1QwkSport2.5r

Yup. As long as it’s hot enough, surely it will work. I use Enya #3 plugs in my 4-strokes with great results.

mrthrun

I really appreciate your post. I am seriously considering getting into nitro RC and have been trying to do as much research as possible first. Glow plugs seemed to be a recurring theme but this is the first and only post I have read that actually presents need to know information. You may want to consider doing a youtube presentation of this as well.

Thanks again.

1QwkSport2.5r

Some people just insist on using this plug or that plug for their application without any testing to find which is the best performing and longest lasting. I find the best of both worlds and use that. Many people use hot plugs because they suck at tuning and never try anything else because “it works”. However, colder plugs allow a sharper tune and often this gives much better performance overall at the expense of a little coarser idle quality. Nitro Engines is a balancing act. Often folks choose a heat range based on ambient air temp and this practice isn’t correct either. You tune the plug to the fuel used. Less Nitro needs more heat (hotter plug) whereas more Nitro needs less heat (colder plug).

N1EDM

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Does anyone know if the OS #6 plug replaces the old A3??

Thanks,

Bob

suburban_hooligan

A3 was a hot plug, #6 is a hot plug. hell it's probably the same plug with a new name.

N1EDM

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That's what I was thinking. I was just curious if I was right or not. Thanks hooligan!!

Bob

1QwkSport2.5r

Yes, I believe the A3 is the old #6. Same plug, different number. If you like these plugs, I have 3 A3 plugs NIP for sale.

N1EDM

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Thanks for that 1QwkWport2, I've got enough plugs for now. But thanks again for confirming that... I hope you unload those A3's ASAP...

Bob