Tapeing LG supercool radiator - F-Body Road Racing and Autocross Forums

Since this is about as low tech as it gets, I am putting it here. Absolute, if you think it needs moved, feel free.

I have had the abosulte hardest time trying to get my engine temps up high enough that I feel safe. The combo of the Mexiere EWP and the LG supercool radiator w/ a 180* stat I CAN NOT get my engine temps above 140*. Even on the dyno with NO fan running it never went above 140. If it did right after a pull it would drop like a hot rock right back to 140*.

I saw an older post by Lou on LS1tech saying that some of us would have to "tape" the radiator to get out engine temps up to a normal operating area. What did he mean by "tape". Did he mean litterally tape over part of the radiator? And if this is right, what would I use? Duct tape, 200mph tape? And if I do use tape wouldnt the heat off the radiator melt the stick'um off the tape? i was going to use a pice of cardboard to block about 1/4- 1/2 the radiator and thought of using tape to hold it on but was worried about melting the tape.

Can anyone help me out with this?

NataSS Inc View Member Profile	May 1 2004, 08:50 PM Post #1
Advanced Member Group: Advanced Members Posts: 827 Joined: 30-December 03 From: Bellevue WA Member No.: 73	Since this is about as low tech as it gets, I am putting it here. Absolute, if you think it needs moved, feel free. I have had the abosulte hardest time trying to get my engine temps up high enough that I feel safe. The combo of the Mexiere EWP and the LG supercool radiator w/ a 180* stat I CAN NOT get my engine temps above 140. Even on the dyno with NO fan running it never went above 140. If it did right after a pull it would drop like a hot rock right back to 140. I saw an older post by Lou on LS1tech saying that some of us would have to "tape" the radiator to get out engine temps up to a normal operating area. What did he mean by "tape". Did he mean litterally tape over part of the radiator? And if this is right, what would I use? Duct tape, 200mph tape? And if I do use tape wouldnt the heat off the radiator melt the stick'um off the tape? i was going to use a pice of cardboard to block about 1/4- 1/2 the radiator and thought of using tape to hold it on but was worried about melting the tape. Can anyone help me out with this?

rmackintosh View Member Profile	May 2 2004, 11:46 PM Post #2
Senior Member Group: Advanced Members Posts: 5,226 Joined: 24-December 03 From: Danville, CA, USA Member No.: 27	QUOTE Help me understand this. Your thermostate is not suppose to open until the block temp reaches 180. So, the radiator has not seen the heated fluid yet, right? Therefore, the fluid in the block and heads is not getting hot enough to open the thermostate and is instead bypassing the radiator and being recirculated. Yeah...I would check the accuracy of the guage first...I doubt the LG radiator or any other for that matter will keep a car below 140 all the time. I myself, can idle ALL DAY Long at 150, but it goes up when romping on it...