Strain gage for, measuring downforce |
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Strain gage for, measuring downforce |
Randal |
Apr 27 2009, 02:23 PM
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#21
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
Anyone know of a strain gage that measures in lbs or kg's that I can use to measure the downforce of my new rear spoiler. I plan on mounting it underneath the truck lid between the lid and the fiberglass frame. Like where the arrows are pointing:
I figure if I can find something that reads the downward force I can just set it up with a video camera pointing at the gage, drive down the freeway. with the car on the trailer and get some readings. |
john rogers |
Apr 29 2009, 09:35 PM
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#22
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Senior Member Group: Members Posts: 1,525 Joined: 4-March 03 From: Chula Vista CA Member No.: 391 |
One way to make a "sucker car" that the tech guys would never figure out would be to draw the engine air from under the center of the car, just in front of the firewall in front of the engine. It has no heat from the engine exhaust but would have a lot of dust and such until the race course, whatever type it is is fully cleaned off. The old IMSA 914s did this since they do need engine cooling air and the big old vacuum behind the rear window is trying really hard to lift the car up. In a race car, it is cleaned after every race and the race teams would figure fan replacement as part of normal maintenance every few races. If you check some of them you'll see vent ducting coming up from the floor pan and that is what it is. Some racers get the engine coolong air from the front trunk which helps but gives no down force.
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