I'm not sure how well it would hold up, but do you really wanna risk losing oil to the turbo if the line blows? The turbo bearing won't last long at 100,000 rpm and no oil pressure. Check the yellow pages for industrial hose makers, or check your local parts house. Ask them. If the answer is no, have one made that's designed to take the heat and won't break down from the oil. Or replace the rigid line and loop it like brake lines from the master cylinder do. The loops will help isolate vibration.
Brake hoses will not hold up to oil, even a small amount of oil will turn them to mush in a short time.
if you think it's leaking from vibration try puting a few "loops" in like a brake line coming off a master cylinder. that is why they do it to brake lines.
Another source for hose and fittings and other stuff is Aircraft Spruce. www.aircraftspruce.com They carry both braided stainless hose and rubber covered high pressure aircraft hose in many sizes and the fittings to assemble the hoses etc. They have a free catalog with over 700 pages of stuff. Also a good source for 4130 steel tubing and aluminum tubing and sheet metal.
You might try putting a bracket on the steel line to steady it. Most of the big turbos that I work on use steel line, often with a braid end away from the turbo, for oil supply due to the excessive heat of the turbo. Losing oil pressure from a leaking flex line would be the least of your problems, think red hot turbo/hot oil.... We've had a couple go up quite nicely that way Flatman
The Jalopy Journal
