plug?

[dmckie]

I just resently changed fuel from odonnalls 20% to odonnalls 30%. What heat range plug should I use now with the new fuel? I usually have used a med heat range .The temp outside is dropping in the low 40's. about the only thing I had to do is rich it up ,but it took about a full turn out to get the temps in the 270 range. I'm damm near a 1 1/2 turn out from the housing and am afraid if i go anymore to get the temps lower the needle will fall out. LOL

 

[AC48]

What kind of engine do you have?

 

[mattyk6]

I went from 20 to 30 and I didn't change plugs. I am using an OS A5 plug. But I didn't change outside temps.

 

[dmckie]

It is a hyper 8 port race. Just wondering with the wheather change ,and the different %. Which way I should go. Hot , cold or stay with the med plug

 

[AC48]

Usually big blocks like colder plugs. I'm not too sure on what the 30% will have to do with the plug though. I guess I would suggest trying a cold plug.