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Old 06-24-2019, 03:06 AM   #46
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Default Re: Basics of Radiator Cooling

I bumped this thread because the search function is useless and it took me 15 minutes to find it for someone. So I thought I would bring it into the present day so it can seen again.
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Old 06-24-2019, 11:22 AM   #47
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Default Re: Basics of Radiator Cooling

Definitely some great info in this thread!

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Anyone want to take a crack at explaining the benefits of "water wetter" additives used in the cooling systems? If not, I'll try to get to that at a later date....
Is it later yet?
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there is nothing in an LS that will support more hp per CID than a Gen 1... absolutely zero.
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Old 06-24-2019, 12:45 PM   #48
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Default Re: Basics of Radiator Cooling

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Definitely some great info in this thread!

Is it later yet?
Yes, I guess it is. I'll try to put down some info soon on the water wetters.
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Old 06-24-2019, 12:47 PM   #49
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Default Re: Basics of Radiator Cooling

Looking forward to it!
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there is nothing in an LS that will support more hp per CID than a Gen 1... absolutely zero.
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Old 06-24-2019, 03:36 PM   #50
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Default Re: Basics of Radiator Cooling

I used water wetter in my zx6-r race bike(road race not drag) and used it last year in my monte. Both times it made the motor run cooler and cool off faster. My ZX6R would come off track about 10 degrees cooler after 7-10 laps. My Monte was about 5-10 degrees cooler cruising and would definitely cool down faster as well. This season I still have anti-freeze in my Monte because I havent been to the track yet and it was noticeably warmer when cruising today. However the Monte likely has too high of an anti-freeze mix in it right now. It was winter and I just dumped pure coolant to top it off just to make sure it wouldnt freeze.
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Old 06-25-2019, 05:35 PM   #51
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Default Re: Basics of Radiator Cooling

Tore down a friends motor with some type of water wetter and the block look like mud looked just like water and oil mixed in the block.
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Old 06-26-2019, 02:34 PM   #52
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Default Re: Basics of Radiator Cooling

Just water wetter and water, or was there also antifreeze?
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there is nothing in an LS that will support more hp per CID than a Gen 1... absolutely zero.
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Old 06-26-2019, 04:41 PM   #53
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Default Re: Basics of Radiator Cooling

What's your take on flex fans? I've seen some rated to 10,000 rpms.
thx!
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Old 06-26-2019, 06:39 PM   #54
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Just water wetter and water, or was there also antifreeze?
It was just water but it had been in for a few years the car never ran hot either I looked up and seen some pics of what people said they used water wetter and it turned to mud I believe his , it was a combination of age and not servicing.
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Old 06-26-2019, 07:10 PM   #55
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Default Re: Basics of Radiator Cooling

Some water wetters contain cellulose which can turn to mud.
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Old 06-27-2019, 02:50 AM   #56
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What's your take on flex fans? I've seen some rated to 10,000 rpms.
thx!
I will only comment in a general way. Belt driven fans have the advantage of moving more air when the engine is not at idle and "revved up". That means the car is also moving which means air movement for forcing most of the needed air thru the radiator is already available. So the mechanical fans usually have to be over-sized to compensate and allow them to flow enough a lower engine speeds. That's why OEMs started using thermo-clutches to moderate the speeds as needed.

Electric fans have the advantage of moving 100% of their capacity when the car is idling or moving slowly. Plus they can be turned on/off or speed controlled as needed.

So if you wanted to cool a road race car, a mechanical fan would be your choice. If you want to cool a drag car or a normal daily use car, an good electric fan will provide plenty of air movement when the vehicle is not moving fast enough to force most of the air needed thru the radiator for cooling.
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Old 06-27-2019, 10:13 PM   #57
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I would like to hear what you have to say about radiators. I am having a problem with my 572 getting warmer and warmer the faster you drive. I read that was a sign of to small of heat exchanger. The car is a 70 Monte with a factory 4 core radiator and dual Spal pullers.
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Old 06-28-2019, 01:39 AM   #58
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Default Re: Basics of Radiator Cooling

Quote:
Originally Posted by Topfun99 View Post
I will only comment in a general way. Belt driven fans have the advantage of moving more air when the engine is not at idle and "revved up". That means the car is also moving which means air movement for forcing most of the needed air thru the radiator is already available. So the mechanical fans usually have to be over-sized to compensate and allow them to flow enough a lower engine speeds. That's why OEMs started using thermo-clutches to moderate the speeds as needed.

Electric fans have the advantage of moving 100% of their capacity when the car is idling or moving slowly. Plus they can be turned on/off or speed controlled as needed.

So if you wanted to cool a road race car, a mechanical fan would be your choice. If you want to cool a drag car or a normal daily use car, an good electric fan will provide plenty of air movement when the vehicle is not moving fast enough to force most of the air needed thru the radiator for cooling.
Thanks very good info IMO!!
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Old 06-28-2019, 02:18 AM   #59
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Default Re: Basics of Radiator Cooling

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I would like to hear what you have to say about radiators. I am having a problem with my 572 getting warmer and warmer the faster you drive. I read that was a sign of to small of heat exchanger. The car is a 70 Monte with a factory 4 core radiator and dual Spal pullers.
Water pump, ignition timing, transmission, rear gear ratio? I assume this is a crossflow brass radiator?

I'd ask about the SPAL fans but since you mention getting hot on the highway at higher speeds I'd expect that with both the fans and air from moving at higher speeds, it doesn't sound like problem with air flow.
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Try not to take everything so literally. Just because someone suggests it's time to deal with the Elephant in the room doesn't mean you should break out the peanuts.

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Old 06-28-2019, 07:42 AM   #60
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The water pump is currently a Weiand. I tried an Edelbrock and a stock pump. The Edelbrock water pump on my sbc used an impeller that resembles a turbo impeller, but the Edelbrock impeller for the BBC looked like a stock pump impeller. But, all 3 pumps performed the same on my car.
The timing was 26 initial and 36 total mechanical, with 10degrees in the vacuum can. It is currently locked out at 34. The rear gear is 3.73. You are correct on the radiator, the flow is side to side. The dual pullers are not shrouded, and I tried removing one to see if the fans were impeading air flow and did not change.
I put an air dam below the core support and the slowed it down, but temps still keep climbing.
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