??

[Enforcer533]

Just my few cents worth of comments

 

I've changed new normal spark plugs to Denso Iridium -- my take is that iridium plugs does provide a more `brisk' feeling when u accelerate and it stays this way a lot longer than normal spark plugs

 

I do not think there is any increase in power but it does provide a more efficient comnustion in yr engine, thus giving a feeling of more power

 

I am currently driving a Forte 1.6 manual and very pleased on the change to Iridium. After using this, when I change back to normal plugs, there is a lack of oompp....

 

 

Hey i had the same ride as u accept it is Auto lol..

Manual sure got more kick then boring Auto '

[Zenith_Mazda]

for certain models yea. 100k. e.g those used on nissan latio. but normal iridium ones 40k nia.

[Usui_takumi]

Spark plugs won't do anything to improve your HP...

[Mona-vie]

Just my personal view on spark plugs. I did try out a few plugs before. AFAIK, it doesn't work. it does feel smoother when its brand new, but after a short while the feeling is gone.

 

I did one experiment before. I used a set of Denso Iridium plugs for 2 weeks. Then swap in a set of normal copper plugs. by right, i should feel the car getting weaker since iridium is supposed to have more powerful spark so more power etc....

 

But no, I in fact felt the engine slightly smoother with the brand new set of copper plugs... Lol.... can't explain why but new plugs is like new oil, always make car feel better for a short time.

 

I guess the main thing about more expensive iridium plugs is how long it can last rather than how much performance it can give.

[M3taph0r]

hi peeps!

[Blitz6511]

TRy OWS plug. Very good .4 pcs $120.

[Mcf777]

i just realized changing a new set of car bettery also power-up the whole car.

the car felt very strong and eager to rev up

[XALmoN]

Bigger gap means larger spark and more fuel combuster...

 

So its not the plugs, but the gapping.. I use copper plugs, i see no issue with those.

[Good-Carbuyer]

Bigger gap means larger spark and more fuel combuster...

 

So its not the plugs, but the gapping.. I use copper plugs, i see no issue with those.

You got the point. You are right. Many others still do not seem to appreciate this is more useful than the material used for electrodes I only use copper electrode spark plugs)

[Good-Carbuyer]

TRy OWS plug. Very good .4 pcs $120.

If you mean 4 pieces at $120/-, I believe I am not likely to buy any even with 90% discount (money not enough)

[Pisces69]

Just my personal view on spark plugs. I did try out a few plugs before. AFAIK, it doesn't work. it does feel smoother when its brand new, but after a short while the feeling is gone.

 

I did one experiment before. I used a set of Denso Iridium plugs for 2 weeks. Then swap in a set of normal copper plugs. by right, i should feel the car getting weaker since iridium is supposed to have more powerful spark so more power etc....

 

But no, I in fact felt the engine slightly smoother with the brand new set of copper plugs... Lol.... can't explain why but new plugs is like new oil, always make car feel better for a short time.

 

I guess the main thing about more expensive iridium plugs is how long it can last rather than how much performance it can give.

 

 

I believe that if e car came out fm e factory wh copper plugs, ty r good fr e car. Same as those long life iridium etc plugs. If e car was designed fr copper or iridium, then stick wh e original plugs.

 

Long life plugs r best fr cars wh plugs which r very hard to access to change. Some even need special tools to change. Like that long life plugs r more practical.

 

I only use original copper plugs n change every 20k km n ty feel abt as good fm e 1st day till e last.

 

But u must also check yr plug cables n ignition coil/distributor regularly as if these r faulty, ty can cause e same feeling as yr plugs r faulty. Even wrong fuel mixture can hv similar symptoms.

 

1 thing i noticed was that when i grounded my engine block, i got smoother engine n better fc. So there r many things which affect yr power but not all cars r e same. Some pple feel no difference after grounding.

[Pisces69]

hi peeps!

 

 

Hi

 

R u new here? If so, welcome to MCF.

 

Feel free to post yr questions n vews n we wil try to help as there r many gurus here who can help u.

 

Cheers.

[Pisces69]

i just realized changing a new set of car bettery also power-up the whole car.

the car felt very strong and eager to rev up

 

 

Maybe less current fm alternator going to charge battery so more current to e spark plugs?

[Pisces69]

Bigger gap means larger spark and more fuel combuster...

 

So its not the plugs, but the gapping.. I use copper plugs, i see no issue with those.

 

A bigger gap is good fr idling n normal driving but fr high revs[near redline], A smaller gap is better.

 

[Tigershark1976]

A bigger gap is good fr idling n normal driving but fr high revs[near redline], A smaller gap is better.

 

 

bro, i tot its another way round? smaller gap should be better for smoother ride + beter low end and bigger gap is better for high end? Thats what i learn in VOGS....

 

 

 

edit: u r right, what i learn from VOGS is not correct...

http://www.custom-car.us/ignition/spark-plug/gap.aspx

Edited December 22, 2010 by Tigershark1976

[Tigershark1976]

Hi all

 

 

I heard alot of rumours that when you change a spark plug it

increase your engine power is it true ? i had a friend who change

to denso iridium sparks on his vios and he feedback to me that his car

feels more powerful. i seriously had doubt in it. can some kind souls

share his expierence when change to denso plugs ^^

 

 

I doubt your friend could feels anything.

 

i tried all sort of spark plug, be it iridium or platinium, its feels the same for daily use in SG and now, im gg back to copper.... I gap my sparkplug every 20K and i believe my current set of copper spark plug should last me until my car is scrap at 10th yrs (est 250,000km)

 

The only time i can felt the diff is when i was using platinium spark plug with aftermarker sparkplug cable which is extremely thick. My Elantra is more willing to increase the speed faster from 160km onwards... of cos, thats just my butt dyno and it could be wrong...

[Pisces69]

bro, i tot its another way round? smaller gap should be better for smoother ride + beter low end and bigger gap is better for high end? Thats what i learn in VOGS....

 

edit: u r right, what i learn from VOGS is not correct...

http://www.custom-car.us/ignition/spark-plug/gap.aspx[/quote]

 

Aiyah... Why u waste yr time at VOGS. What do they know. U want to know anything, just ask me. Hahaha.

 

No lah. Just kidding, but long ago when i used to race, we always try to run on e smallest gap possible to improve our high-end performance.

 

When u run slow, a big gap is good fr a big bright spark, but at high revs, u misfire if gap is too big cos there is not enough high voltage to get a spark to jump a big gap.

 

But small gap gives very rough idling n poor sparking[n combustion] at normal speeds.

 

[Tigershark1976]

haiz... thats the problem with forum... when 1 guy say smth wrong, nobody corrected wat he say, newbird will believe... when there r more n more people believe, even the wrong theory becum fact....