Silicon Induction hose - turbo diesel - negative pressure??

[Mark2]

I'm looking at at replacing the induction hose on my TD42 turbo.
Its the hose running between the air box on the inner guard and turbo air intake. Currently its a wire reinforced fabric hose which is hard to seal at either end using hose clamps.

I'd like to use a 3" silicon elbow to replace the existing wire reinforced fabric hose.

The question is, will the silicone hose collapse ie does the intake have negative pressures or does it never get less than atmospheric pressure on the inlet side of the turbo? The silicone turbo hose is good at withstanding positive pressures, but I suspect it would collapse under negative pressures.....

[v6hilux]

Its bloody obvious!

The turbo intake is negative pressure because of the restrictive flow caused by the air filter element, like a vacuum, so it is possible you will get cavitation of the pipe. How bad it is is inknown to me, but if it is a short length, it may not be a problem. Long length may be a problem.

[j-top paj]

wont work.
if you already have the hose then try it, but if you need to go and buy it, dont bother

[GRINCH]

go to a truck shop and buy some rubber intake bends, cheaper then silicone and are designed for the job

[rvh96]

the silicone hose will do it easly it wont colapse under the vacuum of an air inlet and its rated to 80psi

[ausyota]

I have seen the silicone hose suck in in applications on big trucks.
It is designed for + pressure not -
You really want something with a wire reinforced wall like some type of ducting.

[me3@neuralfibre.com]

If you have any more than 1psi vacuum, you have intake problems to be fixed.

Airfilters (if not stuffed) only account for 5% of intake restriction. That's why perf airfilters are a wank, spending $100 to fix 5% of the problem is silly.

Most intake restrictions are from mesh screens, no bellmouths going from box into pipe, and corrugated pipe (very very poor flow)

Paul

[Mark2]

I have seen the silicone hose suck in in applications on big trucks.
It is designed for + pressure not -
You really want something with a wire reinforced wall like some type of ducting.

My main issue with the wire reinforced stuff is sealing under the hose clamps - I just dont trust it to be an airtight seal with the wire running under the clamp.