Expedition Allroad Update: Found the Beast a New Heart

"Garrett Davis" (GarrettDavis)
09/21/2016 at 19:44 • Filed to: Expedition Allroad, audi allroad, audi a6, audi quattro, quattro

The Expedition Allroad Project is one step closer to breathing once again! Making the arrangements now for the S4 engine, just got a few shots from the guy I’m picking it up from.

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It looks like a big, jumbled headache right now, but the engine is pretty low mileage and is coming with full set of seals and gaskets that I would be replacing anyway, so that’s a nice bonus.

There are some differences between this S4 engine and the Allroad 2.7, the biggest of which is that the S4 did not come with secondary air injection and the Allroad did. Adapting it would mean either machining the heads or finding new heads from another Allroad — neither of which seem like fun options. Luckily, various tuning shops have successfully been able to set the expected airflow to 0 in a tune, so there is definitely a way around this with software. I’ll worry about that once I get it up and running though, because from what I read, the worst that will happen is it will just throw a CEL until I fix it. Not a huge deal in the meantime.

The engine is missing a few things, namely turbos and the !!!error: Indecipherable SUB-paragraph formatting!!! . My buddy who is helping me with this build has extra sets of the stock S4 KO3 turbos, so I’ll be buying a nice, low miles set off of him to put on, and most of the other stuff I can salvage from my existing motor. I’m also ordering this !!!error: Indecipherable SUB-paragraph formatting!!! to put on, as well as a new clutch.

I really can’t wait to get this thing on an engine stand and start tearing into it. All of these things will be so much easier to do with the engine out on a stand, and I can take my time and make sure everything gets done right.

Making progress!

P.S. !!!error: Indecipherable SUB-paragraph formatting!!! started a !!!error: Indecipherable SUB-paragraph formatting!!! to catalog the build.

DISCUSSION (25)

OPPOsaurus WRX > Garrett Davis
09/21/2016 at 19:47

That looks like a crazy. This makes me happy.... That I’m not doing that. What’s the hp on the s4 engine? Is it the same as an Allroad

jkm7680 > Garrett Davis
09/21/2016 at 19:49

Awesome!

That Bastard Kurtis - An Attempt to Standardize My Username Across Platforms > OPPOsaurus WRX
09/21/2016 at 19:49

I think it's rated the same, 250.

jkm7680 > OPPOsaurus WRX
09/21/2016 at 19:50

250, it's the same.

That Bastard Kurtis - An Attempt to Standardize My Username Across Platforms > Garrett Davis
09/21/2016 at 19:51

Get yourself a cam lock tool for the 2.7. It holds the cams in place while you do the belt change, and usually it comes in a set with a crank lock for when you do the lower front seal.

OPPOsaurus WRX > jkm7680
09/21/2016 at 19:52

The S4 must be smaller and quicker. For some reason I thought the S4 had around 300hp.

jkm7680 > OPPOsaurus WRX
09/21/2016 at 19:54

The 0-60 on my A6 was 6.0 and with the S4 it’s 5.5 I think. The A6 was only about 300 pounds heavier.

Not sure about the AR though, it’s probably slower because of the extra weight.

OPPOsaurus WRX > jkm7680
09/21/2016 at 19:56

Yea the Allroad is a fatty at 4200lbs

Garrett Davis > That Bastard Kurtis - An Attempt to Standardize My Username Across Platforms
09/21/2016 at 19:58

Luckily my buddy has all the needed Audi specialty tools, including the cam lock, and has done a ton of timing belt jobs on this engine. If it wasn’t for him, I would not be equipped to handle this project.

Garrett Davis > OPPOsaurus WRX
09/21/2016 at 20:00

Yeah, the Allroad is a bit of a pig. Stock 0-60 was listed as 6.8 seconds. With the big tires, I suspect it will be firmly in the mid-7 second range, but that’s not really the point of the build.

OPPOsaurus WRX > Garrett Davis
09/21/2016 at 20:01

6.8? Maybe down hill in a hurricane

Garrett Davis > OPPOsaurus WRX
09/21/2016 at 20:07

That’s with the manual! The tiptronic was rated at 7.3.

OPPOsaurus WRX > Garrett Davis
09/21/2016 at 20:55

a few ideas for your project:

Kinja'd!!!

That Bastard Kurtis - An Attempt to Standardize My Username Across Platforms > Garrett Davis
09/21/2016 at 21:22

That’s a handy guy to know. The timing belt job isn’t as difficult as everybody likes to say it is, there’s just a lot to do. It’s actually pretty difficult to mess up, but being off one tooth will set a CEL.

I’m very interested in following this project...if I ever win the lottery, I’d track down my former allroad, buy it, take it to my local Audi dealer with a blank check and just say “fix it.”

That Bastard Kurtis - An Attempt to Standardize My Username Across Platforms > Garrett Davis
09/21/2016 at 21:24

Also, maybe start tagging progress with ‘expedition allroad’ to help jerks like me who aren't on here constantly track it? Haha.

Garrett Davis > That Bastard Kurtis - An Attempt to Standardize My Username Across Platforms
09/21/2016 at 21:30

Thanks for reminding me! I tagged the first one but not this one.

Garrett Davis > That Bastard Kurtis - An Attempt to Standardize My Username Across Platforms
09/21/2016 at 21:32

Yeah definitely a good guy to know. He was building S4's with his friends in the early days of tuning these 2.7s, so he has a ton of great knowledge and a lot of extra parts, like the near mint KO3s that I’m buying off of him.

Oh man, I can only imagine what I’d do with this build if I hit the lottery... Right now I’m just itching to drive it. I’ve never even driven an Allroad yet!

deprecated account > Garrett Davis
09/21/2016 at 22:00

No 4.2?

Garrett Davis > deprecated account
09/21/2016 at 22:28

Nope, sticking with the stock engine for now at least. I’m getting a good deal on this engine and I know the history of it, which is rare. Plus my buddy who is helping me is something of a guru with these 2.7s, and they can make some pretty impressive power without much put into them.

I would pretty much need an entire donor car with a 4.2, as well as a swap kit in order to adapt the 6-speed to it since those were only ever available with a manual.

Garrett Davis > OPPOsaurus WRX
09/21/2016 at 22:32

I’m legitimately digging the shooting brake ones! hahaha those are awesome!

deprecated account > Garrett Davis
09/22/2016 at 09:16

Either way, awesome project!

Garrett Davis > deprecated account
09/22/2016 at 09:37

Thank you!

Knight > OPPOsaurus WRX
09/24/2016 at 04:13

Awesome Project! I’m just a bit sad to see an S4 B5 engine get ripped from an S4 B5. Always loved those cars.

Matt Hardigree > Garrett Davis
10/17/2016 at 14:00

You’re doing it right.

Garrett Davis > Matt Hardigree
10/17/2016 at 14:51

Thanks man!