Need Help selecting a turbo for an 85 1,6 td

[Familydiesel]

I need help in kowing what to look for in buying a turbo for an 85 Jetta turbo diesel engine.  I bought a used 1.6 turbo engine (mechanical head) without the turbo and exhasust manifold.  I need to find a replacment that will bolt up to the stock flanges (I also have the exhaust down pipe).  What was the stock turbo, what are its specifications, and what do I need to look for in finding either a stock turbo or a replacement.  I am going to install this in my 80 vw pickup.  I have a diesel 5 speed already and want good milleage and better performance.  I would appreciate some counsel and some of your experiences.  
I have heard guys thow around turbo numbers but don'e know what they mean.  
Is it true that the smaller the turbo, the faster it spools and perhaps give better low/mid range?  What brand and model of turbos do I need to look for?  
In any case I plan to bolt whatever turbo I get to the stock manifolds and down pipe unless someone else has done a similar conversion and found other parts to be better.  
I would appreciate any counsel you all have.  

Also, I want to buy a good used turbo, wast gate, exhaust manifold, and both oil lines.  If you have one, I would be intersted.

Thanks :wink:
Greg

[dillenger1]

If the down pipe you have has a rectagular(almost square)manifold,its a t3 or k24.Buy a exhaust manifold from a 1.6. for  feed line theres nice kits on ebay for the t3 ,but youll need to tap the feed fitting on the turbo or  find a transfer fitting,the vw t3 uses strange thread.Intake manifold from the t3 will be fine.I made my own return line by tapping into the oil pan

[Familydiesel]

Hey Thanks for some insight.  I'm still not sure if it is a t3 or k24.  I have the square ports.  Will both fit?  I have the actual and complete 1.6 turbo diesel engine without the exhaust manifold and turbo. I have both input and out put line fittings already in the block and oil filter (minus the actual lines; since the seller took these also.  I would like to find out what turbo actually came on the engine and the specifications so I could match to a similar turbo if possible, or hunt down an original.  
Thanks for the tip.  It narrows downt the search. I am wondering if it is the k24.  These seem to be plentiful.  Do you have any stats on the k24?  
Thanks,
Greg  

[dillenger1]

If it from a 1.6 and its a kkk its probably a k24

[Familydiesel]

I looked at a couple of pictures that I took of the original turbo with my phone camera, and you are right, it is a KKK. If it is a K24 do they come with a standard retangle shaped port for bolting to the exhaust manifold and a rectangle flange which connets to the down pipe?  I have the cast down pipe and it has a retangled fitting.  Does the K24 come with a variety of inlet and outlet diameters for the intake?  
Hey we're getting there.  This narrows the field even more.  If it is not a K24, what else could it be?  
Thanks again.  This is really helping me.
By the way, your engine looks very sanitary.  Have you got it together yet?
Greg