Originally Posted by
Stubbs
I was thinking of something completely different. I've had instances where my engine was up to temp, and I was doing some runs up and down the front straight on my local track to dial in the HSN, and I could hear some "pops" as it was running at high RPM.
I was curious whether that was tune, fuel, or glow plug.....
See now some of the other things that i have read was that pre-detonation is usually right around the max rpm that you can make. Perhaps that is the pop you are hearing? I do believe a change to either nitro content, head shims or colder glow plug might be needed in that case.
I havent heard a "pop" come from my engine. Does it sound like a backfire or something? I honestly dont know that ive ever heard one?
The noise i heard was pretty strange, at this point im really starting to think that i was a touch lean up top, and using a glow plug that was hotter than i needed that day. Like I said hard to describe. maybe like the engine wasnt firing once every 4-5 stokes? Hell maybe it was a bad plug, its been changed since lol.