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Fiesta-Si.com :: View topic - Best Spark Plugs?
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Best Spark Plugs?
https://www.fiesta-si.com/forums/viewtopic.php?f=4&t=15488		 Page 1 of 1
Author:  megaflea [ Sun Apr 26, 2009 6:37 pm ]
Post subject:  Best Spark Plugs?
Good evening,

Just looking for some opinions on the best spark plugs that you have used in your car or that you are currently using..

i know a sparkplug is a sparkplug at the end of the day and as long as it sparks thats kinda all that matters,

But these companies,
Bosch , Denso, NGK , Champion, MotorCraft
(i wont use champs again as they go rusty at the slightest hint of moisture)
have there range of cheap to expensive plugs

platinum, double platinum
super plus, super 4,
iridium, super iridium lol
single twin quad electrode etc...

then there's standard ford MotorCraft and MotorCraft platinum

each companies boasts about this and that,

and so on,

what is your preferred choice of plug.
or what do you know its the best plug to run on the zetec-e lump,

currently i am trying out the bosh super 4's and they dont seem to impress me they seem to have killed the pleasant powerband from 4k-6k,
but increased bottom end torque?
the super 4s seem to run abit colder as they come out a with carbon deposits on the base of the plug

my old set of NGK R's seem to be the best all round, they seem to run hotter than the boshs as they come out a little less tanned than the Bosch plugs

all opinions welcome :)
Author:  THE HOG [ Mon Apr 27, 2009 10:22 am ]
Post subject:  Re: Best Spark Plugs?
hi m8 you see when this done could you post wot pepole thought were the best as i have heard a lot of desucion about sparky fuking up the power in pepole's car a lot of pepole have told me to go to ford motersport for them and to avoid boch. but other's say that boch are fine.
Author:  onslack [ Mon Apr 27, 2009 11:01 am ]
Post subject:  Re: Best Spark Plugs?
i have some random plugs in mine, cant remember what brand for the life of me tho :red: made my Si run like a sack of shit

i swapped over to motocraft platinum jobbies stuck with those pretty much, ran sweet as a nut after that :chill:
Author:  Ry [ Mon Apr 27, 2009 6:59 pm ]
Post subject:  Re: Best Spark Plugs?
Bosch do the job for me normally.
Author:  EvilDes [ Tue Apr 28, 2009 7:27 am ]
Post subject:  Re: Best Spark Plugs?
Always used Bosch's on the Si :)

NGK's for the Pulsar :)
Author:  megaflea [ Wed Apr 29, 2009 7:23 pm ]
Post subject:  Re: Best Spark Plugs?
so it appears we have a mixed opinion
between NGK Bosch and Motorcraft.

If the next to posters say denso and champion then i guess no-one really knows what the best plug is lol,

if i had the time and money i'd rent a rolling road for a day and test several plug and gap combination lol.

I would like to think that the Motorcraft plugs were the best for the engine as i guess they might have been specified in the original engine blue prints lol, but everyone knows someone else can make a part for a ford better than original :P
Author:  Tweek [ Sat May 02, 2009 10:44 pm ]
Post subject:  Re: Best Spark Plugs?
New Motorcraft plugs are made by NGK anyway.
Author:  woodsy_mv6 [ Tue May 05, 2009 10:51 am ]
Post subject:  Re: Best Spark Plugs?
I personally use Denso as i've got a supplier state side who stocks them at a very reasonable price, but anything iridium ftw :thumbsup:
Author:  THE HOG [ Tue May 05, 2009 11:51 am ]
Post subject:  Re: Best Spark Plugs?
to be honest i think the plugs must differ on engines.
as pepole are getting good results from a brand of plugs when other's using the same plugs are getting bad results.

so i am going to give it trile and error basicly.

i will take all the brands listed and note them down then try each 1 over time and see wich work best for my engine. :thumbsup:
Author:  megaflea [ Wed May 06, 2009 8:51 pm ]
Post subject:  Re: Best Spark Plugs?
Author:  Emlyn11 [ Mon May 11, 2009 1:28 am ]
Post subject:  Re: Best Spark Plugs?
I had no end of trouble on my si (think it was my first one) with plugs
NGK's didnt help, bosch didn't help and Motocraft sorted it right out
so thats what I would go for.

My cupra melts bosch plugs, so I need colder grade iridium jobs, but thats not
needed on a N/A car.

Motocraft :thumbsup:

Emlyn
Author:  Fezzyzetec [ Mon May 11, 2009 9:15 am ]
Post subject:  Re: Best Spark Plugs?
cant see how p[lugs would cause a problem when repalcing them unless they were faulty items they should all be fine i sued ngk platinums on mine were sound
Author:  Emlyn11 [ Mon May 11, 2009 2:51 pm ]
Post subject:  Re: Best Spark Plugs?
All I know about it is I put brand new NGK's in and it ran like shit, then I put some
used Motocraft items in and it ran like a dream.

Plus, I did the gaps on all of them to make sure they were in.

Emlyn
Author:  95 Fiesta Si [ Sat May 30, 2009 10:28 am ]
Post subject:  Re: Best Spark Plugs?
NGK triple platinum plugs are pretty good :thumbsup:
Author:  Mav [ Wed Aug 26, 2015 11:02 pm ]
Post subject:  Re: Best Spark Plugs?
Denso iridium is good
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