hey guys i know this is an old thread but when i saw it, it made me think why not. i work as a PVC/ABS machine operator we make all types and sizes of pvc pipes here in melbourne. as i can get my hands on anything i want i might as well give this a try.
we test 1 out of every 100 pvc pipes made b4 they go out in the yard to be sent off. they will hold pressure up to 30bar(441psi) for 1.2hours (depends on wall thickness and size)
and i see this as no problems 4 pvc to hold vacume and boost pressure of say 30psi. as for the heat on the turbo side i would use thick walled pvc pipe on that side only. as it only takes about 2-5mins on 180Degrees for pvc to start to soften in a oven.
so i would use thermo warping around the turbo side to stop it from Direct heat. but u will Notice as soon as pvc is Exposed to direct air or anything under 180Degrees it will Harden right away.
dont Underestimate the strenght of pvc. and remember that all PVC has a 20year Warranty/Guarantee of any burst/rupture or Impacted Failure. if it has failed call up the Manufacture where the pipe has been made and they will replace it with no questions asked...
PS- if ur plaining of doin this make sure u only use pressure pipe only coz there is lots of crap out there like Stormwater pipe lol
with this information no is Responsible for any damage but yourself. so do it at ur own risk and post up on here wat u f.u.c.k.e.d up hehe