carbon exhaust,is it possible???

[ferenc]

I'm thinking i know somewone that work with carbon fiber.Is it possible to make a corbon fiber exhaust since the downpipe?Of will the heat burning it??



The sounds are great i think and it's not a lot of work a couple of 3 inch carbon pipe and bend's en that's it.


Or i'm talking drivel?

[Bibby]

I doubt very much whether it would indeed withstand the heat.

[The Spanish]

I dont know. TVR tuscan has a carbon exhaust end and some bikes, ask Lee for this.

Can you make me a Carbon Strut brace, please

Cheers

[CR500Dom]

No Chance.....

would just about get away with the end can, but far too hot everywhere else even with phenolic resins.

F1 cars still use Nimonic or Inconel Manifolds, as do WRC Cars with Titanium Exhaust systems to reduce weight.
HTH
Dom

[quattronutter]

i used a tuscan rear box on my sport quattro,it got pretty hot,i dont think anything further forward than rear box would survive on an s2 as there is plenty of generated heat from engine and turbo,tuscan rear box sounds awesome on a 5 pot motor though...

[Bibby]

I have a custom 3" stainless on my avant.

I dropped into Tesco to use their jetwash today, straight off a dual carriageway which I had just been bimbling along at the speed limit (cough).

I was surprised to see water boiling on the rear box when I started to wash the car!

[Keeper of The Kitten]

As Dom says, if it was possible, F1 would be doing it already. The end cans on bikes etc. are outer cans or covers, the actual pipe inside is still s/steel and there is a gap between the two. The F1 guys leave a bit of plain carbon around their outlets on the bodywork, but it's probably like that because burnt paint isn't very nice.

Inconel was always the real deal for exhausts on race cars, but it is horrendously expensive and I think you need to weld it in a special gas shielding (not mig or tig). I vividly remember a pile of V10 Toyota sportscar pipes on a pallet at work and asking what they were worth (no use to anyone as Group C had been canned) - the reply was "about £50,000" - ouch!

Hey Karlos, maybe we could have a fry-up with eggs, bacon and all the trimmings on your rear box?!!

__MDC__

[porkkis]

i used a tuscan rear box on my sport quattro,it got pretty hot,i dont think anything further forward than rear box would survive on an s2 as there is plenty of generated heat from engine and turbo,tuscan rear box sounds awesome on a 5 pot motor though...

On your what?!

You have a SPQ? Huh.

[quattronutter]

used to have a sport replica a few yrs back,my mate used 3 inch copper pipe for an exhaust on his old 3litre westminster,after a run you could see it glowing underneath!!!

[Bibby]

Hey Karlos, maybe we could have a fry-up with eggs, bacon and all the trimmings on your rear box?!!

__MDC__

Now THAT would make a quality video clip!

Will have to remember to try this when I get back from Spain!

[The Spanish]

We have analyze carbon exhaust is not possible, but if you can get carbon really cheap we do have many oportunities.

(Repiting myself) Front strut brace.
Any other suggestions? (Carbon wishbones should be great )

[CR500Dom]

Inconel was always the real deal for exhausts on race cars, but it is horrendously expensive and I think you need to weld it in a special gas shielding (not mig or tig). I vividly remember a pile of V10 Toyota sportscar pipes on a pallet at work and asking what they were worth (no use to anyone as Group C had been canned) - the reply was "about £50,000" - ouch!

__MDC__

Where did/do you work then ?
I worked on the TOM`S Group C Toyotas 3.4L 32V Twin Turbo V8`s......1200hp in Qualifying trim
Inconel exhaust manifolds for them were £20K a side
Windscreen was £20K too
Proper cars ..........Used to do the Carbon work and Bodywork for them
Laters
Dom

[ferenc]

So it is not possible??It will burn?

And no i don't get carbon cheap. but i was thinking and a carbon exhaust can never cost a lot off money.Its not a lot of work to make it.

And the silencer of carbon???

carbon is great

[Keeper of The Kitten]

Yep, carbonm will burn!!!

@ Dom - I worked at TOM'S after the Gp C days were over (ie after the V10 cars). Still had a V8 biturbo in reception when I started, but it was old by then!

Were you based at Hingham?

I'm still working at the same place now, but it's RTN (Racing Technology Norfolk) these days, has been since 1998. This week was my eleventh anniversary of starting at the place (didn't get a cake - mind you, I didn't get parole for good behaviour either). Easy to remember when I started at the place - it was the first working day after the black weekend of Imola 1994...

My first job was working on the little F-Toyota single seater, did the updated design to double wishbone and biplane wing, new bodywork etc, under supervision of Frank Cockup (Coppuck) - remember him?!!!

Went on to work on the F3 cars, a teeny weeny bit of stuff for the super tourers, and later on the LMP1 project and ultimately (as RTN) on the Audi closed car and the Bentleys which brought home the bacon in 2003. Jeez, the windscreens got a lot cheaper by then, and they were heated (made by Isoclima). Mind you, we were the only team making a closed car for the 900kg classes, and the output of those things was probably only 650-700bhp. Still pretty nippy motors though!

All seems a long time ago now! F3 was by far the most fun, it was also Hiroshi's pet favourite I think! I did some design work on those (along with Andy Thorby, Martin Ogilvie, etc) and worked as Data Acquisition at tests and races for some time.

Did a little bit of design on the Tommy Kaira (Tomita) car as well, just some small subframe bits and mirror mountings, minor stuff like that.

Very different place these days!

__MDC__

[Gringo]

Carbon is gonna burn for sure. This is what the exhaust system looked like in my old car after a few doughnuts in the snow.

http://home.online.no/~pa-guill/Car%20Movies/Glowing%20manifold%20and%20turbo.WMV

After a minute or so, we realised we had to swith the camera to "night cam" postion as the color red is diffcult to capture on tape at night.

Btw: The car is a 1998 A4 1.8TQS producing roughly 240bhp.

Another much longer clip wich involves the driving of a rental car. We wanted to se how much a stock setup would glow in comparison.

http://home.online.no/~pa-guill/Car%20Movies/HowToMakeTurbosGlow.WMV

Stock 1999 A4 1.8TSQ

Still winter tough...