K1100 16V Turbo build...now transmission build.
Turbo Mini Forums

Good bit of work!

Don't tell me you've welded two bits of angle together and done your drilling and filing effort on that bit too?

Not quite, it's machined out of billet. The bulk of it was milled out, then lightening it involved some milling of pockets (there are 2 10mm pockets on the underside) and I pocketed out around the mounting holes. But then rest of the tidying up was done by manual cutting and filing and a bit of chain drilling added into the mix.

Edited by matty on 9th Jun, 2014.

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1/4mile in 13.2sec @ 111 terminal on 15psi

I did think you cant have welded that and smoothed it out. Although with the plate on the head as an example it doesn't surprise me.

Man knows how to use a file!

It takes a while, but you get used to doing it, when you weld up lots of castings and have to make the repairs invisible. Sheet ally dashboards/bulkheads are fun to repair too. Lol

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1/4mile in 13.2sec @ 111 terminal on 15psi

A few more bits done.

My new oil return/breather.





And I have decided to extend my turbo outlet pipe, as the silicon hoses keep overheating with it being positioned so close to the exhaust.

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1/4mile in 13.2sec @ 111 terminal on 15psi

Looking neat

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

any chance of pointing that pipe downwards and running it round the sump matt .?ever so close to the headers .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Yeah it normally sits a little bit further away, I'm waiting for a new o ring before I finally fit the compressor housing in the correct position.

Has anyone plumbed a vacuum off the turbo intake to the breather system?

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1/4mile in 13.2sec @ 111 terminal on 15psi

Nice thought Matt - mind if I borrow it ?

I am going to haver to re-think the turbo on the van, so may try that on it.

No go ahead Dave. Does yours run close to the manifold too then?.

Good news...my gearbox shaft is winging its way to me. Fingers crossed everything is ok. I'll be taking my box to work tomorrow and hopefUlly putting it all back together, ready for take two on the bench test! :)

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1/4mile in 13.2sec @ 111 terminal on 15psi

Mine runs as close as yours and actually scorched the silicone hose so needs to be re -worked.

Was thinking of extending the ally part as you have, but that won,t solve the problem other than getting the hose away from the heat.

This is all the more worrying as I was planning a low blow engine without I/C just to tame it for the wife and to tidy up the engine bay.

This is an issue i have encountered gents, simply putting one (ideally two) sheets of metal between manifold and the hose is enough to stop it being an issue. i usually make a square with a wee tag, fold the tag over, and tuck it under a jubilee clip. im sure you will come up with nicer solutions.

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

I tried 2 layers of heat resistant aluminised cloth but wasn,t convinced that it would do.

how about ceramic coating the housing and or manifold?

im sort of thinking about it on some parts i have seams like it dose a good job at keeping heat in or out ie on valves and intake/ex manifolds

heat wraping the ex manni whould be an easy way to reduce radant heat

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

Gold reflective tape around the inlet tube would help, wouldn't believe what that stuff can reflect.

http://www.camauto.com/dei/heat-barrier

looking great matty as usual

Yes i moved to the darkside

Instagram @jdm_brett

I'll have a look into how hot the turbo outlet gets on running. From memory there is about 15-20mm gap between the outlet and the manifold, so it should be possible to get some form of heat shield on there. I'll probably weld a couple of threaded lugs on the outlet just I case I do go down that route in the future.

Cheers brett, its slowly getting there! I've googled oil breather plumbing and nearly all of them have some form of vacuum running off the turbo intake or on NA off the intake manifold. I was thinking of running one from the turbo inlet to an oil breather catch tank, then have all my breathers connected to the catch tank, so they are all positive pressure is being drawn out. My main concern like you say is drawing oil into the turbo inlet though?

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1/4mile in 13.2sec @ 111 terminal on 15psi

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

me too.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Would you get away with venting it under the car for track days? I've always had my venting in the engine bay, but I did get an oil mist around the breather filter, and I was fed up of having oil everywhere, especially when it came to scrutineering.

I haven't ever looked into how modern cars do it, but I guess by plumbing it into an inlet it kind of keeps it a "sealed system". I have looked into be evacusumps and I know a few on here bought them, but never heard any feedback on how good they are?

My engine has one breather on the cam cover, one breather where the turbo oil return would usually be, and one on transfer housing, but that is also an oil drain. I think it's the transfer breather causing the oiling in the breather system, as its also a drain, but I don't think I can do without it, as that's the main breather for the box. :ohwell)

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1/4mile in 13.2sec @ 111 terminal on 15psi

modern cars have baffles and gause in the rocker covers to seperate oil mist out. Provided the engines healthy it does the trick, or it should do.

modern cars have the breather system plumbed to the inlet side of the throttle body with an orifice plate and a one way valve, and to the inlet to the turbo by a much larger hose. i cant think of any exceptions to this. but provided your engines healthy and your breather system is up to snuff (baffles and gause in the right places) it really ought not be chucking any oil atall.

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

Don,t know what I did wrong but when I tried evacusump it didn,t seem to help at all.

I had breathers from timing cover, rocker cover and the distributor hole, all led to a catch tank with the evacusump led from that via the one way valve and a variable valve ( a plumbing ball valve actually) because I had read that the evacusump system could pull oil out of the engine if uncontrolled.

Even with the ball valve removed it didn,t help and all the catch tank ever got, and still gets, is a bit of condensation.

ill be ventinting to atmosfeare and hope its ok

but i have "total seal rings" will be leak down testing thease so caller total seal rings and seiing how well they do!

Righty I've found a really good site about oil breather systmes and I'm going to go for an oil separator/catch tank with a gauze and a vacuum feed running off the turbo inlet. I've nearly finished my catch tank, but I got distracted by the arrival of a new gearbox shaft!

An extension has been welded onto the turbo, to allow easier fitment of filter hose, and I now have an oil breather take off too.

Edited by matty on 18th Jun, 2014.

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1/4mile in 13.2sec @ 111 terminal on 15psi