Does Spark plug increase performance ??

[Yeobh]

I doubt many who seek solution to their rids problems take the adv from here seriously. The whole situation is getting worse especially with tech matters,with the "blind" and the one who shouts the loudest trying to silent all the others. With such situation, anyone with the the right sense and auto/tech knowledge will ever want to bother to spend time to write and end up being call all kind of names.

[Yeobh]

That's is right, at high rpm, the cylinder pressure is much much higher and the time allow for the spark to jump the gap is very much shorter. If you have the opportunity to hook up the engine to a auto scope you can see at idle rpm the spark spike is much high and when you do a sharp acceleration, the spark spike can easily drop by 30%.

[Mona-vie]

I agreed. A larger gap will always give more power even at high RPM. Only issue is misfiring.

 

however, changing coil and igniter can help to resolve misfiring (of course you need the right ones).

 

If you are more adventurous, you can make you own coil. I rewire my own coil in order to be able to run a 0.35" @ 1.2bar w/o misfiring. Previously the stock coil will not allow me to do that. It will misfire above 4K RPM. Now, its ok. I used a mallory Promaster coil because its an oil filled coil rather than epoxy filled. thus it can be removed and rewound.

 

Of course, the igniter needs to be up to t7 he task as well. Else it may get fried. I use Bosch model 0 227 100 200. Its good.

[Edwardtkh]

i'm driving a latio.. the specs in the service manual is denso iridium x 4 pieces... cost me more than 100bucks for the 4 pieces.. damn ex...

[Mona-vie]

  On 12/23/2010 at 3:54 AM, Edwardtkh said:

i'm driving a latio.. the specs in the service manual is denso iridium x 4 pieces... cost me more than 100bucks for the 4 pieces.. damn ex...

 

Where did you buy it? How come so expensive?? Mine is $60 from MX.......

[Meanmachine]

It really depends on types of car one drive, supposedly, A performance car's spark plug can last up to 100Km subject to wear and tear,

Typical Japs or Korean can last max up to 50Km, Conti car much longer. ( depends on one driving patterns )

 

If your mechanic changed your SP w/o consulting you, dump him, he is out to cheat U, A simple way is to self-diagnose by checking it yourself by visualisation on wear and tear. Gday!

[Bluepica]

How about E3 plugs?

[Mona-vie]

  On 12/23/2010 at 7:13 AM, Bluepica said:

How about E3 plugs?

 

Whats E3 plugs???

 

Just googled about it. nothing special its just a plug with 3 ground electrodes instead of 1. bosch Ir Fusion is another plug with multiple ground electrodes.

Edited December 23, 2010 by Mona-vie

[Tigershark1976]

bro pisces, if FC is the main concern for normal driving in SG, what would be a better gap? larger or smaller? my Toyota recomended 0.08cm gapping while im using 0.09mm now, slightly "overgap" by 0.01mm.... most new sparkplug comes with 0.10cm gapping if i remember correctly (too long nvr buy sparkplug liao... always re-gap)

Edited December 23, 2010 by Tigershark1976

[Tigershark1976]

  On 12/23/2010 at 12:21 AM, Yeobh said:

I doubt many who seek solution to their rids problems take the adv from here seriously. The whole situation is getting worse especially with tech matters,with the "blind" and the one who shouts the loudest trying to silent all the others. With such situation, anyone with the the right sense and auto/tech knowledge will ever want to bother to spend time to write and end up being call all kind of names.

 

 

yalor.. thats y its better to counter check by google whenever im not very sure.

[Celicar]

  On 12/22/2010 at 4:18 AM, Blitz6511 said:

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

 

You got roberted dude.

[Pisces69]

  On 12/22/2010 at 11:34 PM, Tigershark1976 said:

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....

 

That is known as;

 

 

THE BLIND LEADING THE BLIND.

 

 

Hahaha

 

[Pisces69]

  On 12/23/2010 at 12:42 AM, Yeobh said:

That's is right, at high rpm, the cylinder pressure is much much higher and the time allow for the spark to jump the gap is very much shorter. If you have the opportunity to hook up the engine to a auto scope you can see at idle rpm the spark spike is much high and when you do a sharp acceleration, the spark spike can easily drop by 30%.

 

Yes im sure.

 

Unfortunately during my time, we dont hv much of e advanced diagnostic tools we hv today.

 

All was tru hard earned experience n some trial n error. But it was fun n when we solved a difficult problem, e satisfaction was priceless.

 

 

 

[Pisces69]

  On 12/23/2010 at 2:37 AM, Mona-vie said:

I agreed. A larger gap will always give more power even at high RPM. Only issue is misfiring.

 

however, changing coil and igniter can help to resolve misfiring (of course you need the right ones).

