E34 M50 engine exhaust wrap

[ktteoh]

has anyone done this before using thermal wrap or ceramic coating ? is under hood temperature reduced?

if you are using thermal wrap, what is the total length of the thermal wrap material to cover all this exhaust branches of the extractor?

[ktteoh]

folks, anyone?

[Dave M]

I haven't heard this one yet. If you're considering wrapping the manifolds, I presume it would reduce the amount of heat emmited, but would also increase the amount of heat transfered to the catalytic converter and beyond.

Seeing as the engine is pushing a bunch of heat anyhow, what is your motive in wrapping the exhaust for a decrease in under hood temp?

Just wondering,

Dave M

[BillionPa]

if you want it done right, have the inside of the exhaust manifold ceramic coated (sterling i believe), and the outside thermal barrier coated. the advantage of coating the inside in addition to less heat through the metal is better flow of exhaust gasses. good time to have them machined when they are out too.

exhaust wrap can get messy over time.