Exhaust temp

[Webbgh0st]

Hey, I was just wondering how hot does the average temerature get in a manifold on a 4cyl, I am atempting to make a turbo Mani out of carbon fiber but the resin that I have avalible to me is only rated for 800 degrees Celsius. ( like 1400 degrees F) I searched And found that it can get up to about 300 C. But I would like some other opinions

[MPR]

....I'm guessing it would melt into a nice blop of carbon fiber.

[Webbgh0st]

The carbon fiber itself wouldn't melt, it would just Frey apart. the resin is the issue here

[MPR]

Yeah, finding a resin that will handle those kinds of temps would be difficult. Never heard of a carbon fiber exhaust manifold before.

If it's a turbo manifold, you're going to run into higher exhaust temps and pressures as well...

Good luck with it. If you do figure it out, post it up!

[Webbgh0st]

Yea, im trying to make a turbo manifold, (log style) and I am going to pressure test it on Monday to c if it has any chance of holding. I'll post up the results when I'm done on Monday

[josh19wrc]

F1 cars still use metal exhaust manifolds... they are the kings of weight reduction, so, Im sure if it was possible, they would be doing it.

[BoostGear]

Originally Posted by Webbgh0st

Hey, I was just wondering how hot does the average temerature get in a manifold on a 4cyl, I am atempting to make a turbo Mani out of carbon fiber but the resin that I have avalible to me is only rated for 800 degrees Celsius. ( like 1400 degrees F) I searched And found that it can get up to about 300 C. But I would like some other opinions

At wide open throttle most of my turbo cars hang out around 900* C and those are mostly pump gas tunes, so with better fuel I will push it higher. On smaller turbo's and a cast iron exhaust manifold one my older eclipses would hit almost 1100* C during a fifth gear pull.

Someone below mentioned F1 and he is correct, if this was possible, the guys with 200 million dollar R&D programs would be doing it.

[Webbgh0st]

Lol yea, I was on another forum and they told me the same thing lol.

ohh well I guess Ima just have a carbon fiber header I can sell on eBay..... Somone will buy it hahaha

[turbof22a]

ill give you fifty liras and a ball of lint for it right now.