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Carbon Fiber connecting rods from AWA Composites/SEMA?

General engine tech -- Drag Racing to Circle Track

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midnightbluS10
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Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by midnightbluS10 » Thu Nov 01, 2018 2:54 pm

Anybody heard of this place? They've got a booth at SEMA and they're displaying carbon fiber connecting rods at a cost of $18k for a set. I'm assuming that's a set of 8, as they mention Top Fuel in the SEMA display. Their website also shows a few cf parts they say they intend to release in Q4 of '18 and Q1 of 2019. Supercharger rotors, pushrods, rocker arms, rods, and they even talk about FULL cf pistons and include a patent application number, 62535821. Says they hired Top Fuel crew chief Lee Beard, as well.

Anybody heard of them? The guys name is Arthur Warfield. There's a little info on the website. I was actually wondering if anyone could find any info on the patent application or any other patents they may hold. I didn't have any luck. They showed a patent application number for the pistons of 62535821 somewhere but I can't seem to find it. They also list what they're calling "serial numbers" 16/041,464 for the rods and 16/042,350 on the pistons. The rest say patent pending. Those look similar to patent #'s but I don't know enough to determine if they are in that form.

Besides that, what do you all think? I apologize if this is in the wrong forum. Wasn't sure where exactly to put it.


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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by lefty o » Thu Nov 01, 2018 3:10 pm

i think its a great idea, if they can maintain roundness on the ends. 18k for a set on the other hand, not for this guy.

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by CamKing » Thu Nov 01, 2018 3:19 pm

Better not detonate the engine with those rods.
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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by lefty o » Thu Nov 01, 2018 3:37 pm

CamKing wrote:
Thu Nov 01, 2018 3:19 pm
Better not detonate the engine with those rods.
any experience with them, or is this theoretical? just curious as depending on fiber layout, and epoxy carbon fiber is built with, it can have a good bit of flex in it. im sure it can be made very rigid too. idk, just thinking out loud.

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by strokersix » Thu Nov 01, 2018 4:20 pm

Maybe treat them as a fusible link. When one goes it just disintegrates, reducing collateral damage.

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by Nefario » Thu Nov 01, 2018 4:58 pm

Awful lot of square corners there for a composite part.... A bit of background research reads like the founder has been a successful entrepreneur in dental technology #-o and as they raise funding they plan to hire or contract the appropriate talent to actually develop specific parts.

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by Bazman » Thu Nov 01, 2018 5:35 pm

Great ideas, but I wouldn't be experimenting on my motor at those prices. If it works, they'll become more mainstream over time and the price will come down, especially once others figure out how to do it. I know someone in the industry that has owned his own CF business and will run this past him to get his take re the feasibility of what they claim

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by Bazman » Thu Nov 01, 2018 5:38 pm

3D printing is big in dentistry

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by exhaustgases » Thu Nov 01, 2018 5:45 pm

Carbon Fiber is what made the huge 787 delay. They found out that a lot of the special metal structures of former planes couldn't be replaced with carbon fiber.

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by Roundybout » Thu Nov 01, 2018 7:04 pm

What would it gain me having a 150g rod over say a 550g?

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by digger » Thu Nov 01, 2018 7:17 pm

Lower rotating mass will accelerate faster. Lower reciprocating weight will put less load into bearings for the same rpm

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by peejay » Thu Nov 01, 2018 8:51 pm

How do they make carpet fiber useful under a compressive load?

I remember the huge CF fad in the bike world. It ended up being as floppy and flexible as titanium but at twice the price.

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by j-c-c » Thu Nov 01, 2018 8:52 pm

I thought an alum rod was rather forgiving with any shock loading, which is why in an Alum rod has a limited life cycle because of fatigue. CF is stiffer per weight, seems that would increase loading on over items, even though being lighter. Is quicker acceleration a performance limit with TF motors now.?

I don't see the projected costs justified by the manufacturing process, other then they might be first out of the gate. Correct me if I am wrong again, but size, within reason is not an issue, as the part will need to occupy more volume then Alum, but that has some structural upsides.
Is this formed/cured under extreme pressure/heat?
Last edited by j-c-c on Thu Nov 01, 2018 9:22 pm, edited 1 time in total.

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by Mark O'Neal » Thu Nov 01, 2018 9:10 pm

CamKing wrote:
Thu Nov 01, 2018 3:19 pm
Better not detonate the engine with those rods.
That would seem to exclude Top Fuel.

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Re: Carbon Fiber connecting rods from AWA Composites/SEMA?

Post by exhaustgases » Thu Nov 01, 2018 9:12 pm

For the price they better come with a complete and total engine replacement warranty, in case one lets go. I've heard some of the problems with carbon fiber are cracking and separation from extreme heat and cold but that was quite a few years ago. The fibers may be strong, but I would think the concern would be the binder and how well it survives a hot oily environment. And how well does it handle the compressibility/ distortion of bolting a cap on the big end?

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