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Lamborghini Is Forging Ahead with Forged Carbon Fiber

blog.caranddriver.com

51–60 of 108 posts

Re: Lamborghini Is Forging Ahead with Forged Carbon Fiber

#51
post #48
post #37

Earlier quoted context omitted.

More petrolheads on HN than I expected!

It gets worse. I ran http://selfracingcars.com/ a few weeks ago, too.

Ooh, awesome. I've never run Chump Car but I've got about 10 24 Hours of LeMons races under my belt. There IS something about driving a not-yours (or at least not-expensive) car wheel-to-wheel vs a trackday.

Re: Lamborghini Is Forging Ahead with Forged Carbon Fiber

#52
post #2

Has Lamborghini ever made a car that had actual technical merit as a racecar? I'm general, supercars are vastly overpriced for what you get. You can easily crush most for a fraction of the price with a dedicated track car. But simultaneously, no supercars are remotely practical on the road, and in fact are not even fun to drive on the street because of speed limits. Some supercars have been a good investment, such as…

Do enthusiast car engines last longer than track car engines? Because I remember hearing that true track race car engines last a very short amount of time before they need work done. Maybe because they live at higher rpms?

One number I've heard cited is that one track mile equals three street miles. So an engine that you might expect to last perhaps 300k miles before it was a bit tired would only last 100k track miles.

Actual racecar engines are rebuilt very frequently (same for dirtbike motors, etc).

"sports cars" (Miata, Corvette, whatever) are going to be like any other street car in terms of longevity, but something like a Ferrari or Lamborghini will probably need some work before it reaches a few hundred thousand miles.

Re: Lamborghini Is Forging Ahead with Forged Carbon Fiber

#53
post #12

Earlier quoted context omitted.

I've got a Honda cbr600, love it. But a top Ducati sport bike costs 40k, not 400k.

Which bike are you looking at? The 1299 Panigale S is $25,500. The Superleggerra 1199 (only 500 made) was 70k+.

I don't know how we got to talking about this, but Honda makes a road legal MotoGP replica* bike for $184k.

*Minus the pneumatic valves and probably a few other things.

Re: Lamborghini Is Forging Ahead with Forged Carbon Fiber

#54
post #9

Earlier quoted context omitted.

"because it's bleeding edge and we can"

See that's my point: you can buy a track car for a fraction of the price that is objectively more bleeding edge. The track car has faster lap times, which is the reason one is buying the car. You can argue it's the fastest car that also has an air conditioning unit, I suppose. Hell, I saw someone running a '94 F1 open-wheel car around COTA last month. He said he purchased it for less than 100k. No supercars would com…

How many track days can he run with his F1 car before he needs the engine to be rebuilt from parts that no longer exist?

Re: Lamborghini Is Forging Ahead with Forged Carbon Fiber

#55
post #2

Has Lamborghini ever made a car that had actual technical merit as a racecar? I'm general, supercars are vastly overpriced for what you get. You can easily crush most for a fraction of the price with a dedicated track car. But simultaneously, no supercars are remotely practical on the road, and in fact are not even fun to drive on the street because of speed limits. Some supercars have been a good investment, such as…

Don't disregard arguably the best supercar of them all: the early 1990s Acura NSX. ;) Reliable, gorgeous, powerful, thrilling, and depending on when you bought it over the last couple decades ... A decent investment even.

Re: Lamborghini Is Forging Ahead with Forged Carbon Fiber

#56
I would predict that this manufacture method, with many small cut-up pieces of carbon, is going to produce relatively weak parts in comparison to equivalent twill prepreg, thus you'll need more carbon to reach the same strength and it will be heavier.

Carbon is good in tension because you're pulling a whole bunch of atomically perfect lightweight strings, but when you have chopped up fragments like this you're really only casting resin with reinforced mashed bits. Additionally, in real carbon parts you orientate the fabrics to get perfect tension/compression in the direction of the loads, or use multiple orientations bonded together for good all-round strength, but this manufacture method would have randomly oriented fiber directions.

