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Novarossi N21BF Limited Edition .21 Off Road 3 Port - Glow Plugs

Novarossi N21BF Limited Edition .21 Off Road 3 Port - Glow Plugs

Old 06-28-2009, 07:47 PM
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Default Novarossi N21BF Limited Edition .21 Off Road 3 Port - Glow Plugs

I've just purchased a Novarossi N21BF Limited Edition .21 Off Road 3 Port. It comes with a standard glow plug head. Can anyone recommend any glow plugs that suite this engine.

I've got a few Axe Rossi standard R6 & R7 plugs. Would these be o.k. Also would the OS 8 plug suite this engine

cheers
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Old 06-28-2009, 07:49 PM
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I use the OD purple sport plug in mine
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Old 06-28-2009, 07:50 PM
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VeI've been running the odonnell 77 in mine with great success! They are only a few bucks and as good as any plug out there. IMO
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Old 06-28-2009, 08:18 PM
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Run the od77..I was told by a very respectful novarossi dealer to run the mc8 or the od plugs..

Don`t run the os plugs there a shorter plug and not meant for nr engine


I also have a NR limited engine..Can`t ait to break it in..The guy I got it from gave me mc8 plugs to run in it

Last edited by rossoh10; 06-28-2009 at 09:23 PM.
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Old 06-28-2009, 08:48 PM
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os8 are short.Use as rossoh10 said od 77. The os8 will not reach the combustion chamber
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Old 06-28-2009, 09:02 PM
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Guys is this the plug you are talking about. I note that it says for .12 engines. Got the description from Amain Hobbies.........

This is one O'Donnell #77 standard glow plug for engines that accept long shaft plugs (basically any engine except OS engines). This is a hot glow plug intended for use in .12 race engines with high nitro content fuels. This can sometimes be a good plug for .21 race engines if you need a hot plug (such as when the humidity is very high).

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Old 06-28-2009, 09:11 PM
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OD 77 for the 21 BF is perfect!!
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Old 06-28-2009, 09:25 PM
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thats the one.
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Old 06-28-2009, 09:26 PM
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O'Donnell 77 or 100 (if you can find it) best plugs for any motor (that is not O.S.) made. Ignore what the descriptions say and listen to your fellow racers.
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Old 06-28-2009, 09:43 PM
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cool. just ordered 4. am based in Australia so it will take a week or so to receive. thanks for the advice.
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Old 06-28-2009, 09:49 PM
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just one other question. am going to run 25% nitro. I take this hot plug will be o.k with 25%. I've always thought the higher the nitro the cooler the plug

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Old 06-28-2009, 09:50 PM
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Can you run 30% in the 2001bf are do you need to add a Shim.
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Old 06-28-2009, 09:59 PM
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Originally Posted by voodoopapa View Post
just one other question. am going to run 25% nitro. I take this hot plug will be o.k with 25%. I've always thought the higher the nitro the cooler the plug

cheers
Yes you will be ok....

Originally Posted by thenova70ss View Post
Can you run 30% in the 2001bf are do you need to add a Shim.
Yes you can run 30% but it would be good idea to add a .10mm shim or take out the .10mm shim thats in it and add .20mm shim.....The shim will help you squeez a little more top end and running 30% also adds a little top end
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Old 06-29-2009, 02:59 AM
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what about a place like (hot) above 90 deg. asian side ,what do you guys recommend ?what plug ??,thks
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Old 06-29-2009, 04:34 AM
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Originally Posted by thenova70ss View Post
Can you run 30% in the 2001bf are do you need to add a Shim.
Yes 30% works great in the 2001bf . Thats all i have been racing with is 30% and have 8 gals though it and the only thing that i have changed is a few glow plug. This motor is great. its not as fast as some of the other motors out there but for the price you cant beat it.
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