I am putting a 15% reduction pulley on my car and want to buy some new plugs as has been recommended by several others. Is there any difference between NGK Irridium and Denso Irridium plugs, or do i just go with what i can get the best deal on?

 

I went with NGK and I love them.

If you search you can find some horror stories about the Densos working themselves loose and destroying a head. Have yet to see one for NGK which is why I went with them.

Either way, make sure you check your plugs monthly to make sure they are sitting nice and pretty at 20ft-lbs.

I did a little write up on the install if you're interested.

 

We sell the Denso Ik-22 cold plugs for $46.95 plus shipping.

Brad
Custom Mini Shop

 

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Um...

kinda looks like they own an S to me...

where did you gather it was a non-S?

 

Because this is the Non-S forum. Looks like the original poster just put this in the wrong forum.

Mods, move this bad boy.

 

sorry... didn't notice that.

 

Go for the NGK's. You can get them for about $7 plus shipping from most vendors.

 

I bought a set og NGK BKR7EIX-11 from e-bay for $26 plus $6 shipping. Thanks for the help.

 

i second ebay, i got my NGK for $26 including shipping, can't beat ebay.

 

NGK all the way.

 

Haven't used the NGKs, But I am very happy with my Denzos!

 

X2!

 

x3

 

Dumb question? With the after market plugs blowing off the head why isn't anyone using the OEM JCW plugs? I haven't heard of these loosening and blowing off. They have the right temp. range, leanght for the 15% pully that the JCW has. So, again what gives?

 

I think it's because they are very expensive. Search on it. I think the price is posted in the forums somewhere.

Found it. $35.00 each.

 

no issues with ngk's . but i do re torque regularly.

 

I'm considering getting the NGK plus. Any happen to know the gap settings?

What happens if you get a 15% pulley reduction without changing the plus?

 

The gap setting should be fine if you get part BKR7EIX-11. If I recall correctly the gap setting only needs to be changed when you change out your coil pack to something that increases the voltage. I believe that this was regarding a discussion about Densos...

 

They'll start to back out if you go too long...possible near miss here.

 

Nothing.

Helix has done many tests with different plugs and there really is no performance increase. I've found my mini runs a little smoother, but that's all I've noticed so far. They'll help a bit if you bounce around the red line a lot.

 

Am I the only one that notices that this IS indeed the "S" forum? Passat, what are you smokin?!

I too have the Densos and have had no problems...but will check again once it gets a little warmer here.

TJM

 

I use the NGKs because the tip is slightly larger than the Denzos. When you put them side by side, the Denzos actually have several features that look more costly. While not significantly different, the Denzos with their smaller tip should give better performance, while the NGKs should last longer. I stress that these are small differences!

The most important point to remember is what several other posters have pointed out - always torgue your plugs to 21 foot ponds, and do it with a COLD engine. IMO, all the issues people have with plugs coming loose are related to this basic issue. An alluminum head expands and contracts greatly with temperature! The manufacturer installs plugs in a stone cold head and every factory trained technician knows to wait till the head is cold before installing plugs. How many shade tree mechanics are used to working on steel heads or are completely new to this?
Just my 2 cents...

 

I believe NGK is the OEM JCW plug!

 

NGK is MINI's supplier for all OEM spark plugs, none of which are irridium based...not that that helps with why we don't use JCW plugs...If I recall they are comparatively quite expensive.