Hello All,
I'm back into nitro after 30+ years away. I have a Kyosho Inferno MP10 readyset with the .21 Hyper engine. I also picked up a HoBao Hyper SS with the .28 Hyper 6 port engine.
I broke in the .21 and while it gets as hot as 280F on the top of the glow plug I can mostly keep it in the 260F range. I put in a P4 glow plug compared to the P3 it came with stock. I also run it as rich as I can without it choking out when going full throttle.
I got the .28 broken in but I can easily get it above 300F on top of the stock P4 glow plug. Note this is the hottest portion of the engine, other areas are low 200F. It is much more rich than the .21 and blows a solid stream of smoke at mid or full throttle. It will get so hot that it seems to vaporize the fuel in the crankcase and hold a super high choppy idle. I then know it is time to let it idle and cool off. I've gone so far as to bring a handheld fan to cool it off when this happens.
This is all concerning to me as I have it set super rich. I am going to try a P5 glow plug but am not expecting much. I would add some head shims but I think it is something more fundamental. I think my tuning is on as it blows great smoke, accelerates out of a corner well with even more smoke, and holds an idle for more than 30 seconds....easily.
I haver tried trimming the body around the head a lot more. I have also removed the body compleatly. Neither solved the problem. Does it need more break in? I have about 1/2-2/3 gallon through it now.
It is mid 90 degrees here now. I also spend a lot of time full throttle on my makeshift course. It is basically a figure out spread out over 100 feet so that I can practice initiating turns, holding the turn, and coming out of a turn.
My thought is that I am just driving too aggressively for a nitro engine in this weather. But if that were true, then why does my kyosho with a .21 run almost 50 degrees F cooler and I can run it as hard as I wish?
I'm back into nitro after 30+ years away. I have a Kyosho Inferno MP10 readyset with the .21 Hyper engine. I also picked up a HoBao Hyper SS with the .28 Hyper 6 port engine.
I broke in the .21 and while it gets as hot as 280F on the top of the glow plug I can mostly keep it in the 260F range. I put in a P4 glow plug compared to the P3 it came with stock. I also run it as rich as I can without it choking out when going full throttle.
I got the .28 broken in but I can easily get it above 300F on top of the stock P4 glow plug. Note this is the hottest portion of the engine, other areas are low 200F. It is much more rich than the .21 and blows a solid stream of smoke at mid or full throttle. It will get so hot that it seems to vaporize the fuel in the crankcase and hold a super high choppy idle. I then know it is time to let it idle and cool off. I've gone so far as to bring a handheld fan to cool it off when this happens.
This is all concerning to me as I have it set super rich. I am going to try a P5 glow plug but am not expecting much. I would add some head shims but I think it is something more fundamental. I think my tuning is on as it blows great smoke, accelerates out of a corner well with even more smoke, and holds an idle for more than 30 seconds....easily.
I haver tried trimming the body around the head a lot more. I have also removed the body compleatly. Neither solved the problem. Does it need more break in? I have about 1/2-2/3 gallon through it now.
It is mid 90 degrees here now. I also spend a lot of time full throttle on my makeshift course. It is basically a figure out spread out over 100 feet so that I can practice initiating turns, holding the turn, and coming out of a turn.
My thought is that I am just driving too aggressively for a nitro engine in this weather. But if that were true, then why does my kyosho with a .21 run almost 50 degrees F cooler and I can run it as hard as I wish?
