Reply With QuoteNo good unless you shield it better than that . Id have more steel pipe coming out of the block then you rubber hose covered with that red heat stuff .
Dave
turbo oil drain - is this ok??
now i know this setup is not ideal - but due to time and money constraints and simplicity, i was hoping to get by with this setup for time being.
basically, its a tust t78 turbo on a 7m with -4 teflon braid and and 3/4" rubber hose (oil) drain. no wthe main concern is how the rubber will cope with the heat. as u can see - it sits relatively close to the runner in 1 position.
i was going to run a small length of that red - extreme heat proof - sleeving over the top of this rubber.
will i get away with this?
Re: turbo oil drain - is this ok??
No good unless you shield it better than that . Id have more steel pipe coming out of the block then you rubber hose covered with that red heat stuff .
Dave
Re: turbo oil drain - is this ok??
Can you give an idea of the angle of the fitting at the block?
It's a bit of a guess, but I reckon the 3/4" oil drain on my 4AGZE is approx. 30 degrees from horizontal and it hasn't caused any problems yet.
Insulation of the rubber is probably a good idea, but a steel/stainless steel pipe is ultimately going to last longer.
"Don't worry what people think, they don't do it very often."Originally Posted by oldcorollas
Daily: Glorified Taxi (F6 Typhoon). Out Of Action: Twin-charged Adub. Ongoing Nightmare: Over re-engineered (not) Alfa Romeo 75.
Re: turbo oil drain - is this ok??
if i was to do that - the hose would kink
Re: turbo oil drain - is this ok??
Why dont you make a metal heat shield b/w the hose & heat source?
Re: turbo oil drain - is this ok??
no more then 20 - turbo and mani runners sit so low theres no avoiding this
Re: turbo oil drain - is this ok??
Why don't you just buy a length of silicone hose and use that? Will tolerate the heat and oil just fine. Get it at Pirtek/Enzed/similar.
Re: turbo oil drain - is this ok??
silicon only rated to about 200 degrees yeah?
if this is no good (which it seems so far that its not) will go the ideal solution of stainless steel convaluted tubing. not sure if the ribs will effect flow negatively
Re: turbo oil drain - is this ok??
this is the setup on my other car - given its only 12mm id and colvaluted, the fittigns are massive and clumsy, 28mm = shifter spec
Re: turbo oil drain - is this ok??
We use (not me personally) the red hose insulation that you're talking about quite extensively where I work for greese and hydraulic hoses and it does a dam good job.
So long as the hose can flow enough, I'd insulate your drain hose and give it a go. Having said that, I'd also be inclined to go the braided teflon hose route later (for longevity sake), but I'd insulate that too.
BTW, we make steel from scratch (to a large degree, 30% scrap steel), so the heat can get up there
"Don't worry what people think, they don't do it very often."
Daily: Glorified Taxi (F6 Typhoon). Out Of Action: Twin-charged Adub. Ongoing Nightmare: Over re-engineered (not) Alfa Romeo 75.
Re: turbo oil drain - is this ok??
Why do people assume that Braid is more heat resistant than other hoses? I have had 2 braided - 10 oil drains fail, and the latest heat wrapped Pushlock hose is coping fine.
Is braid necesarily better than others for heat resistance?
Re: turbo oil drain - is this ok??
I have a brand new 4 ply silicone hose, rated to 200+C, 18mm ID & 4mm wall thickness & 14cm legs, which you can have for $20 (posted).
You could also just wrap another heater hose around the existing one which will absorb a lot of the heat.
Last edited by BLACKCAT; 14-10-2010 at 06:16 PM.
Re: turbo oil drain - is this ok??
its actually worse as the braid will allow the heat thru via transfer and melt the hose or teflon inside, it is only on there for 2 reasons
1. no chance of it being rubbed through (but it will rub thru pretty much anything).
2. looks good.
Disturbed1 get some -12 Pushlok hose and some heatsleeve and it will be fine.
the rubber you are using probly isn't rated for oil and it can very quickly become a spongy oil-soaked/seeping mess causing a Guilty-spec OMGWTF7MBBQ.
cheers
linden
Re: turbo oil drain - is this ok??
i would avoid hydraulic hose - the inner lining can cope with the heat from hot fluid- but the outer sheath of most hydraulic lines is a fairly soft/compliant weave-enhanced rubber that won't cope with the radiant heat from the turbo.
I used 1" hydraulic hose for the drain from my 1st turbo and it went brittle within 12 months and leaked hot oil (from a bend point) onto the waste gate.
I also vote for silicone hose + heatsleeve but consider having the 1st section of the line made of steel tube
Re: turbo oil drain - is this ok??
i only planned to use this rubber for about 10 drag passes, and 1 track day - does this make any diff?
looking on the gates website - the hose i got is rated to 100 degree - doesnt sound like much when ive seen my oil temp guage well past that
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