Overcooling, odd problem! (Fixed...................................)
03-23-2015, 05:18 PM
#61
Elite Member
Thread Starter
iTrader: (16)
Join Date: Aug 2007
Location: Houston, TX
Posts: 9,297
Total Cats: 477
It is actually in a reasonably good position where it is, if you must use it. The oil is usually much warmer than the water when under a load. Getting that additional heat into the coolant prior to the radiator will cause the coolant to be at a higher temperature differential with the air flowing through the radiator, allowing it to remove heat more quickly. If placed in the bottom hose, the temperature of the coolant would likely be raised too high reentering the engine to be suitable for cooling. It would also cause the oil to be below optimum temperature at light loads, causing greatly accelerated wear.
Regarding all the feedback I've gotten in this thread, I'm going to do back to back testing with this setup and with the factory mixing manifold. As has been pointed out to me, majority is usually correct. I can directly measure heat exchanger effectiveness so I can measure air temps before intercooler, after intercooler, after radiator, AIT's before/after intercooler, and CLT's before/after radiator. When I get all these sensors working and the car sorted, I will test both setups and post the data. Given the amount of things I still have left to do, it could easily be a month to 3 months before I have the data as I'm still building the car and I little problems keep popping up that slow down progress. That will put testing in spring/summer in TX so should be nice and warm.
Reply
0
0
03-23-2015, 08:56 PM
#62
Senior Member
Join Date: Sep 2013
Posts: 923
Total Cats: 67
It is actually in a reasonably good position where it is, if you must use it. The oil is usually much warmer than the water when under a load. Getting that additional heat into the coolant prior to the radiator will cause the coolant to be at a higher temperature differential with the air flowing through the radiator, allowing it to remove heat more quickly. If placed in the bottom hose, the temperature of the coolant would likely be raised too high reentering the engine to be suitable for cooling. It would also cause the oil to be below optimum temperature at light loads, causing greatly accelerated wear.
Reply
1
1
03-24-2015, 12:55 PM
#64
Moderator
iTrader: (12)
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,652
Total Cats: 3,011
Well, one could use an air/water intercooler mounted in the exhaust stream and a pull cable style heater valve to use the wasted heat of the exhaust to pre-heat the coolant and get it up to proper operating temperature when needed.
Reply
1
1
Thread
Thread Starter
Forum
Replies
Last Post
Zaphod
MEGAsquirt
47
10-26-2018 11:00 PM
