How much cooling capacity with the 34"/OEM Efans over LS1 fans?
04-13-2010, 10:57 PM
#1
How much cooling capacity with the 34"/OEM Efans over LS1 fans?
These LS1 fans simply aren't getting the job done. By the time I pulled up to the staging lanes tonight my ECT was sitting at 214. Waiting in a 50 car line just isn't conducive to low temps. Can I expect the OEM Efans and 35" radiator to be able to keep this thing significantly cooler? Should I look into a 160 t-stat?
04-13-2010, 11:09 PM
#3
The only way to currently get mine on high is to turn the A/C on. I dont have any switch wired in. But I'm not convinced it will be enough to bring the temps down, I need to keep the ECTs in the 190s to make sure I don't get any spark retard during the run. To be honest, I don't want to deal with a manual switch, I simply want the PCM to take care of it. Unfortunately, I don't think there are provisions in EFI live for this to be done. I think the only way GM ever set up the electric fans were for them to come on high while the A/C is turned on, even with the 2 pin setup. Looks like I may indeed need a manual switch.
04-13-2010, 11:50 PM
#5
The high speed on the fans makes a huge difference. I have my 2000 rigged up with the two pins and I can indeed make them come on low at one temp, and high on another temp, without turning the AC on. When I upgraded from LS1 fans to 05 fans, it helped a lot. They are almost twice as big as the LS1 fans.
04-14-2010, 06:36 AM
#7
The high speed on the fans makes a huge difference. I have my 2000 rigged up with the two pins and I can indeed make them come on low at one temp, and high on another temp, without turning the AC on. When I upgraded from LS1 fans to 05 fans, it helped a lot. They are almost twice as big as the LS1 fans.
