Spark plug mods - xBhp.com : The Global Indian Biking Community

psr · 08-18-2010, 10:32 AM

A popular mod on Spark plug was the side gapping to let the flame kernel propagate quickly in to the cylinder, to give better combustion of the fuel charge . I am sure Fellow XBHPians will be able to throw more light on this with their Vast knowledge .

Aryan · 08-18-2010, 10:41 AM

General Biking Discussion Approved.

psr · 08-21-2010, 04:01 PM

Quote:

Originally Posted by psr

A popular mod on Spark plug was the side gapping to let the flame kernel propagate quickly in to the cylinder, to give better combustion of the fuel charge . I am sure Fellow XBHPians will be able to throw more light on this with their Vast knowledge .

65 views and not a single comment or interest ?

ROCKRZ · 08-22-2010, 11:43 AM

Quote:

Originally Posted by psr

A popular mod on Spark plug was the side gapping to let the flame kernel propagate quickly in to the cylinder, to give better combustion of the fuel charge . I am sure Fellow XBHPians will be able to throw more light on this with their Vast knowledge .

The topic that you are asking here is a unusual one.. maybe no one has gone to the extent of determining as to how exactly the flame propogates.

actually i doubt if anyone will be able to throw light except the very few pro tuners/ core engine designers.. all the best for the thread.. i am keeping a eye (and ear nose etc etc

) on this thread...

as far as i know, the side gapping will definately help in the flame propogation as it creates a open space for the flame spreading but what i know is competely theoretical.. let the pro tuners comment here..

myselfarvi · 08-22-2010, 12:10 PM

Quote:

Originally Posted by psr

A popular mod on Spark plug was the side gapping to let the flame kernel propagate quickly in to the cylinder, to give better combustion of the fuel charge . I am sure Fellow XBHPians will be able to throw more light on this with their Vast knowledge .

Well . . m also a new bee here.. but as far as I know, flame propagation inside the cylinder is affected mainly by the design of the combustion chamber. . . The more the air-fuel mixture swirls inside the cylinder, before the spark ignites the mixture(without quenching the spark), the better is the combustion. But i still did not understand the exact purpose of side gaping the spark plug. . I dont think it will affect the flame front propagation. Well, i would definitely like to see more replies on this.

psr · 08-23-2010, 06:18 PM

Quote:

Originally Posted by myselfarvi

Well . . m also a new bee here.. but as far as I know, flame propagation inside the cylinder is affected mainly by the design of the combustion chamber. . . The more the air-fuel mixture swirls inside the cylinder, before the spark ignites the mixture(without quenching the spark), the better is the combustion. But i still did not understand the exact purpose of side gaping the spark plug. . I dont think it will affect the flame front propagation. Well, i would definitely like to see more replies on this.

The flame propagation from the Spark Plug is dependent on ,whether it opens into the cylinder or it is shrouded by the ground electrode.I am using this mod in my KB 100 with good effect. For my car I use NGK BP6ET

Here is the link..Performance Unlimited 4-Wheel & Off Road Center - Hartford, Wisconsin - USA Technical Documents

psr · 08-23-2010, 07:41 PM

Here are some Pic of Bosch and NGK side gapped spark plugs.Three Ground electrode is NGK and the four ground electrode is by Bosch. Both are self cleaning.

madhav krishna · 08-24-2010, 08:34 PM

Quote:

Originally Posted by psr

Here are some Pic of Bosch and NGK side gapped spark plugs.Three Ground electrode is NGK and the four ground electrode is by Bosch. Both are self cleaning.

how much do they cost?? Do they have any proven performance??

myselfarvi · 08-24-2010, 10:33 PM

oh... never knew tat side gapping would be this effective... thanks for the info..

psr · 08-25-2010, 10:03 AM

Quote:

Originally Posted by madhav krishna

how much do they cost?? Do they have any proven performance??

They cost between 75 to 130 rupees each,depending on the make.. The NGKs are good .Mainly there is no hesitation while acceleration and both my car and bike idle smoothly. Hence I guess they are working. I also get 0.5 kms extra per litre with my Lancer and on my bike 2 kms extra.

08-18-2010, 10:32 AM	#1 (permalink)
psr Senior Member Join Date: Aug 2010 Location: CHENNAI , TAMILNADU Posts: 2,952	Spark plug mods A popular mod on Spark plug was the side gapping to let the flame kernel propagate quickly in to the cylinder, to give better combustion of the fuel charge . I am sure Fellow XBHPians will be able to throw more light on this with their Vast knowledge . Attached Thumbnails

08-18-2010, 10:41 AM	#2 (permalink)
Aryan Senior Member Join Date: Jan 2006 Location: New Delhi/ Shillong Posts: 18,275	General Biking Discussion Approved. __________________ ...in search of that perfect world - My Travel Blog :)

08-23-2010, 07:41 PM	#7 (permalink)
psr Senior Member Join Date: Aug 2010 Location: CHENNAI , TAMILNADU Posts: 2,952	Here are some Pic of Bosch and NGK side gapped spark plugs.Three Ground electrode is NGK and the four ground electrode is by Bosch. Both are self cleaning. Attached Thumbnails Last edited by psr; 08-23-2010 at 07:46 PM.

Thread Tools
Show Printable Version Email this Page
Rate This Thread
Rate This Thread:

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Read my Spark Plug	sandeepcf	Help Me!	10	01-06-2011 09:53 AM
help me on choosing right spark plug	bhanu.eminem	Help Me!	3	10-04-2010 12:22 PM
Filter and Spark Plug issue on my P180	KA01EE5960	Help Me!	8	02-11-2010 04:05 PM
Performance sparkplugs and spark plug wires	dggopal	Help Me!	3	01-16-2010 10:28 PM
[Help]: Spark Plug and KN air filter	sahajsharma	Help Me!	7	09-11-2009 02:53 PM

08-24-2010, 10:33 PM	#9 (permalink)
myselfarvi Arvi Join Date: Aug 2010 Location: chennai Posts: 31	oh... never knew tat side gapping would be this effective... thanks for the info..

Register Now for FREE!
Are you registered on xBhp yet? If not, do so now and start participating to be able to share photos and experiences with other members. It will also enable to you have a chance to be a part of xBhp contests and roadtrips in the future! Username: Password: Confirm Password: E-Mail: Confirm E-Mail: Birthday: Image Verification I agree to forum rules