what glow plug
 

hi kinda new to the forum and need a bit of help. i have a savage 21 and have upgraded the engine and various parts. i have just bought a nitro star f4.1 engine which i plan to run on 30% nitro methane. what sort of plug do i need, also will i need to lower the compression ratio of my engine. i am a fully qulified mechanic so dont be to afraid to be all technical on me. thanks to anyone who replys to this thread:tire::tire::tire::tire:

It says to run an hpi r5 cold glow plug. You could also run a mccoy mc8, an o'donnell #99, or any other cold glow plug.

WOW wasn't expecting a reply that quick. thanks you have been a big help:tire::tire::tire::tire:

go to your local hobby shop and ask them what you should run.