Front spoiler's effect on cooling - Team Camaro Tech
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post #1 of 8 (permalink) Old Jun 2nd, 02, 04:45 PM Thread Starter
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Today I went to chassis dyno my car, so I took the front spoiler off so it wouldn't get in the way of the straps they you to hold the car. Usually on the highway my car will run right at my thermostat, which is a 180*. But with the front spoiler off it was running about 15 degrees warmer. Unless there is something else wrong, I think the front spoiler has a pretty good effect on cooling. Anyone else notice this?

68 468 700R4, and here it is;
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post #2 of 8 (permalink) Old Jun 2nd, 02, 05:20 PM
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It may be that straped to a chassis dyno, you aren't getting the same air circulation as you would driving on the highway.

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post #3 of 8 (permalink) Old Jun 2nd, 02, 06:14 PM
David Pozzi
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It should aid air flow through the radiator. The spoiler blocks some of the air from entering under the car, making for a lower pressure area under the engine, this should pull more air through the radiator at highway speeds.

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post #4 of 8 (permalink) Old Jun 3rd, 02, 03:19 AM Thread Starter
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Igotta, I guess I worded it wrong. I meant to say I took the spoiler off at home, and while driving to the dyno the temps on the highway were more than usual. Front spoilers are good for several reasons, .
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post #5 of 8 (permalink) Old Jun 3rd, 02, 03:23 AM
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In the 70's I put a front spoiler on my 240Z and saw the same cause/effect. Neat!

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post #6 of 8 (permalink) Old Jun 3rd, 02, 03:28 AM
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I agree with what David said about the air flow and the low pressure under the car but it's a bit puzzling that you jumped to 195 without the spoiler. Knowing my own experience's, my first '69 didn't have a spoiler and ran 180 steady as a rock.
I don't know of anything different done to non spoiler cars to keep this from happening.

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[This message has been edited by DjD (edited 06-03-2002).]
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post #7 of 8 (permalink) Old Jun 3rd, 02, 03:56 AM
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Dennis, the way I see it, it depends on how close to the edge the cooling system is on a particular car.

If your cooling capacity was on the edge with the spoiler and then removed it, it could have an effect. If you had excess capacity before removing the spoiler, it may have no effect when removed. The factory did not change the cooling system when a spoiler was added so it was not an issue for stock or mild configurations in original condition.

Just a logical guess.

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post #8 of 8 (permalink) Old Jun 3rd, 02, 04:54 AM
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Mark (stingr69) I agree, you said exactly what I couldn't find the words to say. It's hard to suggest to someone who's temps run 180, that their system may not be functioning at it's potential.
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