Novarossi or O S glo plugs?
 

I have a novarossi plus 21-7 and would like to know if anyone knows if the taper on a turbo plug is the same a novarossi plug or do they recommend using OS plugs in this engine?

taper is the same
 

the basic plug shape is the same. However the OS plugs use a different method to indicate heat range. Its hard to match them up to the nova types. I'd stick with nova or RB plugs in a Nova motor.

Griz

The newer nova plugs (g series) are of a much higher quality than the OS plugs

c7tgc for hot humid days
c7tgf for hot dry days

if all else fails, c6tgf.

i say os... just my 2 cent's

novarossi has 2 different glow plugs listed c7tgf & c7tgc what is the difference?

Both OS and Novarossi use the same thread. Since you are running a Novarossi, I would use the Novarossi plugs. I use the OS only in emergencey.


Be careful about using the Picco based Mega. Those engines use just "Mega" plugs. The treading is different. I found out the hard way...

novarossi based engines should have a novarossi based plug (rb, nova) os has their own as well. every plug manufacturer even has plugs they suggest for os and or novas that i have seen....