Originally Posted by
Speed_Freak_039
Hey guys, I am currently using this motor with the stock medium turbo plug and 20%. I am going to start using 30%, I added the necessary shims. The medium glow plug barely lights up. Ive always used hot in my other motors. Will I be ok with a hot plug and the 30%?
Can I use anything other than a RB plug?
When you say barely lights up are you referring to. plugging the plug into your glow igniter while it's out of the engine. If this is the case you may want to check your igniter. You may already know this but a glow plug does not get hotter after engine is started. However hot the igniter fires the plug at the start will be the heat while running. If your running the RB #6 that plug lights up very well and is perfect for your C6. The plug may be on it's last leg.