High Performance Radiator Cooling Tips - Team Camaro Tech
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post #1 of 18 (permalink) Old Oct 18th, 11, 08:50 AM Thread Starter
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High Performance Radiator Cooling Tips

If you have a custom built, turbo-charged, super-charged, or other high output engine in your car, you probably need better cooling. You might even consider a new high performance radiator. If you've put in a new radiator and you're worried it's not quite enough, here are a few radiator cooling tips to get a little more efficient out of your radiator cooling system:

Don't use a 50/50 anti-freeze mix. Water is more efficient at transferring heat than anti-freeze. If you live in a climate where 50/50 is not strictly required (i.e. it never goes below -34 degrees), then you can probably get away with a 70/30 or less (but always leave at least a little anti-freeze in the system for corrosion and build-up protection).

Use bigger hoses. Fatter hoses let your coolant move more quickly through the system. With less resistance, the water pump doesn't have to work as hard, so you may get a little more coolant throughput or a little less draw of power from the engine (both good things).

Get a new pump. This is especially true for older cars. Old pumps are just not very efficient by today's standards. Today, you can get high output pumps that move more coolant with less power, leaving your engine cooler and with more power available to spin those wheels.

Never use a reducer. Reducers are a big myth. Let your thermostat determine when and when not to move coolant. And when you are moving coolant, you want to move as much as you can, especially in high horsepower environments.

Raise the pressure. Higher pressure means a higher boiling point. A higher boiling point means more efficient cooling. A new radiator cap is usually all that is required for this (but make sure you don't overpressurize - you'll balloon your new radiator cores and wreck the whole system).

Add more surface area. If none of the other radiator cooling tips can get your engine cooled enough, you probably have to add a bigger new radiator. No matter what a radiator is made from - copper, brass, aluminum, steel, lead - the more surface area, the better. Of course, each type of material has its own advantages and disadvantages and you will have to figure out what suits your requirements best.

http://www.radiator.com/article-high-performance.html

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post #2 of 18 (permalink) Old Oct 18th, 11, 11:53 AM
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Cool Re: High Performance Radiator Cooling Tips

Quote:
Originally Posted by onovakind67 View Post
... a few radiator cooling tips to get a little more efficient out of your radiator cooling system: ...


Use bigger hoses. Fatter hoses let your coolant move more quickly through the system. With less resistance, the water pump doesn't have to work as hard, so you may get a little more coolant throughput or a little less draw of power from the engine (both good things).

Add more surface area. If none of the other radiator cooling tips can get your engine cooled enough, you probably have to add a bigger new radiator. ...

http://www.radiator.com/article-high-performance.html
Good post

And ...

Don't forget;

* to use an Internal Spring in the pump inlet hose (or specifically reinforced hose) to prevent high negative suction pressure from collapsing the hose and restricting the flow at speed.

* to identify when/where your system is not providing sufficient cooling during operation;
- low speed overheat will 'usually' be attributed to air flow over the radiator being not sufficient to allow for good heat transfer from the system.
- high speed overheat (or overheat under most off-idle conditions) will usually point to the system being undersized (rad./pump/hose[s] & etc.) for the application or the system has a restriction (like a colapsing pump intake hose ) that is preventing proper circulation of water/coolant through the system to disipate the heat.

All this will assure you can operate your vehicle no matter what type of driving you do and what the outside conditions are

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post #3 of 18 (permalink) Old Oct 18th, 11, 12:09 PM
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Re: High Performance Radiator Cooling Tips

The anti dreeze yeah agree on the anti freeze but still use the anti corrosion component of the ant freeze.
And the difference between a black surface and chrome or polished semi polished surface ablity to transfer heat is dramatic.....paint cooling surfaces mat black

A huge majority of engine cooling is by the oil system....thru tappet covers and sump etc, even the block its self.... large cooling areas here finned sumps and tappet covers and again make the use of matt black, particularly effective in these areas
old saying "Chrome for show , Black for Track" rings very true.

