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Discussion Starter · #1 ·
Why should I choose Carbon Fiber over OEM sheetmetal, of regular Fiberglass for that matter? I understand weight, but is that the only difference? What are the Pros and Cons of each?
 

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Discussion Starter · #3 ·
Right now I'm looking at 450 shipped for an OEM style CF hood, and about 250 shipped for the actual OEM hood. But even if I get the OEM hood, I'd have to paint it.
 

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Steve said:
Right now I'm looking at 450 shipped for an OEM style CF hood, and about 250 shipped for the actual OEM hood. But even if I get the OEM hood, I'd have to paint it.
I got a steel aftermarket hood for 99 Canadian dollars by looking in the yellow pages for body supply shops or something like that. It was in my area too. You should be able to do the same. There's no way in hell I'd pay $250 US for even a Ford factory hood!
 

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OEM Metal:
  1. cheap if salvaged : expesive new
  2. designed to fold up safely and predictably during a head-on collision
  3. heavy
  4. very durable when painted properly

Composite:
  1. expensive : very expensive if made well (carbon & carbon/kevlar)
  2. not designed with safety in mind. there have been instances of well made carbon fiber hoods punching through windsheilds.
  3. light : very light if made well
  4. durable if built well.. otherwise easy to crack, sensitive to heat, and deteriorate under UV light (the sun)
 

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Discussion Starter · #8 ·
TitoElSpicco said:
You can buy my hood for $100.
Then I could buy one at a junkyard for $20. :)

Hit up "You Wrench It" down by the beach. They always have Escorts, if you just need a replacement hood.
I'm actually looking for one for the Tiburon. I was at UWI on Saturday, no such luck with it, all they have is an Elantra wagon, which I got the dual radiator assembly and drivers side airbag from. Do you know of any other good JY's near here? Something with a pull it yourself, preferably.
 

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The only other one I use is in Deep Creek (Chesapeake) near the powerplant. Look up Ford St. (I have the streetsign sitting next to me :) )in Chesapeake on mapquest to get an idea of where it is. They're REEEALLY cheap, but the cars are sitting in mudholes, so take boots. :)
 

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From an engineering perspective, there's no need to use CF for hoods. CF has a high tensile strength, and if you lay it out in sheets in the right patterns, it can resist various loads. My mountain bike is actually made out of carbon fiber...

but for hoods... all they do is cover stuff. whoever came up with the idea of a cf hood was probably just cashing in on the fad. I've found that many products that come out really aren't well designed from an engineering perspective. They're just hype. CF hoods are hype. There's no need to make a strong hood out of something like CF because it's not held to the chassis rigidly enough to promote structural rigidity.
 

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siragan said:
From an engineering perspective, there's no need to use CF for hoods. CF has a high tensile strength, and if you lay it out in sheets in the right patterns, it can resist various loads. My mountain bike is actually made out of carbon fiber...

but for hoods... all they do is cover stuff. whoever came up with the idea of a cf hood was probably just cashing in on the fad. I've found that many products that come out really aren't well designed from an engineering perspective. They're just hype. CF hoods are hype. There's no need to make a strong hood out of something like CF because it's not held to the chassis rigidly enough to promote structural rigidity.
I totally agree with that!
Chevy did , however put a CF hood on the 2004 Z06 LeMans Edition for weight reasons, but even then the owners are just going to go to work and shopping in them so it's useless. The Z06 was already the lightest Corvette in history and the CF hood took off another 40 pounds.I picked up one at the Corvette Museum and it was as light as a feather. I think you have to put some kint of protective finish on a CF hood anyway, so if that's true then that notion of the advantage of it not needing to be painted is out the window.

About getting a hood at a junkyard:
I've never seen one that wasn't as rusty as the one I was trying to replace. Do you guys have some secret in finding them?
I mean 2nd gen Escort hoods are notorious for rusting from inside on the front seam very early in their lives. Maybe if some dude got a new hood right before totalling his car you can get lucky if someone did't beat you to it. I got a headlight that way once.
 

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Discussion Starter · #12 ·
Thanks, I think I'll find a regular hood locally, if possible. The hood that I have isn't terribly bent out of shape, but I'd rather have something that will look better.

I am having a windshield installed on thursday by Glassmasters, for only 171 dollars.
 

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Yeah, CF hoods really did evolve out of the racing world where every lb counts. Tito, of all people here might be a good candidate for one, since he's on a serious weight-loss campaign. Jo-Blow and his civic HF with 300lbs of stereo equipment would be better off without one.

Because the hood is located so high up (the hood is pretty far above a car's CG) the effect on handling is noticable.

Most CF hoods on the market are fiberglass with a single CF weave layer on top. These are mostly cosmetic, since the weight loss will only be a few measly lbs. Fiberglass is about 3 times heavier than CF. In order for a composite hood to use the stock hinges and latches there has to be a stout frame underneath.. which is usually made of fiberglass, but in the high-end hoods is made of a carbon/kevlar weave. In race-cars, the carbon fiber hood is usually just a thin sheet... sometimes with a lightweight support system underneath, and uses hood pins. You don't want to tie down your new $$$ hood with pins and park it on the curb.

The old ZR-1 Vette was probably the first application of CF this side of a Ferrari* and used it for several body panels.

* (the F40 used CF extensively.. and, is still the quickest Ferrari ever made)


^ This is incorrect :oops:
 

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I did not know the ZR1 had CF. Where was the CF?
I did not know the F40 is still the quickest Ferrari. The Enzo is pretty stupifying. Still not as Quick as the F40? Are you talking 1/4 mile or 0-60 or what?
I love little bits of trivia like that. Like Nigel Mansell won the first and the last 3.5 liter race!
 

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In my eyes, one of the best things about composites is the corrosion resistance. My bike is made out of CF, magnesium, and aluminum (and costs more than my escort GT) and it never rusts, which is fabulous. However, I don't know what effect UV radiation has on CF. That's probably what the protective coating is for.
 

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MadBrad said:
I did not know the ZR1 had CF. Where was the CF?
I did not know the F40 is still the quickest Ferrari. The Enzo is pretty stupifying. Still not as Quick as the F40? Are you talking 1/4 mile or 0-60 or what?
I love little bits of trivia like that. Like Nigel Mansell won the first and the last 3.5 liter race!
DOH! I could have sworn I was right about the ZR1 using CF on several body panels in place of the normal fiberglass.. but I just spent some time looking it up at zr1.net and found nothing. Sorry, Brad (and everyone else).. I was just talking out my ass again.

I've seen figures in 0-60 for the F40 range from 3.5s-3.8s and 11.8s in the 1/4mi

The Enzo's 0-60 time is 3.5s as well, but according to supercars.net, it's 1/4mi time is only 11.2s 8O

So again, I was talking out my ass. Pardon me. :oops:
 
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