VW Vortex - Volkswagen Forum banner

VR6 Swap into a Audi A4 B5 Information

258713 Views 182 Replies 54 Participants Last post by  V-dubbulyuh
27
Just making a running thread that I will update the front page with new information on the swap as it comes by me or if anybody posts it up. If you have any new information on parts, part numbers, where to get parts, or anything about a build let me know and i'll get it on here. Pics to come soon.

Things like engine management, turbos, etc will not be listed as that is all a basic turbo/engine build and has nothing to do with the swap itself. Also as of now there is no way to use the stock management to power the VR6 from an Audi. I will only mention if certain turbo manifolds do not fit as that information becomes available.

Apparently a starter from a VR5 will work. I don't know what model car it is, I think it's from the B5 VW Passat in Europe. Same with the flywheel. Two options I did not know about before. Might be able to cut down the price of the swap by a few hundred bucks if you can get those parts from across the pond but that's person specific. I'll get more info on that as I find more.

I'm just putting these here for temp sakes until I can get all the info but there is a guy in Europe who has made a spacer/flywheel adapter to use an Audi 5cyl 7A flywheel in conjunction with a stock VW/Audi/Bosch starter. The starter is from the European VR5 Passat. I have contacted the guy and he said in one of his posts that he'd give out the plans for the spacer/adapter. After I get those plans from him I might have a few made up for us over here in the US in case anybody has access to European parts or people want to shop on ebay.de for the parts. I'm sure the VR5 starters are all over ebay along with the flywheels. In fact you'd probably want to get a L/W flywheel made here in the US that way the only european part is the starter. Starter part numbers are... VW: 012911023 BOSCH: 0001107070. This will be added to the list once I get the rest of the information on the spacer/adapter. The OEM starter also makes it so you don't have to cut/shave anything off for clearance.

Images for the items listed in the last paragraph.







Parts List
Adapter plate - Touareg/ European Phaeton VR6 Adapter Plate, European VR5 Passat Adapter Plate, - 022103551А, 071 103 551A


Flywheel


Clutch - 034's Single Disc Flywheel works with the Audi I5 20v clutches, engines 7A/3B/AAN/ADU.


Starter - 034
Timing Chain Cover - MK4 Lower Timing Chain Cover
Valve Cover

  • MK4 Plastic
  • MK3 Aluminum with one end chopped and welded shut

Oil Pan

  • VR6 Phaeton from Europe - VAG-CAT : The Phaeton pan bolts up and clears everything.
  • Modified Touareg w/Modified Sub-Frame - Touareg pan needs to have the bottom cut and welded shut to be not as low and needs the sub-frame to be trimmed on the top. The Touareg pans can be had for 200-300 bucks used from Junkyards/LKQ/Car-Part.com.

Intake Manifold - Any short runner should work but I'd recommend the following two

  • 034
  • SPA makes a cast one that has a nice output direction and is the same price. Find it on ebay.


Application Specific Parts
12v Engine
034 Motor Mounts or Custom Mounts - 034 Mounts are direct to the chassis and do not have any vibration dampening so if you want a smoother ride then you will need to make a set. Also the 034 mounts do not allow for an A/C compressor.

Oil Dip Stick - If using the stock Mk3 dip stick you'll probably encounter problems with the mounting tab with a short runner. I used another left over VW bracket I had and brazed it onto the stock Mk3 dip stick after grinding off the original and it bolts to the oil filter housing.

Starter Mounting - Two places need to be clearanced for the 034 starter to fit. First is the block casting by the lower bolt hole. There needs to be some block ground away so that the starter can swing enough to engage all of the teeth. 2nd, the block casting needs to be clearanced near the oil pan just a little to allow the main power nut for the 034 starter to come off. The VR5 starter shouldn't need this as the connection points are on the solenoid, but I'm not sure on the lower mounting hole.

Depending on your motor mounts you'll have to shave/cut/hack up your front radiator support a fair amount to clear the engine/pullies. Custom fit fans will need to be had.

24v Engine
Motor Mounts - Stock Mount from Touareg/Q7, not 100% sure

You might be asking why a few of these parts are listed. The Mk4 items are for ease of installation. The Mk4 valve cover clears the hood unlike Mk3 ones and requires no modification. The Mk4 timing chain cover has a notch where it bulges out and it doesn't have the extra framing support. The reason why these are removed is because the 01A/01E transmissions won't mount flush if the notch isn't there. You can be cheap and shave part of your transmission off to cut the cost but timing chain covers are cheap. The reason for the new oil pan is to clear the sub frame and to bolt to the transmission. The transmission has two or four bolts that go through the bottom, the Touareg/Phaeton oil pan allow for these to be used.

Somebody got the stock hood latch to work with the swap. I'll see if I can look up that information on that too. I think most people just go with hood pins though for ease of the swap.

After you are done everybody needs to get this from 034.

Adapter Plate


034 Starter + Bolted Up




Differences in the two timing chain covers. Notice notch that goes in where the timing chain cover bulges out.




Modified MK3 Timing Chain Cover to fit


Modified Transmission Bell Housing to fit Mk3 Timing Chain Cover


The two valve covers, Mk4 first then Mk3




Phaeton Oil Pan - Really hard to source here in the states. Being sold for 400+ by two places currently. if anybody has any connections over seas let us know.


Clearance at the bottom of the pan from the stock sub frame


Modified Touareg pan to work for the application. These can be had for 200-300 bucks used.


