Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: ted_one on 26 July 2013, 20:27:10

Title: Short or long spark plugs?
Post by: ted_one on 26 July 2013, 20:27:10

Hopefully someone can clear up a point about spark plugs for the 3.2,have been given a choice of short or long,never gave it a thought before.....a plug is a plug I thought :-\ Advice on the best choice would be apreciated :y

Title: Re: Short or long spark plugs?
Post by: tunnie on 26 July 2013, 20:36:46

Short, long life not worth extra. GM's standard twins will do just fine  :y

Title: Re: Short or long spark plugs?
Post by: ted_one on 26 July 2013, 20:45:32

Thanks Tunnie,that's cleared that up :y

Title: Re: Short or long spark plugs?
Post by: JamesV6CDX on 26 July 2013, 21:22:58

I always use long life quads in a 3.2, they are the correct part no for the car. Twins will work fine though :y

Title: Re: Short or long spark plugs?
Post by: TheBoy on 26 July 2013, 21:52:04

I use twins and change them at about 25k-30k normally. Quads need tightening about then anyway, and sheild the spark more

Title: Re: Short or long spark plugs?
Post by: 05omegav6 on 26 July 2013, 22:06:08

Only ever quads over here, and I bin them after 20k :y only used twins once, they were in the car for 2k tops :-\ Not saying they caused my misfire problems, but I have yet to destroy a quad plug :-X

Title: Re: Short or long spark plugs?
Post by: Marks DTM Calib on 26 July 2013, 22:17:07

I would always advise twins for the follwoing reasons

1) There cheaper.
2) They shield the flame front less (hence mixture easier to ignite).
3) Quads are the same plug with two extra electrodes, this gives a theoretical longer life and nothing more.
4) Quads require tightening after around 30-40k miles
5) I have only ever seen the quads shed electrodes, never the twins

Title: Re: Short or long spark plugs?
Post by: Andy B on 26 July 2013, 22:27:27

Are the above answers referring to long or short life. I understand the question as short reach or long reach?
 :-\ :-\

Title: Re: Short or long spark plugs?
Post by: henryd on 26 July 2013, 23:32:48

Quote from: Andy B on 26 July 2013, 22:27:27

Are the above answers referring to long or short life. I understand the question as short reach or long reach?
 :-\ :-\

 I thought same tbh  ::)

Title: Re: Short or long spark plugs?
Post by: 05omegav6 on 27 July 2013, 03:29:25

Quote from: Marks Hornby Scape Goat on 26 July 2013, 22:17:07

I would always advise twins for the follwoing reasons

1) There cheaper.
2) They shield the flame front less (hence mixture easier to ignite).
3) Quads are the same plug with two extra electrodes, this gives a theoretical longer life and nothing more.
4) Quads require tightening after around 30-40k miles
5) I have only ever seen the quads shed electrodes, never the twins

The only plug I have experienced this with was a twin which dispensed the core electrode and some insulation into cylinder 6, the engine has never been quite right since ::)

Title: Re: Short or long spark plugs?
Post by: Rog on 27 July 2013, 08:40:00

Quote from: Andy B on 26 July 2013, 22:27:27

Are the above answers referring to long or short life. I understand the question as short reach or long reach?
 :-\ :-\

Same here. I thought this was about physical length   ???

Title: Re: Short or long spark plugs?
Post by: 05omegav6 on 27 July 2013, 17:08:42

Quote from: ex taxi al on 26 July 2013, 22:06:08

Only ever quads over here, and I bin them after 20k :y only used twins once, they were in the car for 2k tops :-\ Not saying they caused my misfire problems, but I have yet to destroy a quad plug :-X

Found the pic ::)

(http://i344.photobucket.com/albums/p326/chrisgixer/60fc9b4a.jpg)

Definitely a twin :-\ dug pic out just to be sure as it was a while ago...