battery charging between rounds?

[Ed Wright]

Originally Posted by Mike Taylor 3601

Ed,
I was wondering would those LS's your talking about not responding to cooler water temp, could that be in the tuning? could they be rich and the higher temps lean them down to where they run better?

Mike Taylor 3601

Mike, it seems to be more aluminum blocks. I first noticed it when I went roundy-round dirt track racing in the '80s. At first around here we had iron block 350"s on gasoline, and most had Brodix heads. They liked to run cool just like my drag cars did. When we went to 410" full blown sprint cars with aluminum blocks I found on the dyno it didn't care for cold water. Liked to run between 180 and about 210. I attributed that to methanol fuel. Later when the LS1 came out, I saw the same thing with them on gasoline. I then thought it was something to do with aluminum blocks. Maybe I'm wrong, but tuning didn't make them like to run any colder. The GM factory computers correct for coolant temps. There is a table for P.E. (WOT) fueling corrections versus coolant temps as well as air temps. I tried tuning for max torque at 160, but if you warm them up the power came up. Guys seem to want to use 160 deg 'stats in those just like they always did with older engines. I usually just set their cooling fans to keep them around 180. I think he should test that on his car. Can't hurt, he may learn someting the others don't know.