Sub frame had to be modified to fit the Touareg pan if I am correct. Not 100% sure that it HAD to be modified or not. Either way it's a pretty simple and straight forward change.


SPA's Intake Manifold. Click the 034 link above to view theirs.


034's Engine Cradle/Mount Pics








The following are custom mounts made by others who have done this swap. Some harder and more complicated than others.








24v OEM Mounts used in this application on a 24v motor


See less See more
1 - 20 of 183 Posts
Slowly going through my swap. Engine and tranny are pulled from my Audi. VR6 engine is on the stand waiting to be rebuilt. I'll get pics up of the bolting together of the tranny and the engine with the adapter plate. I've heard that some people have drilled extra holes because there aren't many used but my initial bolt up yesterday with the adapter plate to the tranny used seven bolts. Didn't try to get it bolted up to the engine though.
Two things....
1. My build is on delay. For New Years I decided to have a bon fire and start it with gas. Not a smart move on my part. Went to light it and it blew up on me giving me 2nd degree burns on my arms and face. So build is postponed for a few weeks while my skin re-grows.

2. Gave in and I ordered a brand new oil pan from Automation place that I linked in the first post. I was thinking about modifying a Touareg pan but I'm pretty sure the sub frame still needs to be modified with that and there's already enough stuff to deal with. That should be here in a few days.
Love the write up. Keep it coming. Have you thought about using an ECU from a 2.7T and then using Maestro7 for tuning?

I've been using Maestro on a 1.8t for the last few weeks and it doe offer lots of adjustments once one figures out what each item does.

My plan at some point will be to install a SAAB 2.3T into the 2001A4Q though this looks really interesting.
Two things....
1. My build is on delay. For New Years I decided to have a bon fire and start it with gas. Not a smart move on my part. Went to light it and it blew up on me giving me 2nd degree burns on my arms and face. So build is postponed for a few weeks while my skin re-grows.
First, I hope you heal quickly. Second: :laugh: I'm laughing because I know two people that have done the same thing, both got burned pretty good (nothing serious, which is sounds like yours isn't either or you wouldn't be posting). I feel like I should treat you the same as my friends so I'll tell you what I told them: Dumbass! :p

Good luck on the build, this looks pretty cool!
Yeah. That's pretty much what everybody says. I hope you heal fine, retard. :) Which yeah, it was a super dumb thing to do but I blame it on the alcohol. :p Hopefully I heal soon and I can get working on it again. At the point right now where I just need to go to the local hardware store and get a ton of bolts and nuts to put the whole monstrosity together but I gotta wait for the oilpan to come in first.
Does it matter if the b5 was a 1.8t or 2.8 prior to the swap. I've looked around and cant find the answer.
Nope. The subframes should be the same between the two and the transmission should be the same, a 01A. I've heard the 01A is good for 500-600 or so till things break. The 01E in the S4's is good for 800+. I'm going with the 01A to see how it lasts in the 600whp range. If it breaks, I'll get a S4 trans setup.
Any estimation at a final cost to have it running?


This is a really good write up, keep it goin! :thumbup:
Probably going to be around 10k at minimum when all said and done. I still need to purchase standalone, fueling, ignition, turbo, piping, coolant lines. :(
Nope. The subframes should be the same between the two and the transmission should be the same, a 01A. I've heard the 01A is good for 500-600 or so till things break. The 01E in the S4's is good for 800+. I'm going with the 01A to see how it lasts in the 600whp range. If it breaks, I'll get a S4 trans setup.
You will need a 01E if you plan on making more then 500whp. I know people that have broken the 01A's even when making 400whp. I was lucky enough to get mine to hold together while making 500-570whp, but the minute I started making 600whp 3rd gear just kept letting go just as I shifted into that gear. I broke 2 within a few weeks of each other on the first test run of each one.

If you plan on running a 01A you might want to use a flow control valve to slip the clutch.
Oh I plan on it breaking. :) I just want to get the car up and running on low boost before I go and dump 1500 bucks into the 01E swap.
Re-did some of the info up top to be more organized but nothing new on my car. :( Still waiting for that oil pan to come in so that I can get it all bolted up and fitted into the car. Should have came in last week. :mad::mad::mad:
Got carried away last weekend. Thought I should make a stand for the vr6 and bolt the tranny to it so I got some of my 1/4" angle scrap and made a engine test stand. Still needs the components for it but it's welded together. Just need to finish up my sand blaster setup and I'll strip it and repaint it. I don't really need the test stand but I've been wanting to make one for a while. Should make bolting it all together and test fitting things a lot easier. :p

See less See more
Found some more info. Posting the link here just for reference when I get home from work so I can go through it and add the info to the top. Here's a guy that didn't buy the 034 flywheel. He said he'd offer the adapter/spacer for the audi flywheel so I might send him some money for it so that I can get my hands on it and maybe have a few made up for people that want to go that route. :)

He also found the OEM starter that will work. They are all European parts so if you have a connection to that stuff then this could make your swap even easier. Also the OEM starter doesn't require you to modify the block/tranny at all.

http://www.motorgeek.com/viewtopic.php?f=6&t=35242&start=25
Great write up - thanks alot man :beer:
x2:beer::beer:
I have now added some more info about the alternate flywheel/starter combo that can be had. I will officially put them into the list once I get the rest of the information on the spacer/adapter for said setup.

Note to myself... copy images to my own server so that they stay up for as long as I want them and not other people. :)
1 - 20 of 183 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top