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NGK RS7 Plugs and other RS7 plug options thread

SugarMouth

Drag Race Newbie
Location
Nevada
These are the latest in RS7 plug options. NGK part # 06K 905 601 M. These are of a different design than the 079 905 626M and 079 905 626G plugs manufactured by Beru which are side firing. Personally I trust NGK over any other plug brand on the market.

Pics courtesy of HS Tuning
 

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Mk7GTl

Go Kart Champion
Location
USA
These newer ones aren't side firing right? or am i seeing the picture wrong..
 

0bLiViOuS

Go Kart Champion
Location
Orange County
NGK doesn't make the side firing ones, only Beru/Audi. These are just an option which keeps the OEM design and uses a traditional ground strap which you can adjust
 

SugarMouth

Drag Race Newbie
Location
Nevada
Starting right off with a divisive statement like "personally I trust X over Y" eh? The main manufacturing plant for Beru equipment is in Germany. They're chosen as OE plugs by many manufacturers.

http://beru.federalmogul.com




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It's only divisive if you decide to make it that way. This is a forum of discussion. I know everyone has different experiences and preferences and I encourage discussion about it. My personal experience has been the best with NGK. Others may disagree but that is OK.
 

SugarMouth

Drag Race Newbie
Location
Nevada
Credit to the following information is from Jeffrey Hurley at HS Tuning:

"We frequently get asked questions about spark plugs and ignition coils for MQB 2.0T cars, and I figured it might be helpful if I made a post to try to help mitigate confusion.

Current ignition coil revision: 06J 905 110 K
RS7 Plug, NGK version: 06K 905 601 M
Of course, both available at: www.hstuning.com

Of course, the whole idea behind not using the stock plug found in your GTI, Golf R, A3, or S3 is that with higher pressures and temperatures, we benefit from a plug that's one heat range colder than stock. The stock spark plugs are a (7) heat range in NGK nomenclature, and one heat range colder is (8). Until now, we've had limited options to do so, as our plugs have some unique geometry. Many have used the 079 905 626 G or 079 905 626 M RS7 plugs which were manufactured by Beru. Because NGK is the world leading manufacturer or plugs and we've not once had an issue with their plugs, we tend to prefer them. We also appreciate that NGK is fairly open with information about their plugs, allowing us to make sure we're doing what is right for our engines.

If you look at the first picture I posted below, you'll notice some differences between the Denso IKH24 plug and the NGK RS7 plug. One of the most obvious differences is the terminal of the plug, where it meets with ignition coil. The Gen 3 TSI's have a conical spring connection at the spark plug rather than the traditional ball seat male/female terminal found on the IKH24. This was done because it saves length, allowing for a longer ceramic insulator. The longer insulator improves flashover resistance and the terminal cup shields the contact. The Denso plug has ribbing to cope with flash over, where the cup design on the NGK is meant to prevent it.

You'll also notice notice that the center electrode and the nose of the insulator are shaped a little differently between the two. The RS7 plug is much closer in shape to the original plug for the Gen 3 engines, the 06K 905 601 D. I'm still looking into the Denso geometry and whether it's a benefit, detriment, or neither. I'll report back if I can find anything definitive. This geometry mostly has to do with thermal conductivity and the path for dissipation of heat. It's mostly important though, that the firing end of the plug stay under 800 degrees C.

The NGK RS7 plug is a double Iridium plug, which means that the center electrode has a laser welded Iridium tip and the ground electrode has a square shaped Iridium coating. That means, that the interval on this plug should be closer to 35,000 miles (the RS7 interval), than the 15,000 or so with the IKH24, making it more cost effective in the long term. This is also good news for you water/meth users as Iridium is the most corrosion resistant metal on the planet, and very stable when exposed to methanol.

With regard to the ignition coils, they have gone through several revisions since the cars were released. The latest is manufactured by Borg Warner, a name we generally trust in the automotive world (DSG owners can thank them for that technology). So far, I've installed them in our GTI and monitored: knock, ignition, AFR, and torque for changes, and the newest coils do seem to be a slight improvement on the slightly aged components that were in the engine, but we are currently working on a test bench to provide more information. We did this for the MK5/MK6 owners and things worked out quite well for end users.

Because we now have a good double Iridium option, I see no reason to depart from the original design simply to have a plug that's one heat range colder than stock. We now have a plug that's made with the original features, by the best plug manufacturer in the world, in the correct heat range. I've paired them with the new coils in our GTI and have been happy with the results. Hopefully this clears up some things for you guys. I'm happy to answer any questions I can.

I also put together an ignition service kit with the newest coil revision and NGK RS7 plugs in case any of you are looking to refresh your parts. I also put the RS7 plugs up individually and as a pack of four if you just need to get the colder plugs in your engine.

