Author Topic: na to td conversion turbo coolant line questions  (Read 23893 times)

March 20, 2011, 02:20:50 pm

bgbmxer

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na to td conversion turbo coolant line questions
« on: March 20, 2011, 02:20:50 pm »
so im in the process of taking my 84 mk1 and convering it to from a na to turbo and haven been able to find any information on where i need to pull coolant from to feed the turbo. i was planning on using the heater core lines but if there is any better way any advice would be appreciated. also for the oil feed comes from the pipe plug on the mount for the oil filter correct? thanks brandon

Reply #1March 20, 2011, 02:27:13 pm

Vincent Waldon

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Re: na to td conversion turbo coolant line questions
« Reply #1 on: March 20, 2011, 02:27:13 pm »
If you're talking about the standard OEM turbos used on TD engines (T2/T3/K03/K14/K24) there is no coolant feed... they are cooled by oil only.

And yup, the oil feed for the turbo comes from a M12 fitting at the top of the turbo oil filter flange... the non-turbo flange probably just has an M10 fitting for an oil pressure gauge and the like. 

Someone else who has done the conversion can confirm.   ;)
Vince

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2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta

Reply #2March 20, 2011, 02:31:01 pm

R.O.R-2.0

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Re: na to td conversion turbo coolant line questions
« Reply #2 on: March 20, 2011, 02:31:01 pm »
first off, this thread is in the wrong section :)

second off, the turbo oil filter flange, is indeed special.. the n/a unit will not work.

the only turbos available on VW diesels that are water cooled, are not available in the USA..

what turbo do you have that needs water cooling? not one off a US or Can spec TD, thats for sure.

anyways, you might get more help if you posted up in the IDI section, being that you are working on an IDI diesel :)

hope we can help..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #3March 20, 2011, 02:41:45 pm

bgbmxer

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Re: na to td conversion turbo coolant line questions
« Reply #3 on: March 20, 2011, 02:41:45 pm »
first off, this thread is in the wrong section :)

second off, the turbo oil filter flange, is indeed special.. the n/a unit will not work.

the only turbos available on VW diesels that are water cooled, are not available in the USA..

what turbo do you have that needs water cooling? not one off a US or Can spec TD, thats for sure.

anyways, you might get more help if you posted up in the IDI section, being that you are working on an IDI diesel :)

your right this is in the wrong section and if i knew how to move it i would. or if a mod can do it that would be great.

the turbo i am using is off of a 2.2 2.5 chrysler since i have plenty of them it is a mitsubishi turbo and it is oil and water fed.

second the the oil filter flange does have a pipe plug in it not sure of the size can someone tell me the difference? and if i cannot use the stock flange anyone have one for sale
« Last Edit: March 20, 2011, 02:43:38 pm by bgbmxer »

Reply #4March 20, 2011, 02:46:34 pm

R.O.R-2.0

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Re: na to td conversion turbo coolant line questions
« Reply #4 on: March 20, 2011, 02:46:34 pm »

first off, this thread is in the wrong section :)

second off, the turbo oil filter flange, is indeed special.. the n/a unit will not work.

the only turbos available on VW diesels that are water cooled, are not available in the USA..

what turbo do you have that needs water cooling? not one off a US or Can spec TD, thats for sure.

anyways, you might get more help if you posted up in the IDI section, being that you are working on an IDI diesel :)

your right this is in the wrong section and if i knew how to move it i would. or if a mod can do it that would be great.

the turbo i am using is off of a 2.2 2.5 chrysler since i have plenty of them it is a mitsubishi turbo and it is oil and water fed.

second the the oil filter flange does have a pipe plug in it not sure of the size can someone tell me the difference? and if i cannot use the stock flange anyone have one for sale


as for the difference, vincent already commented on that, but i guess we will touch again on it.. one has a pipe plug, and M10 threads, and the turbo one has a connection where that pipe plug would be, and M12 threads.. so, whats the difference between 10mm and 12mm? i would say about 2 mm.. lol..

and for your turbo, i would avoid using that., its gonna be laggy as all hell..

gasser turbos do NOT work well on diesel engines..

ive got a grip of TD04H turbos too, and i just wont run one on my diesel.. they are only good for like 12 psi, and its gonna be laggy..

if you do use that turbo tho, just dont hook up the coolant lines..
« Last Edit: March 20, 2011, 02:52:54 pm by R.O.R-2.0 »
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #5March 20, 2011, 02:53:18 pm