 

If you are more adventurous, you can make you own coil. I rewire my own coil in order to be able to run a 0.35" @ 1.2bar w/o misfiring. Previously the stock coil will not allow me to do that. It will misfire above 4K RPM. Now, its ok. I used a mallory Promaster coil because its an oil filled coil rather than epoxy filled. thus it can be removed and rewound.

 

Of course, the igniter needs to be up to t7 he task as well. Else it may get fried. I use Bosch model 0 227 100 200. Its good.

 

Ya we used mallory a lot as it was 1 of e better types around. But there is only so much u can gain with higher output coils etc. Reliability was an issue too. Nothing beats those big oil filled coils fr better sparking.

 

And those times we were mostly using contact points. We had a electronic stabiliser which helped to reduce e pitting on e points but u can only do so much wh contact points.

 

We were very happy when electronic ignition systems came on e scene.

 

[Yuan]

  On 12/22/2010 at 2:25 PM, Pisces69 said:

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.

 

You are one of them.

[Pisces69]

  On 12/23/2010 at 11:05 AM, Tigershark1976 said:

bro pisces, if FC is the main concern for normal driving in SG, what would be a better gap? larger or smaller? my Toyota recomended 0.08cm gapping while im using 0.09mm now, slightly "overgap" by 0.01mm.... most new sparkplug comes with 0.10cm gapping if i remember correctly (too long nvr buy sparkplug liao... always re-gap)

 

I tell u what. U want a car that gives u long trouble-free use, just stick to manufacturers specs.

 

Ty know better n u changing 1 setting usually affects another so u wil eventually end up wh so many problems, most mechs wont know how to diagnose.

 

Just go back to what e manufacturer done.

 

Fr yr plugs, just buy e recommended plug n its gap is already set fr u. Use it straight fm e box.

 

U want better FC? Stick to factory specs n always only use original or good OEM parts. Well known good oils n fluids when u service. Check tire pressure every week fr proper inflation. Get rid of all e heavy, unnecessary junk[deadweight] in yr car. Oh n find a good n honest mech n hold on tight to him.

 

I did get better fc fm abt 10- 11km/lit to now high 13 to low 14km/lit after i did a DIY 5 point grounding though. Cost <$10.

 

Stay away from all those gimmics n gadgets out there. Most do nothing at all n some even cause damage.

 

 

Good luck.

[Tigershark1976]

  On 12/23/2010 at 1:56 PM, Pisces69 said:

I tell u what. U want a car that gives u long trouble-free use, just stick to manufacturers specs.

 

Ty know better n u changing 1 setting usually affects another so u wil eventually end up wh so many problems, most mechs wont know how to diagnose.

 

Just go back to what e manufacturer done.

 

Fr yr plugs, just buy e recommended plug n its gap is already set fr u. Use it straight fm e box.

 

U want better FC? Stick to factory specs n always only use original or good OEM parts. Well known good oils n fluids when u service. Check tire pressure every week fr proper inflation. Get rid of all e heavy, unnecessary junk[deadweight] in yr car. Oh n find a good n honest mech n hold on tight to him.

 

I did get better fc fm abt 10- 11km/lit to now high 13 to low 14km/lit after i did a DIY 5 point grounding though. Cost <$10.

 

Stay away from all those gimmics n gadgets out there. Most do nothing at all n some even cause damage.

 

 

Good luck.

 

dont think "out of the box" sparkplug is pre-gapped for all engines. Some spark plug like denso normal copper sparkplug (K16RU), which is recomended by Toyota owner manual is pre-gapped at 1mm, which is a big diff frm the recomended 0.8mm gap.

 

But guess u r right, i will maintain the gap at 0.8mm as recomended by the toyota.

 

[Pisces69]

  On 12/23/2010 at 11:05 AM, Tigershark1976 said:

bro pisces, if FC is the main concern for normal driving in SG, what would be a better gap? larger or smaller? my Toyota recomended 0.08cm gapping while im using 0.09mm now, slightly "overgap" by 0.01mm.... most new sparkplug comes with 0.10cm gapping if i remember correctly (too long nvr buy sparkplug liao... always re-gap)

 

I think sud b mm bro.

 

And do change new plugs as recommended by manufacturer. Copper plugs r dirt cheap n tysay e easiest n cheapest tune-up is a new set of plugs.

 

Old plugs can leak, ceramic crack n metal fatigue which wil affect yr fc n power.

 

I change my copper plugs[dirt cheap] every 20k km even though ty r still as smooth as when new. I dont re-gap at 10k km cos when u remove, e crushable washer might not give u a good seal when u re-install.

 

Also air blow yr air filter every 10k km service n change at 40k km as recommended. This also affects yr FC. Change more often if u always drive in dusty areas.