Originally Posted by Rotary7
Hes talking about water/engine temp,not exhaust.
Install a gauge that reads temp in numbers,and you will see where you are at.
About the same as a bike,BUT protected by the heat.
i understand that, i wasnt talking about being protected or not, they said motor cycle engines run hotter then car engines do. All i was saying is that a car engine runs hotter. I brought up the exhaust thing as a example of how hot rotaries can get. If the exhaust is hot enough in a rotary to melt a glass pack, but a piston engine's exhaust doesnt get that hot, its proof that the rotary is running hotter. Hell i wasnt even comparing a rotary until that guy brought in his vtwin.
A bike cools off a great deal while driving, cars cool off a little sure, but they have engine components that keep them cooler which bikes don't.
I dont doubt that since atleast 90% of the engine on a bike is exposed to the air, and a cars engine is maybe 10%. but i know from personal experince when i blew a coolant hose when i was driving at 60mph, my temp droped about 1/4 from what it was at when i was idling.