cold operation
Intermediate
Joined: Jan 2021
Posts: 49
Likes: 12
From: Chicago
That seems low for operating temp but consensus is that's normal. I don't use car in winter but if I did I would close the vent doors on either side of the rad fan. I think there are 4 on each side they can either swing open in the wind or you can snap them closed with a click. Remember to reopen in spring.
Team Owner
Joined: Sep 2000
Posts: 25,029
Likes: 2,719
From: Far NW 'burbs of Chicago
St. Jude Donor '13
LEARNED Something new today! I've seen the radiator flaps / vents on the side. Added up they do account for a huge available surface area on the radiator. I cant believe how much of it GM left blocked (on a 650 700hp car with MAJOR cooling struggles), i believe theres 6 or 8 of them? Id say probably about 33% surface area is closed off with those unless you're over 30-40mph and they open up. I never inspected them throughly to see you can prop them open somewhere. That's genius. I was just going to drill them open or cut them off for track cooling. Much easier solution if we can just keep them open
Last edited by Gearhead Jim; Feb 10, 2022 at 02:40 PM.
