Real-time Supercharger Teardown

[fitzydude]

I picked up a damaged supercharger on Craigslist from a 2015 A7 with 10k miles on it. I was planning on using it on my car, but it's a little too damaged for me to use the whole thing. Now I'm going to gut it and send out a few parts to some members on here and maybe swap the internals for mine with 111k.

I figured I'd post some pics on here and get some help along the way.



Here's a pic of the damage. The car was in a wreck and it looks like it bent the water inlet flange and took a chunk out of the bracket that holds the front belt cover on

[fitzydude]

Throttle body and map sensor were easy enough! Any takers??

[fitzydude]

7 bolts held in the bypass valve. Why can't I just weld this thing shut?!?

[fitzydude]

Here is a comparison of supercharger oil

Here is new supercharger oil


This is your supercharger oil at 10k


Here is your supercharger oil at 110k


I suggest changing somewhere between 10k and 110k ;)

[fitzydude]

Surprised by how much additional oil came out when I pulled the front off.

[RedS-line]

SCARY, how did your supercharger die, it died at 110k miles?

[fitzydude]

SCARY, how did your supercharger die, it died at 110k miles?

Actually my supercharger is on the car and still rocking. This super charger with 10k from an A7 has some damage on the housing or plenum. So I'm tearing it down and selling/reusing what parts I can. Plus it's practice if I decided to work on my supercharger later.

[fitzydude]

Here are the scrolls coming out, I was worried I'd have to pull the gears on the front, but the whole thing just slides right out when you break the seal


Just begging me to take the dremel to it!!

[fitzydude]

Does anyone have some pro-tips for removing the intercoolers without breaking them?

[DGVR6]

Do us all a favor.. Send the oil from the 100k+ charger and send it for analysis.
Would be nice to know what's going on with that

Nice pics btw thanks for taking the time to do this

[fitzydude]

Got the intercoolers removed... Do not try to pull or pry on these things to get them out. I started with the bent one first and tried pulling on the back gently. It came out but I ended up bending some fins and bending the flange on the back... On the good one I just beat the front with a rubber mallet and it just popped right out with no damage

[Dudemans4]

Does anyone have some pro-tips for removing the intercoolers without breaking them?

Rubber mallet got mine out

[jmaddr]

Love this thread. Thanks for doing this.


Sent from my iPhone using Tapatalk

[bhvrdr]

Love this thread. Thanks for doing this.


Sent from my iPhone using Tapatalk

I agree. Thanks so much.

mike

[fitzydude]

If anyone needs any parts from this I'll post them for sale on the classifieds. Thanks!

[RWD2quattro]

I wish someone would develop a higher flowing IC coolers with less pressure drop by decreasing tube/fin count (larger). Stock IC fins/tubes look small, maybe we may see some gains there with an AMS or APR external cooler and secondary coolant pump? Any thoughts?
Thanks for taking the time to tear apart SC, I'm in for oil results.

[cchoi83]

Do us all a favor.. Send the oil from the 100k+ charger and send it for analysis.
Would be nice to know what's going on with that

Nice pics btw thanks for taking the time to do this

This.

[jrivera]

Good job!

[A.Bruno6]

This thread is great! Thanks for taking the time to do this!


Sent from my iPhone using Audizine mobile app

[xcnovanrunner]

Do us all a favor.. Send the oil from the 100k+ charger and send it for analysis.

Would be nice to know what's going on with that



Nice pics btw thanks for taking the time to do this

+1

[Pyromatic177]

Very interesting to see what makes our cars so fun taken apart! Lol. Nice thread.

[chaos2984]

where do you get the S/C oil from? Might have to change like every 30k or something.

[AudBoost]

where do you get the S/C oil from? Might have to change like every 30k or something.

ECS sells it: https://www.ecstuning.com/Search/Sit...Oil/ES2099956/

[s4matty]

You can also buy the oil from Chevrolet..Cts v and vette use the same oil..It's only $6 a bottle,you need 2 bottles though.

Sent from my SM-G900W8 using Tapatalk

[Loe]

You can also buy the oil from Chevrolet..Cts v and vette use the same oil..It's only $6 a bottle,you need 2 bottles though.

Sent from my SM-G900W8 using Tapatalk

WOW @ the Audi tax on this fluid!

[amz]

I kinda wish teardowns like this were done with a gopro attached to their head. That way, not only do we get pics, but an informational video.

Thanks for the photo's though, this is great info!

[fitzydude]

I kinda wish teardowns like this were done with a gopro attached to their head. That way, not only do we get pics, but an informational video.

Thanks for the photo's though, this is great info!

Haha well that would just be me half drunk and cursing for 4 hours. I'll keep it in mind when I do something like this again.

[jimrobbington]

Haha well that would just be me half drunk and cursing for 4 hours. I'll keep it in mind when I do something like this again.

Hahaha

[jsh139]

And this, ladies & gentlemen, is where that sweet whine comes from :D

[amz]

And this, ladies & gentlemen, is where that sweet whine comes from :D

Really? Does the sound get transmitted through the lobes and then back into the intake? I'm curious why going from stock to, for ex, Roc Euro, produces such a dramatic change in SC whine if it's originating from those gears and not something in the compressor chamber.

[jrivera]

Straight tooth makes more noise than helical.

[OnEaNgRyBuNnY]

Really? Does the sound get transmitted through the lobes and then back into the intake? I'm curious why going from stock to, for ex, Roc Euro, produces such a dramatic change in SC whine if it's originating from those gears and not something in the compressor chamber.

That's what I would assume and the whine does sound like that of straight cut gears.

[jimrobbington]

Really? Does the sound get transmitted through the lobes and then back into the intake? I'm curious why going from stock to, for ex, Roc Euro, produces such a dramatic change in SC whine if it's originating from those gears and not something in the compressor chamber.

The stock intake is designed to muffle as much sound as possible

[jsh139]

That's what I would assume and the whine does sound like that of straight cut gears.

Aw, snap! Someone said the magic words!

[amz]

That's what I would assume and the whine does sound like that of straight cut gears.

The stock intake is designed to muffle as much sound as possible

Huh, cool I guess. RocEuro is a great investment for letting the sound out :D

[jimrobbington]

Huh, cool I guess. RocEuro is a great investment for letting the sound out :D

Yeah, it's not that an intake causes more noise, you are just removing all the stuff that helps cancel the sound that's already there

[B8_Jim]

And this, ladies & gentlemen, is where that sweet whine comes from :D

It isn't.

[cspcrx]

Aw, snap! Someone said the magic words!

that hurt to listen to!

[SquiddyB6S4]

Straight tooth makes more noise than helical.

That's why us B6/7 S/RS4 guys have supercharger whine . . . those wonderful straight cut gear driven accessories that make so much dang sense "But, your honor, they pack so much power transmission ability into a small and lightweight space!"

Fitzydood - Greay work. Also, you are funny when you write the same as when you speak.

[OnEaNgRyBuNnY]

It isn't.

Then where???