BeCool vs Ebay
TECH Resident
Joined: Jun 2013
Posts: 853
Likes: 32
From: Kernersville, NC
Something is screwed up if a 160* stat is not cooling it better. My temps dropped 20* with that one change. Granted....I don't have a 396 though....
- Is the computer programmed correctly for the stat in use?
- Compression ratio of the new engine?
- Is the WP sensor temp reading close to temp reading of the head gauge sensor?
- Are you using the correct head gaskets for the LT1? The wrong ones may screw up coolant flow.
- How does the impeller size of the epump you have compare to the mechanical pump?
- Could the impeller be spinning on the WP shaft? I know it's new...but I've got bad new parts before...
- Does a mechanical pump cool it better?
Yes, the fans are almost always on under a certain speed. I'm using cometic head gaskets, 12.2 comp.. I've checked every aspect of the waterpump including proper rotation. Yes its been bled correctly with 75% water and 2 bottles of water wetter
Teching In
Joined: Aug 2021
Posts: 32
Likes: 3
Maybe I missed it, but if your condenser is original, it could be clogged with road debris. I had a cooling system nightmare. New water pump, new radiator, multiple caps,160, fan switch...still overheated. Ac compressor was the original and making noise so it and a new condenser were installed. Problem solved.
Check the condenser.
Check the condenser.
TECH Addict
Joined: Oct 2016
Posts: 2,513
Likes: 480
From: PDX-OR-USA
Are you using a temperature managed controller for the water pump? If not your likely getting "some"
wonder on temps just because it runs constant speed, while the engine load is variable, wonder
if the dash gauge is too slow reacting to catch it?
I use a cheap IR temp gun to check the inlet and outlet of the radiator to see what the temperature
drop across the radiator is at idle.
wonder on temps just because it runs constant speed, while the engine load is variable, wonder
if the dash gauge is too slow reacting to catch it?
I use a cheap IR temp gun to check the inlet and outlet of the radiator to see what the temperature
drop across the radiator is at idle.
Are you using a temperature managed controller for the water pump? If not your likely getting "some"
wonder on temps just because it runs constant speed, while the engine load is variable, wonder
if the dash gauge is too slow reacting to catch it?
I use a cheap IR temp gun to check the inlet and outlet of the radiator to see what the temperature
drop across the radiator is at idle.
wonder on temps just because it runs constant speed, while the engine load is variable, wonder
if the dash gauge is too slow reacting to catch it?
I use a cheap IR temp gun to check the inlet and outlet of the radiator to see what the temperature
drop across the radiator is at idle.
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Verdad Gallardo TECH Addict
Joined: Oct 2016
Posts: 2,513
Likes: 480
From: PDX-OR-USA
That's why I suggested checking the inlet and outlet temps on the radiator, you need to know if
the radiator is cooling the coolant enough to allow it to absorb the heat energy at whatever
power level your concerned about as it cycles back through the block. you should see a significant drop,
if your putting 11000 btu in to the radiator it has to shed 11000 to break even.
Good luck!
the radiator is cooling the coolant enough to allow it to absorb the heat energy at whatever
power level your concerned about as it cycles back through the block. you should see a significant drop,
if your putting 11000 btu in to the radiator it has to shed 11000 to break even.
Good luck!
Following up in case anyone needs this info in the future.
I bought a Cold Case radiator. It ended up clearing the ac lines but it's really tight. Like, the condenser wont completely slide into the hangers tight. But it seems to have fixed my issue. I've only got about 46 min run time right now but it was almost all idling the with ac on. Also took it for about a 5 min drive with a wot pull. Temp was rock solid at 180
I bought a Cold Case radiator. It ended up clearing the ac lines but it's really tight. Like, the condenser wont completely slide into the hangers tight. But it seems to have fixed my issue. I've only got about 46 min run time right now but it was almost all idling the with ac on. Also took it for about a 5 min drive with a wot pull. Temp was rock solid at 180