What temp. are you guys running?
What temp. are you guys running? What is recommended operating temp. on an LS1/LS6? I was running 180 deg F most of the time & thought maybe 195 ish would be better for clearances etc.. Anyone know for sure?
Secondly, the fact that I had heat damage to the top of #7 piston when my car overheated to engine shut off, thought that perhaps it is an engine cooling issue that causes so many to lose #7; not a lean condition. Mine was definately related to overheating as it was the top of the piston nearest the valley that was damaged. So, when the engine overheated, the area around #5 & #7 got the warmest. Had a lean condition caused the problem, it would have been closer to the plug. Looks like that even under normal running conditions, that the hottest point on the block is @ the top of #7 because of coolant flow. Am thinking that when the engine is reading 180 deg F, the area around number 5 & 7 could be 10+ degrees warmer. Anyone else have an opinion about this?
Secondly, the fact that I had heat damage to the top of #7 piston when my car overheated to engine shut off, thought that perhaps it is an engine cooling issue that causes so many to lose #7; not a lean condition. Mine was definately related to overheating as it was the top of the piston nearest the valley that was damaged. So, when the engine overheated, the area around #5 & #7 got the warmest. Had a lean condition caused the problem, it would have been closer to the plug. Looks like that even under normal running conditions, that the hottest point on the block is @ the top of #7 because of coolant flow. Am thinking that when the engine is reading 180 deg F, the area around number 5 & 7 could be 10+ degrees warmer. Anyone else have an opinion about this?
My primary fan was set to come on @ 160 ish & the fan ran too often. After the tuner re-set the primary fan to come on @ 180 ish the fan ran less often. Anyway, was running around 180 w/ 180 stat & fans on around 160. With fan set on @ 180, she was running @ 190-195 up until the block change work began. Will check the temp. again next week after we finish up w/ the new block install. Sounds like 190-200 is the sweet spot. Will also be reading temp. right @ cylinder #7 @ the water port in the head. Thanks all.
I prefer alittle more temp in EFI applications. I have a stock thermostat and fans set to come on at 200* low and 210* hi. With this setup I run at steady cruise 194* to 196* and in stop and go traffic the highest I see is 205* to 208*. Just my experience.
