R50/53 Spark Plug Replacement Question
Spark Plug Replacement Question
I've got an 04 MCS and it's time for new plugs. My question is: if I plan on installing a 15% pulley sometime this summer, should I go ahead and get the one step colder plugs in the meantime? Like these: http://www.outmotoring.com/mini-coop...ark-plugs.html
Is it a problem to use the colder plugs if my car just has an intake right now?
Is it a problem to use the colder plugs if my car just has an intake right now?
4th Gear
Joined: Nov 2007
Posts: 429
Likes: 2
From: Ann Arbor, MI
Great question... I'm looking forward to answers as I'm wondering this myself
BTW you can find the NGK Iridiums for <$30 shipped:
http://www.ecrater.com/product.php?pid=2035272
BTW you can find the NGK Iridiums for <$30 shipped:
http://www.ecrater.com/product.php?pid=2035272
Last edited by kgardnez; Jun 5, 2008 at 06:11 PM.
Banned
Joined: Oct 2006
Posts: 715
Likes: 2
Every Minis environment is different. Unless you do an actual plug reading you really do not know what your are getting into by jumping into different heat ranges. There are numerous threads on the subject and the general consensus is to go to a colder plug with your planned mods. If you live in an area that there are tunes done on Dyno's with Minis this may give you a better insight what to do.
I tried searching, maybe it's just me but I could not find anything that answered my question. How would a colder spark plug affect how the car runs even without the mods like the smaller pulley?
4th Gear
Joined: Nov 2007
Posts: 429
Likes: 2
From: Ann Arbor, MI
If you run too cold of a plug, you can have fouling (ugh, I had this on my motorcycle) which leads to problems starting and potentially rough running.
However, I don't think anyone can provide a hard and fast rule as your particluar engine, your style of driving and environment all play into this.
However, I don't think anyone can provide a hard and fast rule as your particluar engine, your style of driving and environment all play into this.
6th Gear
Joined: Jun 2003
Posts: 3,589
Likes: 2
From: Oregon, USA
Very easy to do.
Changing to a colder plug is recommended when you are doing a pulley install. It will help with the added temps that the SC is now creating.
I recommend the colder JCW OEM plugs. Lots of complaints with the iridiums electrode wearing out. You can get the NGK oem plugs for the same price (maybe even a bit cheaper) than the iridiums.
Changing to a colder plug is recommended when you are doing a pulley install. It will help with the added temps that the SC is now creating.
I recommend the colder JCW OEM plugs. Lots of complaints with the iridiums electrode wearing out. You can get the NGK oem plugs for the same price (maybe even a bit cheaper) than the iridiums.
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Banned
Joined: Oct 2006
Posts: 715
Likes: 2
Very easy to do.
Changing to a colder plug is recommended when you are doing a pulley install. It will help with the added temps that the SC is now creating.
I recommend the colder JCW OEM plugs. Lots of complaints with the iridiums electrode wearing out. You can get the NGK oem plugs for the same price (maybe even a bit cheaper) than the iridiums.
Changing to a colder plug is recommended when you are doing a pulley install. It will help with the added temps that the SC is now creating.
I recommend the colder JCW OEM plugs. Lots of complaints with the iridiums electrode wearing out. You can get the NGK oem plugs for the same price (maybe even a bit cheaper) than the iridiums.
While this is a good general rule you would be prudent to learn more and get a tune anyway.
http://www.ngksparkplugs.com/techinf...000&country=US
Changed my mind, I just bought the colder Denso Iridium Spark Plugs from outmotoring.com when I was ordering my Hawk HPS brake pads. I plan on doing the pulley install soon so I just went ahead and bought the colder ones. Hopefully I made the right choice!
Motor on!
Rich
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