This is the P7 Glow Plug for use in the OS Max .21 VZ-R and .12 TR engines.
For use with fuel containing 10-20% nitro methane
This glow plug is different from the conventional glow plug. It is made to fit the Inner Head of the OS .21 VZ-R and .12 TR engines.
It has a slight taper on the bottom allowing it to sit flush with the combustion chamber.
P8 |
Cold |
Cold enough to outlast the hottest "heats". For Turbo head engines. |
P7 |
Medium |
An all-season, medium-heat plug for Turbo head engines. |
P6 |
Hot |
A hot choice for all .12-.21 Turbo head engines. |