Diving in.

[icyhotpatch]

I will hopefully be buying a mk1 rabbit or jetta soon. I want to turbo but not sure where to start. I searched turbo on the forums and didnt really find anything. The info I do know is that egt is an area of concern. I would max run 10 psi. Basically I would run turbo for b3st fuel economy and speed. I was thinking about getting a different trans but I know what that entails already. Could go easy way and find a td but I want to do it myself. Gooing to try and find stainless steel exhaust. Might help keep temos down and less prone to rust in good old michigan.

So what can I do to get the egt to stay low? Port and polish? I heard turbo size matters. Smaller turbo makes harder for gasses to leave engine resulting in higher egt. Was told intercooler will help egt as well.

I believe I need to up the fuel. Might have someone rebuild my IP.

[Gizmoman]

IMHO, your on the right track - I'd say the IC is your first move and doesn't require removing the head like P&P.

[theman53]

The for sale section has stuff come up all the time. You can get original vw stuff especially in our for sale section or put stuff together and make your own. If you are running 10 psi and not gobs of fuel you will not have to do much if anything to help egt temps as that is stock for these engines. For 10psi a small turbo will be fine, it is when you go big that you need more fuel to keep spooling and that is where the heat is. For a fuel mileage build I would say the K14 would be your best option, but the other turbos would work too.

[Jetmugg]

Don't get too far ahead of yourself until you have actually purchased the vehicle.   It's usually cheaper to buy someone else's work "already done" than to piece it together yourself.

Cheaper.  Not necessarily better.

Be honest with yourself about your goals, and please post pics of your new ride!

[icyhotpatch]

Oh you will see pics. I like that "Cheaper. Not necessarily better.". I live in the clouds alot. Getting ahead of myself is an issue. I just like to have all my thoughts collected. My slave driver aka wife is behind me on this which is nice once in awhile but she wont let me get a rust bucket. Something about turning the place into a crappy used car lot. I was thinking about buying a gas 4door or gti and then an 1.6l engine and doing a swap. Mainly because I have heard the transmissions perform better than the ones that come on 1.6l(I say heard because ive only seen gear ratios heard claims and sometimes the math doesnt work out In the real world). Then I can clean up the diesel motor while still having reletively decent FE.

The main reason I started this was because I know what and how a turbo works but dont want to buy a turbo put it on and blow my engine up. So this gives me a starting point.

[icyhotpatch]

A k14 is where I will start looking. My buddy knows a little about turbos. He has had 4 supras and now drives an sc300 2jtgte swap. But thats the turbo he recommended. As a starting point. Nice when strangers agree on stuff. The thing I have to keep reminding myself is not to spend 4000 on mods to make it have better fuel efficiency because id just be spending money to save money which doesn't always make sense. Kinda like buying a chevy volt. Which I would be more interested in if it had a diesel generator. But thats where the xl1 comes in.

[bbob203]

Get a k14 from an aaz if you go that route.

[burn_your_money]

At only 10 psi I would run a K03 from an AAZ or a K03 or GT15 from a TDI. A k14 is still a nice turbo but probably a bit too big, especially if you don't want to bother with a tuned TD pump.

[icyhotpatch]

aaz is the mk3 diesel right. Would most of the parts fit a 1.6l from a mk1? Ive seen some around 40 turbos new/rebuilt

[icyhotpatch]

I dont mind a upgrading to a td pump I just figured to start with something stock and work up. Im trying to sell the second car for 3700ish and buy a rabbit for 3000ish or less then having some money for modifications. If I buy a gas then do a swap I will spend like 2000. The 1.6l na are hard to find in good shape I saw a guy trying to sell a nice caddy for 4500

[icyhotpatch]

What im trying to to do is get a rabbit and have 1500 to 2000 left over for any issues that should arise.
Sorry for the multi posting you guys have got me all excited and the brain working.

[8v-of-fury]

What kind of engine are you trying to build?

Fuel sipper? Or maybe a power house? Bit of both? Do you want Torque down low from idle on up? Or do you prefer to have the Torque curve up high, So you can blast down the highway at 80+mph and still wind it up to pull out and pass with power?

Answer each one of these, and it will tell us what we need to tell you in order to get to that ultimate goal. Even if you want to do it in pieces, we can help with that too. Tell you where to start, and what you will need to get down the line in order to make it happen.

We've all been down this road, and many have extreme experience in this very thing.. lol

[icyhotpatch]

I would like a fuel sipper I would like to be able to pass easily. But I dont need to go over 80. I barely ever drive on the interstate. But its Michigan so I dont want to be in the way taking 4 minutes to pass someone.  So low end torque would be nice. I know turbos are basically not working right off the line.

Basically I just wanna cruze and not waste 5 gallons of fuel doing so.

[icyhotpatch]

Doing a 2jzgte swap into a sc300 this winter maybe if my buddy gets his parts

[8v-of-fury]

I recommend the smaller ko3. People are giving them away off of their tdi engines, and they cam on later AAZ too.

I run one on my 1.9 mtdi and i spin it good. Boost from 1500 up, and with less displacement youd be less in its danger zone.