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Re: Cooling issue [Re: SportF] #3153905
06/23/23 08:01 PM
06/23/23 08:01 PM
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South Bend
John Brown Offline
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"Those convinced against their will are of the same opinion still."

Dale Carnegie


July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
Re: Cooling issue [Re: John Brown] #3153921
06/23/23 09:59 PM
06/23/23 09:59 PM
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Omaha Ne
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TJP Offline
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Originally Posted by John Brown
"Those convinced against their will are of the same opinion still."

Dale Carnegie

i believe the best solution is to not start the car, then there will be no heat to dissipate. EOP twocents beer

Re: Cooling issue [Re: TJP] #3153924
06/23/23 10:41 PM
06/23/23 10:41 PM
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South Bend
John Brown Offline
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thumbs


July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
Re: Cooling issue [Re: terzmo] #3153931
06/24/23 12:03 AM
06/24/23 12:03 AM
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Phila
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Originally Posted by terzmo
Originally Posted by SportF
[i]
"Really. To much or fast flow rate may not give the radiator the time it needs to do its job. Thats not a rumor]" See, this is why it will never go away. The University of Minnesota has been the premier leader in the engineering of heat transfer since 1884.

No one in the study of heat transfer there at the U of M would agree with you. Either they are wrong, or the physics in your radiator are different than other places in the universe. I can't help but be sarcastic, as this has come up too many times. Think about it.....you can't have too much air flow, but you can have too much fluid flow??? I'm going with what they teach in engineering school.

Now, someone will come up with a story on how this guy did this or that and it proves I'm wrong. No, something else is going on in all of those cases as nobody gets to defy the laws of physics....anywhere in the universe. Good luck with the heat issue.

\
All I can tell anyone is the test ride last night in 82 degree heat and stuck in traffic the temp never hit 190. Before this I would of been forced to shut down on the side of the road as getting stuck in traffic and inching a few feet...stop..idle for minutes and repeat would drive the temp past 200 and climbing. I switched to a half inch shorter diameter pulley (now the pumps going to run faster, and installed a high volume water pump. . Now the water flow is even faster. That's it in a nutshell. You can give this feedback to the University if You care to. Of course it will; trying to move a larger volume thru same confines, will increase flow rate. With that increased flow rate, the radiator has to be compatible for that rate.

As a side note....engineers designed cars since day one. The cars made in the past 30 years or so should be worked on by these "engineers" as they have designed vehicles that are are real PITA to work on or impossible for a backyard mechanic who works them as a hobby.

Re: Cooling issue [Re: John Brown] #3153956
06/24/23 07:20 AM
06/24/23 07:20 AM
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USA
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360view Offline
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Originally Posted by John Brown
"Those convinced against their will are of the same opinion still."

Dale Carnegie


I like that quote.

Speaking of me....
Fools jump in where Angels fear to tread.

So i humbly submit the “modest” idea
that this heat transfer versus coolant flow argument
could be clarified by driving a manual transmission vehicle up and down a steady steep grade in each gear.
This would give data at different rpms and heat loads.
Even with an automatic trans there are various ways to “hold a gear.”

On downhill drives down a 4% grade you can go 60+ mph speeds with zero horsepower from the engine.

Many approaches to river bridges in hilly country are 4% grades.

Another good quote:

If you torture the data long enough it will confess to anything.

Re: Cooling issue [Re: 360view] #3153962
06/24/23 08:57 AM
06/24/23 08:57 AM
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Pendleton NY
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terzmo Offline OP
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Last edited by terzmo; 06/26/23 07:53 AM.
Re: Cooling issue [Re: terzmo] #3153992
06/24/23 11:18 AM
06/24/23 11:18 AM
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How to do a good test drive when facing cooling issues?
I feel you never stop learning about that subject if you keep an open mind.

Re: Cooling issue [Re: 360view] #3154007
06/24/23 01:12 PM
06/24/23 01:12 PM
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north of coder
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i keep on learning because i'm old, and the spiders in my noggin' keep covering up the stuff i know with cobwebs........... biggrin
beer

Re: Cooling issue [Re: moparx] #3154128
06/25/23 08:04 AM
06/25/23 08:04 AM
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Originally Posted by moparx
i keep on learning because i'm old, and the spiders in my noggin' keep covering up the stuff i know with cobwebs........... biggrin
beer


Reading and writing about a skill almost certainly helps the mind, especially if it then motivates you to use your hands on equipment challenges.

Sometimes others get testy with you for what you offer,
but the good quote is:

“Your enemies will yell truths at you
that your friends dare not whisper in your ear.”

Re: Cooling issue [Re: terzmo] #3154252
06/25/23 10:15 PM
06/25/23 10:15 PM
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Omaha Ne
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TJP Offline
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Originally Posted by terzmo
A few more irrelevant unwanted contributions to the topic.

my relevant ones were made much earlier but ignored so stirthepot popcorn

Re: Cooling issue [Re: 360view] #3154290
06/26/23 07:13 AM
06/26/23 07:13 AM
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I wish someone would build a cheap ultrasonic flow meter that you can touch to the outside of a hose so that these cooling questions could be less guess work.

https://en.m.wikipedia.org/wiki/Ultrasonic_flow_meter

My fuzzy memory was that I had to pay $1200 in 1981 dollars for an outside the pipe ultrasonic flow meter,
but it paid for itself many times when pumping 400 tons per hour of mixed rock sizes through a 12 inch ID pipe with 12,000 gallons per minute of water.

Re: Cooling issue [Re: TJP] #3154295
06/26/23 07:34 AM
06/26/23 07:34 AM
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Pendleton NY
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terzmo Offline OP
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Originally Posted by TJP
Originally Posted by terzmo
A few more irrelevant unwanted contributions to the topic.

my relevant ones were made much earlier but ignored so stirthepot popcorn


so

Last edited by terzmo; 06/26/23 07:53 AM.
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