AndyW
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| posted on 28/12/15 at 11:55 AM |
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Turbo oil feed.
Morning all,
Hope we all had a great Christmas.
Just starting my 2.0 blacktop turbo build and was after some advice as to where to take an oil feed from to feed the turbo? I have the return line
sorted, just interested in where anyone has taken the feed from.
Thanks
Andy
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big_wasa
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| posted on 28/12/15 at 12:40 PM |
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There are two ways to do it.
Take a T from the low oil pressure switch.
Or how Ford did the Focus Rs.
There is a second blanking plug on the back of the block left of the low oil pressure switch. It's the same 1/4 npt fitting. Ford used a 1/4npt
to m10 adapter. You can buy a
1/4npt to m10 adapter on eBay.
1/4npt to m12 adapter on eBay.
eBay Item eBay Item
[Edited on 28/12/15 by big_wasa]
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coozer
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| posted on 28/12/15 at 01:01 PM |
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I've already decided on the oil feed like wasa.
But, got any pics of the return to block? Interested to see how you've done that.
Cheers,
Steve
1972 V8 Jago
1980 Z750
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AndyW
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| posted on 28/12/15 at 01:30 PM |
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quote:
Originally posted by coozer
I've already decided on the oil feed like wasa.
But, got any pics of the return to block? Interested to see how you've done that.
Cheers,
Steve
Having looked again and now clocked the turbo to correct set up, my plan was to run the return onto the blocked off breather plate, but that is now
higher than the bottom of the turbo, so will probably drill and tap into upper sump.
Will have another close look later and get back to you.
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madteg
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| posted on 28/12/15 at 02:18 PM |
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Are you going to fit a restrictor or run full glow to it.
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coozer
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| posted on 28/12/15 at 04:18 PM |
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You need a restrictor to stop it blowing past the seals dont ya???
1972 V8 Jago
1980 Z750
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AndyW
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| posted on 28/12/15 at 04:29 PM |
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Pretty sure the restrictor is in the oil inlet on my turbo. Will check.
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big_wasa
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| posted on 28/12/15 at 05:34 PM |
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Yeh I am sure the banjo in my td04 is restricted to around 1mm.
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CosKev3
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| posted on 28/12/15 at 07:46 PM |
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Oil returns from turbos should be below the normal oil level in the sump ideally,as if they are above the oil level crank case pressure can restrict
the return of the oil from the turbo and cause issues with your turbo bearings/seals.
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coozer
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| posted on 28/12/15 at 08:39 PM |
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Ifnthe return is below the oil level would that not cause problems with surge in corners etc??
1972 V8 Jago
1980 Z750
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CosKev3
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| posted on 28/12/15 at 08:59 PM |
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quote:
Originally posted by coozer
Ifnthe return is below the oil level would that not cause problems with surge in corners etc??
I doubt the bore of the oil return pipe would be big enough to be affected by surge?
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coozer
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| posted on 28/12/15 at 10:14 PM |
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Surely if your breather system is pants it doesn't make any difference? Pressure on the oil pushes it down and up the pipe.. Gas pressure up
the return will not hinder a dribble of oil as long as the return pipe is a good diameter.
1972 V8 Jago
1980 Z750
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sdh2903
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| posted on 28/12/15 at 10:24 PM |
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I was under the impression the turbo oil drain should be just above the level of oil. The drain oil pressure from the turbo is very low and any
restriction will cause issues. Well that's what I'm planning on my mx5 turbo build as that's how most do it. Either into the sump
above oil or in through the dipstick hole.
Happy to be proven wrong tho.
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coozer
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| posted on 28/12/15 at 10:35 PM |
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quote:
Originally posted by sdh2903
I was under the impression the turbo oil drain should be just above the level of oil. The drain oil pressure from the turbo is very low and any
restriction will cause issues. Well that's what I'm planning on my mx5 turbo build as that's how most do it. Either into the sump
above oil or in through the dipstick hole.
Happy to be proven wrong tho.
I'm with you. The more I Google it the more inconclusive it becomes. But the more I think about it going back above the oil level makes more
sense.
Originally I was going to ask if the return should be pointing down inside the sump to stop it going onto the crank!!
1972 V8 Jago
1980 Z750
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CosKev3
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| posted on 28/12/15 at 11:15 PM |
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Perhaps it just refers to big power Cosworth engines with lots of crank case pressure,as this was what I was running at the time.
Newer breather systems might not cause the crank case pressure problems.
quote:
Originally posted by sdh2903
I was under the impression the turbo oil drain should be just above the level of oil. The drain oil pressure from the turbo is very low and any
restriction will cause issues. Well that's what I'm planning on my mx5 turbo build as that's how most do it. Either into the sump
above oil or in through the dipstick hole.
Happy to be proven wrong tho.
The oil level will not be a restriction though,as the oil will always equalise the level as its liquid?
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