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post #4 of 18 (permalink) Old Oct 18th, 11, 03:26 PM
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Re: High Performance Radiator Cooling Tips

Another tip often over looked - use a good fan shroud. Without a fan shroud the fan isn't going to do a good job of pulling cool air through your radiator when you are at low speed or sitting still.

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post #5 of 18 (permalink) Old Oct 18th, 11, 04:54 PM
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Re: High Performance Radiator Cooling Tips

Good post, indeed.

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post #6 of 18 (permalink) Old Oct 20th, 11, 06:23 PM
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Re: High Performance Radiator Cooling Tips

Just wondering if anyone has first hand experience with Evans Coolant. Read a very interesting story on its attributes back some months ago but realize it does have a cost factor. Also read an excellent answer in HotRod or one of the mags on overheating and the answer on checking the pulley diameters to make sure your turning your water pump enough but darn if I can remember the recommended ratios. I saved that article and placed it somewhere..... Anybody else read that?
Good info in this thread

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post #7 of 18 (permalink) Old Oct 20th, 11, 06:49 PM
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Re: High Performance Radiator Cooling Tips

Typically, water pump pulley is overdriven by 30%.

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post #8 of 18 (permalink) Old Oct 21st, 11, 04:42 AM
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Re: High Performance Radiator Cooling Tips

Great post indeed. I'll soon be facing buying a new Rad. for my RS build and these tips will help.

I'm considering a 4 core aluminum for my ZZ427, I hope that is adequate?

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post #9 of 18 (permalink) Old Oct 21st, 11, 05:33 PM
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Re: High Performance Radiator Cooling Tips

Great stuff!
4 cores are going the way of the dinosaur. Thickness is the key. A two core, same thickness as a 4, will have less restriction to flow.

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post #10 of 18 (permalink) Old Oct 24th, 11, 03:43 PM
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Re: High Performance Radiator Cooling Tips

a big one that was overlooked
ONLY USE DISTILLED WATER!!!!!
I use evans coolant personally which is far supierior that coolant/ water mix.


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post #11 of 18 (permalink) Old Oct 24th, 11, 09:31 PM
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Re: High Performance Radiator Cooling Tips

Quote:
ONLY USE DISTILLED WATER!!!!!
Yeah or Filtered deionized , but that only applies and depends on the quailty of your local water supply...be very careful with bore water.
Water with ground salts and dirt degrades the anti corrosion chemicals in the anti freeze very quickly.

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post #12 of 18 (permalink) Old May 11th, 13, 04:30 PM
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Re: High Performance Radiator Cooling Tips

Quote:
Originally Posted by dawg View Post
a big one that was overlooked
ONLY USE DISTILLED WATER!!!!!
I use evans coolant personally which is far supierior that coolant/ water mix.
Wow, nice tip, never considered this,
will note down this tip,
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post #13 of 18 (permalink) Old May 17th, 13, 07:56 PM
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Re: High Performance Radiator Cooling Tips

I did that with distilled water and antifreeze. But I have read that with distilled it pulls the ions out of the antifreeze decreasing its effectiveness and without antifreeze will pull the ions out of the base metals of block, intake, etc. and cause corrosion. I'm not a metalurgist but I understand the concept.

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post #14 of 18 (permalink) Old May 17th, 13, 08:45 PM
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Re: High Performance Radiator Cooling Tips

One of the most informative posts I have read. Lot of science behind the cooling system.
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post #15 of 18 (permalink) Old Sep 4th, 13, 04:12 AM
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Re: High Performance Radiator Cooling Tips

If you use distilled water make sure you use a anti-corrision additive. I ran just distilled water in a aluminum radiator and in about 4 years had a few holes in it. The vendor said it was from electrolise, but I took my ohm read and it read 0 ohms from the ground. So I don't believe that was the reason.

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