Tuning turbo oil and water need help

[djindiano]

i have my turbo i just dont no where to get the oil feed from and the water feed from i know to hose that brings the oil out of the turbo gose into the oil sump im just stuck on how to get the oil to the turbo ? and how to do the water feeds ?

 

[craigb244]

oil feeds are best taken from the pump... look at the oil filter and there are two "bungs" take the feed from the one that is after filter. (think its the bottom one)

water feed is best taken as soon as it leaves thee engine after the thermostat I would say...

so maybe you can tap a barb into the thermostat housing.

the coolant feed out of the turbo needs to go into the coolant tank ABOVE the coolant level. so best fit another barb into the top side of the coolant tank

 

[woj]

oil feeds are best taken from the pump... look at the oil filter and there are two "bungs" take the feed from the one that is after filter. (think its the bottom one)

water feed is best taken as soon as it leaves thee engine after the thermostat I would say...

so maybe you can tap a barb into the thermostat housing.

the coolant feed out of the turbo needs to go into the coolant tank ABOVE the coolant level. so best fit another barb into the top side of the coolant tank

I do not dare to say wrong , but perhaps I can dare to say non-optimal. The source of what I did with my turbo cooling (just finished today after a horrible two day overhaul of my whole cooling system ) is a well educated hydraulics engineer. Given the design and possibilities of the car's cooling system the best way is to take the water out to the turbo as soon as it leaves the water pump, in my case this indeed is out of the thermostat housing, but before the actual thermostat. The water should go back to the system just before the water pump, in my case the barb is welded into the steel water pipe going into the pump. Hooking up the return anywhere else will give you poor or no circulation.

The diameter of the connection is another story, but we figured that since the turbo holes are no more than 8mm then this 8mm should do for the whole connection. The diameter should be big enough to give turbo enough cooling and small enough not to take away too much cooling/heating from the rest of the system, go figure

 

[craigb244]

your idea is right... you do need to take the feed from as close to the pump outlet at possible... the closest we can get is the thermostat housing

for optimum flow the output should be near the input of the pump... BUT... you dont need a good flow. infact to much flow might cause to you put to much heat into the system.

remember that watercooled turbos are only made to cool the housing AFTER the engine is turned off.

what happens is the coolant gets very hot once the engine it turned off. and this hot coolant will naturally raise which pulls cooler coolant into the turbo.

this only works if the exit is high up and clear (hence going into the coolant tank ABOVE the coolant level)


this is my theory anyway... looked into it when thinking of having a watercooled turbo

 

[woj]

your idea is right... you do need to take the feed from as close to the pump outlet at possible... the closest we can get is the thermostat housing

for optimum flow the output should be near the input of the pump... BUT... you dont need a good flow. infact to much flow might cause to you put to much heat into the system.

remember that watercooled turbos are only made to cool the housing AFTER the engine is turned off.

what happens is the coolant gets very hot once the engine it turned off. and this hot coolant will naturally raise which pulls cooler coolant into the turbo.

this only works if the exit is high up and clear (hence going into the coolant tank ABOVE the coolant level)


this is my theory anyway... looked into it when thinking of having a watercooled turbo

Well, that's why we made the diameter small enough to have limited flow. I will share your thoughts with my engineer, will see what he says. In any case there is no way I am going to redo it yet one more time Also, from what I understand my way is more or less the same way that t-jets have it solved, but I never verified it.

 

[craigb244]

Yeah best see what works for you.
My idea uses thermo siphoning... They use the same type of thing for cooling huge computers/servers as it requires no pumps

 

[djindiano]

thanks for the help guys it means alot

dose anyone know if there is a form that gose trught it (like in steps) ?

 

[rallycinq]

Each application is slightly different, so no straight forward guide, although you might want to look at the Turboing Burple thread.

Cheers

D

 

[jimbro1000]

The thermo-siphon is how every single Fiat turbo I've studied cools the turbo after engine shutdown.

In short the turbo starts acting like a kettle, pushing heated water up to the top of the engine and drawing cold water as a displacement from the bottom. On the older Uno Turbos the "hot" return from the turbo is straight into the coolant reservoir.

 

[woj]

Well, we are just talking with my engineer and he says that all is fine, but then, it physically needs to be constructed such that such circulation is possible. Apparently this is the case in Uno Turbo, but then in Cinqs it would need to take the water from "underneath" the turbo (to my understanding) which in my case would be only possible from the bottom radiator hose. Then he says, that during engine operating such circulation is practically zero compared to one enforced by the water pump. So after all it seems that Craig is right saying that the cooling is mostly needed for after engine switch off.

Jimbro, is it also solved like this in t-jets?

On the other hand I would like to know how the water cooling was originally solved in Astra 1.7D from which my turbo comes?...

 

[rallycinq]

On the other hand I would like to know how the water cooling was originally solved in Astra 1.7D from which my turbo comes?...

Strange thought, the Astra 1.7 turbo we used was not watercooled.

Cheers

D

 

[woj]

Strange thought, the Astra 1.7 turbo we used was not watercooled.

Cheers

D

Mine was, IHI RHB4 from Astra F I believe. Yours was Garret IIRC.

 

[craigb244]

yep... you need to remember that the only reason it is been cooled is to stop the oil burning/cokeing once the supply stops... when running the oil is not sitting in the turbo for long enough to burn.

the only thing i thing you need to worry about on your setup is the water boiling after the engine it turned off

 

[craigb244]

On the other hand I would like to know how the water cooling was originally solved in Astra 1.7D from which my turbo comes?...

Strange thought, the Astra 1.7 turbo we used was not watercooled.

Cheers

D

Diesels typically dont need watercooled turbos because the EGT is much much lower then petrol engines.

the reason I bet they now fit watercooled is because newer diesels are much more refined and run a lot hotter... and also the GT series turbo water cooled cores are a lot more common/cheaper.


Really... no turbos (other then bearing turbos) need to be watercooled. it is only done because most car owners will turn engines off the instant they pull up even if ragging it.

On my old turbo i had done thousands of miles and never really looked after it "that" well but it was spotless inside but I had noticed that after turning the engine off the oil still poured thru the turbo for a good 60seconds... put it down the having a bit of and excessively long oil feed pipe with a big loop in it

 

[woj]

the only thing i thing you need to worry about on your setup is the water boiling after the engine it turned off

I am hoping that the cold to hot principle will still work, will see...

 

[djindiano]

well hold on my turbo that i am going to use is a ct9 and it has two water pipe things one on the top and one under the top one. im lost lol i dont know what tube from the rad goes to the pipes on the turbo lol

 

[craigb244]

cool water goes to the bottom hot out the top.

 

[djindiano]

i have something else to ask im stuck when it comes to the intake i got my self a cinq sporting and the intake where the intercooler pipe goes its like a curcle i looked on eday 4 parts but i dont no wat part to get can any1 help ???

 

[craigb244]

I think the part you are asking for it the "bob" from an 899ohv engine cinq.

part number looks to be 7702470
and the seal is 7670535

 

[craigb244]

or see if you can get one from a fiat palio with a 1242 engine its larger

the part number is (i think) 46467404