R.O.R-2.0

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Re: na to td conversion turbo coolant line questions
« Reply #5 on: March 20, 2011, 02:53:18 pm »
also, Vincent might be nice, and move this topic for you :)
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #6March 20, 2011, 03:11:53 pm

bgbmxer

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Re: na to td conversion turbo coolant line questions
« Reply #6 on: March 20, 2011, 03:11:53 pm »

first off, this thread is in the wrong section :)

second off, the turbo oil filter flange, is indeed special.. the n/a unit will not work.

the only turbos available on VW diesels that are water cooled, are not available in the USA..

what turbo do you have that needs water cooling? not one off a US or Can spec TD, thats for sure.

anyways, you might get more help if you posted up in the IDI section, being that you are working on an IDI diesel :)

your right this is in the wrong section and if i knew how to move it i would. or if a mod can do it that would be great.

the turbo i am using is off of a 2.2 2.5 chrysler since i have plenty of them it is a mitsubishi turbo and it is oil and water fed.

second the the oil filter flange does have a pipe plug in it not sure of the size can someone tell me the difference? and if i cannot use the stock flange anyone have one for sale


as for the difference, vincent already commented on that, but i guess we will touch again on it.. one has a pipe plug, and M10 threads, and the turbo one has a connection where that pipe plug would be, and M12 threads.. so, whats the difference between 10mm and 12mm? i would say about 2 mm.. lol..

and for your turbo, i would avoid using that., its gonna be laggy as all hell..

gasser turbos do NOT work well on diesel engines..

ive got a grip of TD04H turbos too, and i just wont run one on my diesel.. they are only good for like 12 psi, and its gonna be laggy..

if you do use that turbo tho, just dont hook up the coolant lines..


as for the oil feed line is the only difference the size of the hole and the threads itself making it not usable of is there a restricter? if its just the size of the hole i see no reason it couldnt be drilled and tapped to make work if someone could explain why that would be great.

as for the coolant lines yes that is a possibility but it does help keep things cool.

yes the turbo is probably gonna be laggy just for the simple fact it is not small for the displacement of the engine but its smaller than the garretts that i have laying around also. but as for only being good for 12 psi i disagree. i have seen them pushed way past that many times and the stock boost settings for the car it comes off of go to 14psi. weather they are effeciant above 12psi probably not. im hoping for less lag with a better intake and exhaust manifold and full exhaust but we will see. i am open to being told what will work and what wont though  ;D

Reply #7March 20, 2011, 03:19:51 pm

R.O.R-2.0

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Re: na to td conversion turbo coolant line questions
« Reply #7 on: March 20, 2011, 03:19:51 pm »
why beat your head on the wall, when others have already done it, and told you that it hurts?

why not get an appropriate diesel turbo that will spool up before 4000 rpms?

thats what im getting at, sure, its a turbo, its gonna make boost, but if its making boost above the engines efficiency range, then what god is it really?

a 1.6TD is about out of power @ 4000 rpms, and that turbo is just gonna be coming to life..

sure, your gonna be turbo charged, but its gonna be smokey, and slow on the bottom end.. your going to have a very limited powerband.

just because the turbo is small, does not make it suitable..

diesel turbos have bigger hot sides than cold sides (.48 cold/.42 hot) and gassers are opposite (.42 cold/.48 hot) and i was just using those numbers for examples..

i have given you some food for thought, now you just have to decide if you are going to join the club at the bloody wall..

sell off some of those junker TD04H turbos, and buy a real diesel turbo, or a VNT if you really want a sweet turbo..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #8March 20, 2011, 03:30:29 pm

bgbmxer

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Re: na to td conversion turbo coolant line questions
« Reply #8 on: March 20, 2011, 03:30:29 pm »
why beat your head on the wall, when others have already done it, and told you that it hurts?

why not get an appropriate diesel turbo that will spool up before 4000 rpms?

thats what im getting at, sure, its a turbo, its gonna make boost, but if its making boost above the engines efficiency range, then what god is it really?

a 1.6TD is about out of power @ 4000 rpms, and that turbo is just gonna be coming to life..

sure, your gonna be turbo charged, but its gonna be smokey, and slow on the bottom end.. your going to have a very limited powerband.

just because the turbo is small, does not make it suitable..

diesel turbos have bigger hot sides than cold sides (.48 cold/.42 hot) and gassers are opposite (.42 cold/.48 hot) and i was just using those numbers for examples..

i have given you some food for thought, now you just have to decide if you are going to join the club at the bloody wall..

sell off some of those junker TD04H turbos, and buy a real diesel turbo, or a VNT if you really want a sweet turbo..
makes sense and yes very good info thank you and yes it will be like a honda with a big turbo lol. but my main questions were about the coolant and oil feed and mainly the difference in the oil feed flanges and where is a suitable place to pickup coolant for the turbo from.

im new and how am i going to find out what works without asking?

