Glow Plug Problem
Hi!
You run 20% nitro in your SC .15 but in most sport engines one must add a headshim (0,1mm) or more when the nitro content goes over 15%( the nitro rises the compression ratio too much). Have you tried adding a shim?
Also when using so much nitro the OS 8 glowplug is much too warm ...try a colder plug!
Regards!
Jan K
Sweden