Hi guys.
I have to do a carbon plenum wet laying for an atmosferic V6 with ETB.
My plan was a initial and final layers of 200gr and 4 layers of 450gr in between, with 1 extra layer of 450 in some curves.
For each layer i was thinking on doing the following  ->
for the bottom part of the plenum one across long sides of the and one on each shorter side with an extra strap of about 7cm wide to overlay the union in each corner

Will you do it like this or differently ?

 

Definitely more layers.  Probably 2-3mm thick.  In broad brush terms, carbon is similar strength to aluminium and a cast or welded plenum would likely be 3mm or thicker to handle decent levels of vacuum or boost. 

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

+x

 

Warren (Staff) - 11/23/2021 5:24:32 PM

Definitely more layers.  Probably 2-3mm thick.  In broad brush terms, carbon is similar strength to aluminium and a cast or welded plenum would likely be 3mm or thicker to handle decent levels of vacuum or boost. 

to be fair - the wall thickness of such a cast part is probably just as much dictated through manufacturing limitations.

Your part would however immensely benefit from a sandwich construction. With that geometry it would also be quite easy to manufacture. I would however use a rohacell or similar and not a honeycomb. That seems just like a struggle and end up heavier.