How to Make Your Cheap Copper Plugs Perform like a Nology.

[Mini-itx]

OK, I decide to invest in a set of cheap Autolite copper plugs. Side gap them, regap them to 0.88mm (original 1.02mm but side gap must reduce the gap a little). Index the plugs.

 

Fire them up and the low RPM is almost as good as my side gapped Nology plugs. Even better than the stock gapping (Nology run very little gap, I think its just 0.7mm). Denso IK24 at 0.8mm. A bigger gap is always better for power but it will tend to misfire at high RPM or high boost unless you are using CDI.

 

I have yet to test the high end but if you want cheap low end power, just side gap your copper plugs. Life span will of course be shorter since the grounding tip is no longer covering the center electrode. However, you can always regap them after sometime.

 

Just invest in a file and a spark plug gapping tool (to accurately the gap).

 

 

[Minikong]

OK, I decide to invest in a set of cheap Autolite copper plugs. Side gap them, regap them to 0.88mm (original 1.02mm but side gap must reduce the gap a little). Index the plugs.

 

Fire them up and the low RPM is almost as good as my side gapped Nology plugs. Even better than the stock gapping (Nology run very little gap, I think its just 0.7mm). Denso IK24 at 0.8mm. A bigger gap is always better for power but it will tend to misfire at high RPM or high boost unless you are using CDI.

 

I have yet to test the high end but if you want cheap low end power, just side gap your copper plugs. Life span will of course be shorter since the grounding tip is no longer covering the center electrode. However, you can always regap them after sometime.

 

Just invest in a file and a spark plug gapping tool (to accurately the gap).

 

u open a ws? if yes i go and visit u u help me to do?

[Mini-itx]

u open a ws? if yes i go and visit u u help me to do?

 

Lol..... No I don't. I am doing this as a hobby only.

 

Btw, just to add they work for other brands as well. Just I don't know where to buy Denso or NGK copper plugs and I happen to saw an ad on the autolite plugs thus I decide to get them.

[Mini-itx]

http://www.ngkntk.co.jp/english/product/sp...lugs/index.html

 

btw check out this NGK website. See the picture on hwo the flame spreads and how the grounding tip is blocking the spreading. Thats why side gapping helps.

[Vtim]

I thought there are plugs already having side gap, are you referring to those below ?

Edited October 13, 2010 by Vtim

[Vtim]

They are copper plugs with twin ground electrodes.

Edited October 13, 2010 by Vtim