Carbon Fiber Magic - Page 2 - Hyundai Genesis Forum
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post #11 of 29 Old 03-18-2009, 07:00 AM
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Originally Posted by Tufast View Post
I don't care how big an autoclave is used, as long as, my CF parts are made in one. As the information I'm putting up progresses, you will understand why.
Heres my next Carbon Fiber purchase!

Gibson Flying V New Century Electric Guitar with Carbon Fiber Pickguard

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post #12 of 29 Old 03-18-2009, 01:19 PM
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I've been working with carbon fiber for a few years now doing a lot of custom one off gear. I have to admit it has great benefits but mostly now the scene uses for astetics now than anything
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post #13 of 29 Old 03-18-2009, 03:14 PM Thread Starter
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I've been working with carbon fiber for a few years now doing a lot of custom one off gear. I have to admit it has great benefits but mostly now the scene uses for astetics now than anything
I don't want my car looking all CFd out (ricer), just want to save a chunk of weight, but keep structural integrity.

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post #14 of 29 Old 03-19-2009, 10:13 AM
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never said you wanted to go "rice" and if you tell me the gt35R full dry carbon or a few show winning CF cars are "rice" which is funny. I just meant it's part of our scene now adays. CF is not rice unless you got like stupid bits and peices everywhere. I just finished off two cars, a C6 and a mazda 3 with CF interiors. and trust me it's not rice at all. the trick it to always make CF functional on top of utilization. if done correctly you can make a car look great and have less weight at the same time. and yea using it for accents inside and out can work if done properly. CF is a double edge sword for this.
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post #15 of 29 Old 03-19-2009, 11:15 AM Thread Starter
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never said you wanted to go "rice" and if you tell me the gt35R full dry carbon or a few show winning CF cars are "rice" which is funny. I just meant it's part of our scene now adays. CF is not rice unless you got like stupid bits and peices everywhere. I just finished off two cars, a C6 and a mazda 3 with CF interiors. and trust me it's not rice at all. the trick it to always make CF functional on top of utilization. if done correctly you can make a car look great and have less weight at the same time. and yea using it for accents inside and out can work if done properly. CF is a double edge sword for this.
Oh...I wasn't trying to imply that you were suggesting that I'm leaning toward rice, even though Jrod may disagree. I was just saying that my personal use of CF will be for weight savings only & not for asthetics (if it enhances asthetices fine), while at the same time mentioning that most CF on cars nowadays is just kids buying fiberglass laminated w/CF that ends up looking ricey. I kept my post too brief now that I reflect back on it.

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post #16 of 29 Old 03-19-2009, 01:11 PM
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that's very true. I'll admit that. but so you know I'm developing parts with a company local who does alot of full CF work and deff his pride in what they do. no fiberglass laminated W/CF shit. true CF peices. so if you guys have ideas Just PM me bc they were just here and we were discussing on developing parts for the car.
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post #17 of 29 Old 03-19-2009, 03:08 PM Thread Starter
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Cool, I'm definately interested. Are your parts going to be done wet or dry carbon?

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post #18 of 29 Old 03-20-2009, 04:33 AM Thread Starter
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Reality of Tuner Parts


The one process most common with carbon fiber for general purpose is called dry fiber. this is where the carbon fiber is laid into a mold while the resin is poured in & brushed over each layer that is applied. This process is very similar to how people work with conventinal fiberglass & resin. The problem with this method is that air pockets can form, which adversely affect the integrity of the product. Secondly, the impregnation of the carbon fiber cloth is inconsistant as best. This can result in a heavier product (from too much resin), or a weak product (too little resin). More importantly, there will be a varying level of resin penetration throughout the product, which will result in inconsistant strength. So be forewarned.

Curious as to how a manufacturer building parts in more serious numbers went about the process of building carbon fiber components, we made a visit to K&N engineering. We had the opportunity of peeking into the Advanced Composites Fabrication Facility, where K&N manufactures carbon fiber scoops & air boxes for spring cars, as well as, carbon fiber heat shields for some of it's Typhoon intake kits.

K&N uses the pre-impregnated carbon fiber material, which already has the resin impregnated within the carbon fiber mat. The pre-impregnated carbon fiber is maintained in a frozed state to prevent its curing. By using prepreg carbon fiber, there is less mess when working with the raw material, it is easily handled, there is nothing to spill or mix, & nothing to clean up. The carbon fiber is simply cut & laid into a pre-made mold, in as many layers that are needed for the desired thickness & resulting streength.

Once the desired thickness is aquired, the mold is then placed into a vaccuum bad. Vacuum is used to create a negative pressure that extacts ambient air & holds the carbon fiber firmly against the mold during the curing process. Each mold has it's own vacuum port that is connected within the autoclave prior to the curing process. In order for the carbon fiber to become solid, it must be heated to approximately 270 degrrees F for the resin to properly cure. By using the autoclave, it's possible to have very consistant results & a very durable product by using high temeratures & vacuum, which help form the carbon fiber into a compact package.

Once the curing process is complete, the molds are removed from the autoclave & the carbon fiber product is removed by using a tool similar to a putty knife. Some minor trimming of excess carbon fiber is removed & the product is given a quick wiper down with a cleaner/polish material before being packaged for shipping. Products like the lid that goes on the end of a filter receive an additional process to bond it to the filter material.



1. K&N engineering stores its pre-impregnated carbon fiber mat in freezers at 0 degrees to prevent the resin from curing prematurely.
2. Once the carbon fiber mat is removed from the freezer, it's sized & cut.
3. Here are the cut pieces prior to being placed into the mold.
4A,B. The carbon fiber is carefully placed into the mold.
5. Here we can see the mold inside a vacuum bag. A gauge shows -70kPa of vacuum is used for this part.
6. The molds are placed into the autoclave & connected to vacuum lines. The autoclave heats the carbon fiber to 270 degrees F in order to cure the resin in the carbon fiber.
7. Once the piece is dried, it is removed from the mold.

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Last edited by Tufast; 07-19-2009 at 09:52 PM. Reason: spelling
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post #19 of 29 Old 03-20-2009, 04:37 AM Thread Starter
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Man, I'm glad that I decided to post this & even more pleased that I'm having to rewrite the whole thing to make it legible. I say this because I didn't realize how long it's been since I've read this article &/or researched carbon fiber. I forgot a lot of info & considering how much I will be investing in CF parts, it's good to take a refresher course. For anyone interested in purchasing ANY CF parts, these pages I'm presenting are a must read IMO.

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Last edited by Tufast; 03-20-2009 at 09:03 AM. Reason: spelling
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post #20 of 29 Old 03-20-2009, 08:35 AM
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^ lol I know been brushing up in my CF shit too. been awhile since I've made CF parts and now it's the it thing.

Tufast: I started a thread on the services and ideas on what I wanna try to get made. so let me know.
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