Re: Lamborghini Is Forging Ahead with Forged Carbon Fiber

#57
post #2

Has Lamborghini ever made a car that had actual technical merit as a racecar? I'm general, supercars are vastly overpriced for what you get. You can easily crush most for a fraction of the price with a dedicated track car. But simultaneously, no supercars are remotely practical on the road, and in fact are not even fun to drive on the street because of speed limits. Some supercars have been a good investment, such as…

If you're a company making Veblen goods, the last thing you want is to make something that's worth all that money. Then it's not a Veblen good any more!

Aha, interesting, I'd never heard of Veblen goods before this. I'd also never thought about it in this manner before, making it a better product would make it actually worth the money, and hence less desirable.

The world is such a weird place.

Re: Lamborghini Is Forging Ahead with Forged Carbon Fiber

#58
post #2

Has Lamborghini ever made a car that had actual technical merit as a racecar? I'm general, supercars are vastly overpriced for what you get. You can easily crush most for a fraction of the price with a dedicated track car. But simultaneously, no supercars are remotely practical on the road, and in fact are not even fun to drive on the street because of speed limits. Some supercars have been a good investment, such as…

Well yeah but since Audi bought them they actually have decent guts as opposed to just being really pretty show ponies. The Aventador was an R8 with a really good bodykit and there was NOTHING bad about that, it was the first Lambo in a long time that could actually take a corner at speed.

Not really.. the first generation R8 was offered with a choice of V8 and V10 engines versus aventador which comes with a v12 option only. Nor does the R8 have the carbon fiber tub or the suspension of the aventador.

Re: Lamborghini Is Forging Ahead with Forged Carbon Fiber

#59
post #42
post #41

Earlier quoted context omitted.

The CBR250RR is one of the best-sounding bikes ever made. Gotta love screaming about at 20K RPM. I wish I could see one in person; sadly, they’re not too popular in the UK. Greetings from a Cagiva Mito rider.

Cheers, yes they did sound amazing. :-) I went on and got myself a GSXR600 a year or so after, got it tuned for my weight, and the difference that made the handling was simply astounding. Sadly I was made to sell it... Not a great bike for the road at all, but I have some very fond memories of taking it to the track where it belonged.

Years ago I raced in the Ducati Desmodue series in the UK. Class B, aircooled, twin cylinder Supersport and Monster 600 bikes, putting out around 50-55bhp. Once you had those things set up properly and on a twistier circuit, like Cadwell Park or even Brands Indy to an extent, sliding past bigger bikes through the corners was a lot of fun. Even if they passed again on the straight, one could often pass back under brakes into the corner. Good times.

Re: Lamborghini Is Forging Ahead with Forged Carbon Fiber

#60
post #52

Earlier quoted context omitted.

Do enthusiast car engines last longer than track car engines? Because I remember hearing that true track race car engines last a very short amount of time before they need work done. Maybe because they live at higher rpms?

One number I've heard cited is that one track mile equals three street miles. So an engine that you might expect to last perhaps 300k miles before it was a bit tired would only last 100k track miles. Actual racecar engines are rebuilt very frequently (same for dirtbike motors, etc). "sports cars" (Miata, Corvette, whatever) are going to be like any other street car in terms of longevity, but something like a Ferrari…

>One number I've heard cited is that one track mile equals three street miles

That is most certainly wrong, depending on how you drive on the street, unless you're the guy/lady in the 5,000lb SUV flooring it and slamming on the breaks between every stop light then maybe. I have some experience with track cars, even a long time ago was involved in Allison Legacy racing--those cars use an engine straight out of a Mazda truck. I can tell you, when they sit all week and you do nothing but race them on weekends, they don't put out even 1/3 of the miles they would as a well-maintained road car.

>Sports cars" (Miata, Corvette, whatever) are going to be like any other street car in terms of longevity

Miata's are reasonably reliable, but Corvettes most certainly are not. Ferraris and Lambgorghinis used to spend more time in the shop than on the road, but they've gotten better. A lot of enthusiasts credit the Acura NSX with that.

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