Reply #9March 20, 2011, 04:50:07 pm

81 vw pu

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Re: na to td conversion turbo coolant line questions
« Reply #9 on: March 20, 2011, 04:50:07 pm »
When I put a turbo on my 1.6 na I just drilled and tapped the stock oil filter adapter to 1/8 pipe.
I took the turbo I was using to a local hydraulic hose shop to get the metric to -4 an adapter for turbo,
 1/8 pipe x -4an fitting for oil filter adapter, and 36" of -4an line, all for $32.

Reply #10March 20, 2011, 05:08:28 pm

bgbmxer

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Re: na to td conversion turbo coolant line questions
« Reply #10 on: March 20, 2011, 05:08:28 pm »
When I put a turbo on my 1.6 na I just drilled and tapped the stock oil filter adapter to 1/8 pipe.
I took the turbo I was using to a local hydraulic hose shop to get the metric to -4 an adapter for turbo,
 1/8 pipe x -4an fitting for oil filter adapter, and 36" of -4an line, all for $32.

thank you for answering my question this was my thoughts exactly just needed clarification.

Reply #11March 20, 2011, 05:15:55 pm

Bugsy_malone 666

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Re: na to td conversion turbo coolant line questions
« Reply #11 on: March 20, 2011, 05:15:55 pm »
With the water hook up, if you have a turbo to take off of something would it not be a good idea to see where its connected on that engine it came off?

you may find it does already hook up to the heater loop on the other engine.

Oil feed as mentioned you can just use a take off from the oil filter head which is M10x1 thread, the same as brake pipes(think thats what they should be on your proposed vehicle, it was only mk3 golfs where the Master cylinder had bigger pipes) you'll find alot of aircooled people just use a T piece off the oil pressure sender/switch hole to feed a turbo, the advantage they have is diesel turbos tend to suit aircooled engines a little better as they are lower reving I mean lets fact it, if its not going to cost you anything/much to install, its worth a try to see how it works.

If you design a manifold with something like a T25/28/3/4 standardized outlet you can always try a turbo and if it doesnt work look for something more suitable which might just bolt right on :)

Reply #12March 20, 2011, 05:21:49 pm

RabbitJockey

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Re: na to td conversion turbo coolant line questions
« Reply #12 on: March 20, 2011, 05:21:49 pm »
people from pa are gay. go to heck
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Reply #13March 20, 2011, 05:35:31 pm

bgbmxer

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Re: na to td conversion turbo coolant line questions
« Reply #13 on: March 20, 2011, 05:35:31 pm »
With the water hook up, if you have a turbo to take off of something would it not be a good idea to see where its connected on that engine it came off?

you may find it does already hook up to the heater loop on the other engine.

Oil feed as mentioned you can just use a take off from the oil filter head which is M10x1 thread, the same as brake pipes(think thats what they should be on your proposed vehicle, it was only mk3 golfs where the Master cylinder had bigger pipes) you'll find alot of aircooled people just use a T piece off the oil pressure sender/switch hole to feed a turbo, the advantage they have is diesel turbos tend to suit aircooled engines a little better as they are lower reving I mean lets fact it, if its not going to cost you anything/much to install, its worth a try to see how it works.

If you design a manifold with something like a T25/28/3/4 standardized outlet you can always try a turbo and if it doesnt work look for something more suitable which might just bolt right on :)

the turbo dodges have the thermostat housing on the head and the coolant flows directly from there to the turbo then back to the the block. im unsure of the coolant flow in these engines so im unsure what will and wont work but i will be hooking it up to coolant.

the manifold is one of those universal 8 valve turbo headers ported out with a standard t3 flange and the intake is off of a gas engine my friend gave me. the exhaust is 2 1/4 the whole way out from the turbo the only restrictions i see are the turbo and the head. time will tell if it spools way late or not
« Last Edit: March 20, 2011, 05:41:07 pm by bgbmxer »

Reply #14March 20, 2011, 05:52:02 pm

bgbmxer

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Re: na to td conversion turbo coolant line questions
« Reply #14 on: March 20, 2011, 05:52:02 pm »