Cobalt Autocross/Road Racing Video/Picture thread
01-30-2017, 10:13 PM
#27
01-31-2017, 03:25 PM
#30
03-01-2017, 03:50 PM
#35
Closing off the grill. I need to teach the boys to do it neater, hahaha.
Basically the more closed off the front of the car is, the more downforce you are making. With Trevor's Cooling package on the car, we can completely close off the upper grill (The top of it is already an aluminum plate) and depending on air temps, we can close off more and more of the bottom. Car still runs cool, and like i said we get a little more downforce out of it. Same reason the NASCAR guys do it. We have seen gains of up to a half second at the larger high speed tracks just by doing this.
Basically the more closed off the front of the car is, the more downforce you are making. With Trevor's Cooling package on the car, we can completely close off the upper grill (The top of it is already an aluminum plate) and depending on air temps, we can close off more and more of the bottom. Car still runs cool, and like i said we get a little more downforce out of it. Same reason the NASCAR guys do it. We have seen gains of up to a half second at the larger high speed tracks just by doing this.
03-01-2017, 05:36 PM
#36
Closing off the grill. I need to teach the boys to do it neater, hahaha.
Basically the more closed off the front of the car is, the more downforce you are making. With Trevor's Cooling package on the car, we can completely close off the upper grill (The top of it is already an aluminum plate) and depending on air temps, we can close off more and more of the bottom. Car still runs cool, and like i said we get a little more downforce out of it. Same reason the NASCAR guys do it. We have seen gains of up to a half second at the larger high speed tracks just by doing this.
Basically the more closed off the front of the car is, the more downforce you are making. With Trevor's Cooling package on the car, we can completely close off the upper grill (The top of it is already an aluminum plate) and depending on air temps, we can close off more and more of the bottom. Car still runs cool, and like i said we get a little more downforce out of it. Same reason the NASCAR guys do it. We have seen gains of up to a half second at the larger high speed tracks just by doing this.
Wow I did not know that. It's crazy to think a little tape on the grill can increase downforce. Do you know if it has more do do with total airflow volume or the actual overall surface area of the inlet? Like say hypothetically you have the same inlet area up front but you add an extractor hood so you are getting more volume through the same inlet area than before. Do you have less downforce with the extractor hood than without given the front inlet area is the same? Or is it about minimizing inlet area while trying to flow as much air through that area as possible?
Sorry if my question isn't clear I'm just intrigued.
03-01-2017, 11:05 PM
#37
At some point we plan to tuft the car with yarn and see the air patterns. I know with my rad fans on, you can feel it pull air out the extractor in the hood. The placement of the fender vents is done going off the principals everyone is following to evacuate air from under the car. The idea is if the cooling system can handle having more of it blocked off, the more flat area that forces air around (rather than letting it in) helps make more front downforce.
When I was still in NASCAR we used to make duct pans in front of the wheels to pull air from for the tires and brakes, rather than cutting holes in the nose, and that is kinda what i am following.
Hope that makes sense, im stupid tired right now, lol.
When I was still in NASCAR we used to make duct pans in front of the wheels to pull air from for the tires and brakes, rather than cutting holes in the nose, and that is kinda what i am following.
Hope that makes sense, im stupid tired right now, lol.
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jdbaugh1 (03-02-2017)
06-12-2017, 07:11 PM
#41
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2016 SCCA STU photos
finally got the car out for some racing, another regional championship with a cobalt. still much much work to be done to make the car competitive on the higher levels. car was stripped to bare body seam welded, caged and the entire harness gutted down tot the bare essentials, still 300lbs over weight, and going through rear wheel bearings like nobodies business. custom twist beam in the works. front lip- splitter also in the works, currently suspension is out for a tune up, hope to make a few races this year.
Last edited by stangetr; 06-12-2017 at 07:30 PM.
06-13-2017, 04:18 PM
#49
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can run lexan really the big savings i could use at the front, and running glass windscreen is nice. The cage adds a bunch of weight. I have to run the stock doors although on the driver side its gutted, even the crash bars, but still very heavy.
car or me needs to lose 300 lbs.
I'm thinking a larger rear bar and a splitter which will both add weight.
looking to into light weight hood and trunk light weight battery-might even spend the money for the lighter fire system.
and a diet
car or me needs to lose 300 lbs.
I'm thinking a larger rear bar and a splitter which will both add weight.
looking to into light weight hood and trunk light weight battery-might even spend the money for the lighter fire system.
and a diet
06-14-2017, 12:04 PM
#50
Alien Motion Lithium Battery - LiFePo4 Lightweight Power Sports Battery