INTENSITY²
Start here => What's your crime? Basic Discussion => Topic started by: Scrapheap on October 26, 2007, 11:31:11 PM
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Well, we're down to the final 2 races of the season and we're 3rd in points, but only 1 1/2 rounds out of the lead (30 points out of the lead, 20 points per round win) and we (Robert Height) qualified #1!!!!!!!!!111eleventyone!!!!
Qualifying results thus far (http://www.nhra.com/content/news/results/25146.htm)
Too bad I couldn't make it to this weekends race in Las Vegas. :grrr: :grrr: :grrr: :grrr: :grrr:
Here's a pic of the #1 Qualifyer, Robert Height. Note the unpainted carbon-fiber body, that is 20 lbs lighter than a painted body.
[attachment deleted by admin]
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Is paint that heavy?
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Is paint that heavy?
You'd be suprised. I stripped the paint off my dragster frame and used gun blueing on it instead, and saved 9 lbs.
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Is paint that heavy?
You'd be suprised. I stripped the paint off my dragster frame and used gun blueing on it instead, and saved 9 lbs.
A litre of water = 1 kilo in metric. It figures that to not paint a car would make it lighter. I'd also imagine paint is a lot denser than water depending on what type of paint it was.
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Is paint that heavy?
You'd be suprised. I stripped the paint off my dragster frame and used gun blueing on it instead, and saved 9 lbs.
A litre of water = 1 kilo in metric. It figures that to not paint a car would make it lighter. I'd also imagine paint is a lot denser than water depending on what type of paint it was.
Yes, but paint dries, so I wondered how much weight dry paint adds. It seems like such a thin layer, but apparently it adds up.
9 pounds is pretty subtantial, especially when every bit of weight you can save helps.
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Couldn't the carbon-fiber be a lighter
body?
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Couldn't the carbon-fiber be a lighter
body?
like what? polystyrene? there can't be many materials with that kind of strength to weight ratio.
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Is paint that heavy?
You'd be suprised. I stripped the paint off my dragster frame and used gun blueing on it instead, and saved 9 lbs.
A litre of water = 1 kilo in metric. It figures that to not paint a car would make it lighter. I'd also imagine paint is a lot denser than water depending on what type of paint it was.
Yes, but paint dries, so I wondered how much weight dry paint adds. It seems like such a thin layer, but apparently it adds up.
9 pounds is pretty subtantial, especially when every bit of weight you can save helps.
I should know the answer to this question, yes, paint dries, however, you use a fair few litres of paint to do a car properly, so I can see some of the logic.
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The layer isn't so thin either, most automotive finishes are acrylic based and once you've got a basecoat, some colour and lacquer on top it soon adds up.
<<--- used to work in a body shop :P
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The layer isn't so thin either, most automotive finishes are acrylic based and once you've got a basecoat, some colour and lacquer on top it soon adds up.
<<--- used to work in a body shop :P
My family ran one for two generations, that's what I was getting at, there is actually a lot on there if it is a good paint job..
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fucking hell... we have something in common. my dad's been in the trade most of his working life, I grew up in garages. was too cack-handed to follow in his footsteps though other than as a 'get' :P
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fucking hell... we have something in common. my dad's been in the trade most of his working life, I grew up in garages. was too cack-handed to follow in his footsteps though other than as a 'get' :P
You would never have guessed, would you? :P Yes, I'm a girl and I've detailed cars and sanded them ready for painting (so really, I guess that makes 3 generations). I was a bit of a gun at it, but you know, it was just for money outside of school in afternoons and night time - we used to work long hours. I could zone out and just do it.
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Couldn't the carbon-fiber be a lighter
body?
like what? polystyrene? there can't be many materials with that kind of strength to weight ratio.
:asthing:
I meant lighter than whatever the painted body is
made of. :laugh:
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Is paint that heavy?
Yeah, all you have to do is lift up a gallon can of paint, then figure out how many cans of paint were used to paint a given item. The average auto body can take take from two to four cans of paint, when you figure in not only the top coat that you see, but also the primer, and the initial antirust coating over the bare body panels.
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the can weighs too though.
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Is paint that heavy?
You'd be suprised. I stripped the paint off my dragster frame and used gun blueing on it instead, and saved 9 lbs.
A litre of water = 1 kilo in metric. It figures that to not paint a car would make it lighter. I'd also imagine paint is a lot denser than water depending on what type of paint it was.
You reduce air resistance by painting it, plus you also protect the car from corrosion etc.
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I wouldn't have thought smooth carbon fibre would have much more air resistance than a painted surface... and I wouldn't think corrosion of carbon fibre would be much of a problem given that its non-metallic.
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i apprechiate yer ethusiasm for races scrap but for some reason i'd rather watch paint dry than car races :P
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I wouldn't have thought smooth carbon fibre would have much more air resistance than a painted surface... and I wouldn't think corrosion of carbon fibre would be much of a problem given that its non-metallic.
Oh, it corrodes, but not like metal. I believe carbon fiber is quite stable.
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I wouldn't have thought smooth carbon fibre would have much more air resistance than a painted surface... and I wouldn't think corrosion of carbon fibre would be much of a problem given that its non-metallic.
Oh, it corrodes, but not like metal. I believe carbon fiber is quite stable.
It can react with aluminium, though.
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thanks for the re-direct scrap
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I wouldn't have thought smooth carbon fibre would have much more air resistance than a painted surface... and I wouldn't think corrosion of carbon fibre would be much of a problem given that its non-metallic.
Oh, it corrodes, but not like metal. I believe carbon fiber is quite stable.
It can react with aluminium, though.
Ya think?
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I wouldn't have thought smooth carbon fibre would have much more air resistance than a painted surface... and I wouldn't think corrosion of carbon fibre would be much of a problem given that its non-metallic.
Oh, it corrodes, but not like metal. I believe carbon fiber is quite stable.
It can react with aluminium, though.
Ya think?
http://www.sheldonbrown.com/rinard/carbonqa.htm
Q: On your web site you have indicated that aluminum and carbon fibre react so as to cause cathodic corrosion. Is this also the case with steel or cromoly steel and carbon fibre?
A: Yes, it is a problem with steels as well as with aluminum alloys. The easy solution is to prevent contact. One way to do this is to include a single light ply of fiberglass in the layup as an electrical insulator between the metal and carbon. Trek did this with their bonded aluminum lug carbon tube bikes. Specialized did too, and Kestrel uses small patches of fiberglass in the fork and frame where metal parts attach. Aerospace structures do the same. See NASA's document TM-584C, CORROSION CONTROL AND TREATMENT MANUAL.
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Thanks, but I get it.
Maybe it is a colloquialism, but here, we say "Ya think?" to someone who has stated the obvious.
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Thanks, but I get it.
Maybe it is a colloquialism, but here, we say "Ya think?" to someone who has stated the obvious.
Lol, over here its taken at face value.
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Thanks, but I get it.
Maybe it is a colloquialism, but here, we say "Ya think?" to someone who has stated the obvious.
Lol, over here its taken at face value.
Not always- I've heard plenty of people use it in the context that dirtdawg did- but I suppose its harder to tell without the incredulous tone of voice. :laugh:
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Thanks, but I get it.
Maybe it is a colloquialism, but here, we say "Ya think?" to someone who has stated the obvious.
Lol, over here its taken at face value.
Not always- I've heard plenty of people use it in the context that dirtdawg did- but I suppose its harder to tell without the incredulous tone of voice. :laugh:
It must be the snooty area I live in... :laugh: