They're snowballed Bjarne, why bother

Viva la novarossi !

The "Don't use OS plugs in non-OS engines.." line is overrated - and overstated IMO.. I say that mostly just because of the sheer number of guys - experienced guys, into racing for years - who run OS plugs in their non-OS engines, and Novarossis especially.. I had a Nova last year I'd bought used which came with a P3, and it ran flawlessly. And again, even RMV Germany - which means Daniel Reckward afaik, recommends officially on their website the P3 for the RB Fire 11 (Nova parts) for people who use Tornado fuel, because of idle issues with the stock RB (i.e. Nova, or in any case nearly NR, non-OS) plug... I think the issue is blown out of proportion.

Need to change the front bearing on my 21 4c (i think) 5 gallons on it great pinch just having inconsistent idle issues.... Anything special about the novas i need to know? or tricks? Also what is the size of the front bearing? Thanks -Tim

Well
 

In my experience OS p3's are too hot for a nova. They get burned up quickly. The wire in a p3 is really thin, and it don't fit the taper either.

I have been using a Nova c6 and it works perfectly.

you know what sunny.. one of the guys that advocates P# plugs ... once said this same statement a months ago... now its the best thing since slice bread...


i have ran OS plugs in my Nova engines before but there was a time when NOva plugs had an issue, but now these plugs run as strong and last long...

so if you have old stock or buy from a hobby shop that doesn't have a good turn around on nova pugs.. then you maybe putting old nova plugs in your engine... something to think about

They made no new thread in my head button, I was careful turning it in, went in easier than my c6tgc, so obviolusy it couldn't have made new threads, I was turning it with 2 fingers and felt absolutely no abnormal resistance.

Exactly, everyone I know who races P5s use a P3 or P4 plug.

All I have to say is that upon installation of the P4 plug, my issues were instantly remedied.

7x19x6.3

I recommend a TKO ceramic front bearing: http://www.amainhobbies.com/product_...Novarossi-RB-1

You can block your vacuum return port in your engine: http://www.youtube.com/watch?v=gdt2luUlbuI

Are you sure your inconsistent idle issues are caused by a bad front bearing?

I just threw in a p4 plug in my proto 7 today whilst I was working a couple of tanks through her. It sincerely made the mill idle soooo much better. I don't really care for any particular brand plug but all I will say is the p4 will now be my plug if choice for my clocked nova mills.

And the plug debate rages on. I really just need to know the best way to tune the plus4c Team. Do I tune high speed first and then low or vise versa. Chopper gave me some good suggestions and I just want to make sure I don't screw the tune up. If someone could give me a in-depth description I would appreciate it. Thanks.

Go lookup Tebo's engine tuning guide on youtube. I'm sure you can find it. That will help you.

Os plugs will provide a broader range of tuning , os short tapered seal plugs work just fine bin novarossi but that doesnt mean it is the right thing todo

Try a c5tgc , its pretty close to os p4

So 7x19x6 is ok. That 6.3 seems pretty critical. All those motor bearings i find are by 6.0mm?

6.3 because the 17011 (or 17012?) bearing thats in the engine, the inner race protrudes .3mm. Any 7x19x6 or 6.3 bearing will work perfect.

Low speed first, what I told you should be enough to get you pretty close to a perfect tune.

Low speed on the starter box, high speed tuning after track driving, reset the idle gap to .6mm. If you have any problems, just post here and me or some of the other guys will help you out.

Maybe I will take a video of switching from a c5tgc or c6tgc to an OS P4 so everyone can see how much better the idle is. Actually, I will do it now.