Tumbleweed Whenever you think of the Wild West of America, you think of cowboy movies and tumbleweed, perpetually tumbling around a desolate landscape. According to the American movies, tumbleweed is as American as apple pie.
3 Answers. , I am a serious student of all questions relating to the environment. Gasoline can be ignited by even a tiny spark at temperatures as low as fifty below zero, but it merely evaporates at temperatures up to about four hundred seventy five to five hundred F. At that temperature, it ignites spontaneously.
Typical ranges: Combustion temp 14-1600* F (Gasoline wants to burn 1600 under compression but a propperly working EGR will bring it down to 1400) Exhaust temp is typically about 700* F at the head. Exhaust plumbing temp will be less than that depending on how efficiantly it can exchange heat with the outside air.All temps are given as nominals for four stroke gas motors at high load. I'll ask around and see if I know anybody with an infrared red guage. NMc.xhaust plumbing temp will be less than that depending on how efficiantly it can exchange heat with the outside air. All temps are given as nominals for four stroke gas motors at high load. I'll ask around and see if I know anybody with an infrared red guage. NMc.