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

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.