Author Topic: TDI into A1 (Read 12447 times)

DigitalK · « **on:** November 28, 2005, 05:36:29 pm »

I have kind of a long story... My first car when I was 16 (9 years ago) was a rabbit diesel. I stopped driving it and it sat in the backyard of my parents house when I left for college at 18. I didnt touch it again till this year. I towed it up here, bought a mkiv 1.9TDI motor and gave 2 mechanics a shot at putting it in. Unfortunately they floundered, cut off the motor mounts dented the car, and accidentally broke the windows. Long story short the stuff is at my grandpas house right now. What I have there is the motor, tranny, full harness, and ecu, and cluster. He is going to put it into his caddy. I was talking to lagomorph on the vortex and he reccomended I go with an aaz TDI instead, since its DBC instead of DBW. Im thinking of buying another diesel for myself, I have one in mind and am contemplating putting one of these in. What are the performance differences between the mkiv TDI and the aaz? is the aaz IDI or TDI? I'm kinda stuck with what I really want to do here. I am thinking of having my grandpa sell the TDI he has.... any input would be greatly appreciated....

here is a pic of his truck, and the rabbit diesel I am trying to work a deal on...

dubCanuck1 · « **Reply #1 on:** November 28, 2005, 05:53:40 pm »

You really want to PM MrDave. He's got an ALH TDI swapped into his Caddy, which looks pretty much identical to yours. He could probably talk you through such a swap over the phone.

935Racer (Another Dave....what's up with that) has a project to also put an ALH into a similar Caddy.

Between those two, I think they would steer you straight.

dC

DigitalK · « **Reply #2 on:** November 28, 2005, 06:07:53 pm »

Quote from: "dubCanuck1"

You really want to PM MrDave. He's got an ALH TDI swapped into his Caddy, which looks pretty much identical to yours. He could probably talk you through such a swap over the phone.

935Racer (Another Dave....what's up with that) has a project to also put an ALH into a similar Caddy.

Between those two, I think they would steer you straight.

dC

I saw mrdaves swap....and talked to him a little bit. I want to do an aaz in my car and the alh in the truck. if the aaz and alh performance numbers are similar I might as well sell the alh dont you think? Im not smart enough to do an alh swap on my own. My grandpa is though...thats why I gave him the motor to put in his truck.... just weighing options....

RabbitGTDguy · « **Reply #3 on:** November 28, 2005, 06:59:19 pm »

if your interested in an mechanical TDI motor setup, avoiding the electronics, etc. I can help you out...i'm working on a TDI swap into my MK1 GTD right now

have posted alot of pics up here yet...but its coming along...

Joe

DigitalK · « **Reply #4 on:** November 28, 2005, 08:00:17 pm »

Quote from: "RabbitGTDguy"

if your interested in an mechanical TDI motor setup, avoiding the electronics, etc. I can help you out...i'm working on a TDI swap into my MK1 GTD right now have posted alot of pics up here yet...but its coming along...

Joe

what do you mean by "mechanical" i'm not sure on all the differences between an aaz and an ahl....

vwmike · « **Reply #5 on:** November 28, 2005, 08:58:13 pm »

Basically what Jeff (Lagamorph) was trying to tell you is that the MK4 TDI engine does not directly bolt into the Rabbit and it's electronics are much more difficult to integrate. It has an immobilizer system that a few tuners (like Rocketchip) can get around, but Mr. Dave managed to make it work. I think it sounds like more trouble than it's worth though. The MK3 TDI engine will bolt in and doesn't have the drive-by-wire setup so it uses a conventional cable linkage for the throttle (which you already knew) and also does not have the immobilizer system so hooking it into the Rabbit is greatly simplified. By mechanical TDI he is referring to the injection pump being replaced with a mechanical pump similar to the existing one on the Rabbit. This eliminates all of the associated electronics which again greatly simplifies the swap in one respect. This comes at a price though if you intend to use a VNT turbo (some of the earlier TDI's didn't use a VNT).

DigitalK · « **Reply #6 on:** November 28, 2005, 10:47:45 pm »

how does the AZZ compare to the ALH performance wise?

vwmike · « **Reply #7 on:** November 28, 2005, 11:39:53 pm »

Quote from: "DigitalK"

how does the AZZ compare to the ALH performance wise?

I assume you mean the AAZ? That is a 1.9TD that was sold outside of the US. It makes 75hp if I recall correctly. It is very tuneable and easy to install as there is no electronics or anything to worry about. It is non-intercooled and uses a prechamber like the 1.6 in the Rabbit. The TDI doesn't use a prechamber and injects directly into the cylinder (hence the title - Turbo Direct Injection).

dubCanuck1 · « **Reply #8 on:** November 29, 2005, 12:00:17 am »

Whereas the ALH comes with 90 HP out of the box, but increasing the injector size, and recalibrating the ECU gets you up to 110 HP.

Here's Dave's.

http://forums.vwvortex.com/zerothread?id=778864

vwmike is correct. The mechanical swap is easier to get on the road, being the it is, as stated, cable clutched, and cable throttled.

TDIMeister · « **Reply #9 on:** November 29, 2005, 12:21:17 am »

Another TDI-into-Caddy:

http://forums.tdiclub.com/showthread.php?t=106903

DigitalK · « **Reply #10 on:** November 29, 2005, 05:16:36 pm »

thanks guys!!!

MacGyver · « **Reply #11 on:** November 30, 2005, 07:08:15 am »

Quote from: "vwmike"

The MK3 TDI engine will bolt in and doesn't have the drive-by-wire setup so it uses a conventional cable linkage for the throttle (which you already knew) and also does not have the immobilizer system so hooking it into the Rabbit is greatly simplified. ... This comes at a price though if you intend to use a VNT turbo (some of the earlier TDI's didn't use a VNT).

The MK3 TDI's were all drive by wire. No cable.
Clutch is hydraulic too.

The MK3 (1Z/AHU) TDI's came with wastegated turbos.

DigitalK · « **Reply #12 on:** November 30, 2005, 10:16:33 am »

im just thinking an aaz engine would be alot easier for me to learn with. I havent done a swap before. I'm pretty handy but I think the TDI would be just too much for me to handle alone. Maybe after my grandpa and I do a TDI into his truck I'll feel better about it.

tackered · « **Reply #13 on:** November 30, 2005, 10:17:16 am »

AAZ would be an easier swap, it's all mechanical.

RabbitGTDguy · « **Reply #14 on:** November 30, 2005, 05:22:37 pm »

well...either way, either swap...we're here to help in either form

Joe