When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I am interested in knowing what operating temperature is considered safe before mildly mashing the accelerator pedal to ... say... 4000 rpm between shifts on my 2000. I always tried to have my vehicles properly warmed up but I'm not sure about the LS1.
While I am NOT a TECH, I consider common sense as a good guide, I feel that being the LS1 is all Alum. not only temps should be of a certain level I feel that getting everything equal or "heat synced" is my rule of thumb, so I get the car up to normal op. temp (174 in my case) and I like to see my oil with-in 10 degrees of that and that way I know all the alum. is all about the same temp and I feel like I won't blow any gaskets etc.. I would at the VERY least make sure your thermostat is OPEN before laying her open, otherwise I think there is undue stress on water pump and other parts of system. It only takes about 10-15 min (outside temp over 65) to get the car to those temps.
Look at the oil temp, not the water temp. When the oil gets to 150 the engine is fully warmed up. This is generally twice as long as it takes the water to get to temp.
By this point, the block and heads will have achieved operating temps, and the oil will be protecting and cooling the engine.
I presume you know what your usual warmed-up and running temps are. Why not simply wait until they show? Unless it's pretty cold it doesn't take long-- atleast not here in the South. Good luck.