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?

GlennCMC70 View Member Profile	May 2 2004, 02:44 AM Post #2
Veteran Member Group: Member Posts: 2,688 Joined: 23-December 03 From: Ft Worth, TX Member No.: 8	just an FYI, i saw a 30 degree temp change by just moving the temp sender from the passenger head @ the rear of the head to the top of the water pump @ the outlet (best place to read it IMO). if your water temp was only 140, your fans would never turn on! if your fans are turning on, your car is most likely @ 180 or better. have you used a pyrometer to check temps @ the radiator hose (the hose that is the return to the radiator - driver side)?