Have a great weekend guys/girls!"
 

phobos512

Ready to race!
I would be curious to see a statement from HSTuning as to why they are selling different plugs for the RS7 application than every other major VAG aftermarket parts house. Can you ask them if you have the ability to do so? May shed some light on the difference.


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SugarMouth

Drag Race Newbie
Location
Nevada
I would be curious to see a statement from HSTuning as to why they are selling different plugs for the RS7 application than every other major VAG aftermarket parts house. Can you ask them if you have the ability to do so? May shed some light on the difference.


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Good question, let me look into it and see what their take is on it.

I've got a set coming to me now to replace my Brisks. I have no complaints with the Brisks as of yet so I will be curious if I notice any difference with the NGK. I will say the Brisks don't use the nickel coating that make them screw in smoothly which I don't care for. Thankfully NGK, Beru and Densos do.
 
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0bLiViOuS

Go Kart Champion
Location
Orange County
I think that was answered above in that they believe NGK is the best?

I will agree that NGK has NEVER let me down. My next change I was going to go RS7 plugs but I may try the NGK RS7's because I can gap them. I think the technology behind the overall plug design as highlighted in the IKH24 thread by RJ and this shows the reason for departure from traditional plugs.

I find it interesting that they've found improvements on the coils and interested to see if their tests show anything or this is due to just normal wear and swapping to new coils
 

SugarMouth

Drag Race Newbie
Location
Nevada
I think that was answered above in that they believe NGK is the best?

Right. I would like to see their take on the Berus. Some guys in the UK use the Berus in their TTs and like them but I'd be curious in a year from now if more are using this new NGK plug.

I am fired up, before these it was just that race plug NGK had for big $$$.
 

phobos512

Ready to race!
I think that was answered above in that they believe NGK is the best?

I will agree that NGK has NEVER let me down. My next change I was going to go RS7 plugs but I may try the NGK RS7's because I can gap them. I think the technology behind the overall plug design as highlighted in the IKH24 thread by RJ and this shows the reason for departure from traditional plugs.

I find it interesting that they've found improvements on the coils and interested to see if their tests show anything or this is due to just normal wear and swapping to new coils



No, it wasn't answered. I want to know why ECS, DAP, Amazon, AudiUSAParts, etc. and all list one plug and HSTuning lists a completely different plug. Have they done testing? How did they even find this other plug since it doesn't come up in the Audi RS7 parts fiche?

https://parts.audiusa.com/a/Audi__RS7/_51507_6786581/IGNITION-SYSTEM-ELECTRICAL/1331285.html


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SugarMouth

Drag Race Newbie
Location
Nevada
No, it wasn't answered. I want to know why ECS, DAP, Amazon, AudiUSAParts, etc. and all list one plug and HSTuning lists a completely different plug. Have they done testing? How did they even find this other plug since it doesn't come up in the Audi RS7 parts fiche?

https://parts.audiusa.com/a/Audi__RS7/_51507_6786581/IGNITION-SYSTEM-ELECTRICAL/1331285.html


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https://www.ecstuning.com/b-genuine-volkswagen-audi-parts/spark-plug/06k905601m/

My hunch is because it's a new plug. I'm sure in a month they will all have it listed.
 

phobos512

Ready to race!
https://www.ecstuning.com/b-genuine-volkswagen-audi-parts/spark-plug/06k905601m/

My hunch is because it's a new plug. I'm sure in a month they will all have it listed.



Yes, it IS in their system; it's in Audi's parts system too. But there are no applications listed. Also, it's odd to me that it's an entirely different part number series than existing NGK plugs Audi carries.

Oh and this is interesting a Russian website is claiming it's the spark plug for the new 2.5 liter in the RS3 and TTRS; I also found a part number 06K 905 601B on the TT parts fiche...

EDIT It seems the B revision plug I noted up above is the stock plug for all current 2.0 VAG engines...I'm betting that the M version you've found is really the new version of THAT plug and not the plug for the RS7...


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PacDawg

Drag Race Newbie
Location
Gilroy, CA
Yes, it IS in their system; it's in Audi's parts system too. But there are no applications listed. Also, it's odd to me that it's an entirely different part number series than existing NGK plugs Audi carries.

Oh and this is interesting a Russian website is claiming it's the spark plug for the new 2.5 liter in the RS3 and TTRS; I also found a part number 06K 905 601B on the TT parts fiche...

EDIT It seems the B revision plug I noted up above is the stock plug for all current 2.0 VAG engines...I'm betting that the M version you've found is really the new version of THAT plug and not the plug for the RS7...


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You saw this post right?

http://www.golfmk7.com/forums/showpost.php?p=388586&postcount=35

It appears to be the newest plugs for the RS7 in Europe anyways.
 
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