Dyno + Inspection Prep for the Touring inspired Audi S4 (C4)

In today's episode, we take care of a ton of items to get the S4 ready for its inspection and dyno session. Specifically, we'll install a fuel level sender, conduct a boost leak test, install an electronic boost solenoid and do some fuel tuning.
Subscribe. bit.ly/supercarmio
IG. bit.ly/supercarmio-ig
00:00 - Intro
01:30 - Fuel Level Sender / Gauge Install
05:55 - Electronic Boost Control (Mac Valve install)
08:50 - Boost Leak Test
09:45 - Oil Change
10:50 - Inspection
11:20 - Test Drive / Fuel Tuning
12:40 - Where the car sits currently
15:26 - Outro
Have an episode idea you’d like to see? forms.gle/jMvT9PxNnBcqLF8z9
--------------------------------
FD RX-7 Bridgeport Build - bit.ly/fd-rx7-bp
FD Single Turbo RX-7 Build - bit.ly/fd-rx7-st
FC Turbo RX-7 Build - bit.ly/fc-rx7-t
NA Miata Turbo Build - bit.ly/na-miata-t
Evo 8 Big Turbo Build - bit.ly/evo-8-bt
B5 S4 Reboot - bit.ly/b5-s4-rb

[@eddieace345]

Happy to see you’re getting back to making content on the URS4

[@supercarmio]

Appreciate it my man! 🙌 My goal is to get it almost 100% ready for the next Cars in Coffee in May!

[@BrunerTuner]

Very happy to see you back with the projects man! This is such a cool car, and it sounds amazing! What a sweet build with the modern implementations you've added. Keep it up man!

[@supercarmio]

Yo!! Thanks man, really appreciate it. I've been doing some wrapping for the livery, I thought I liked it, but man is it frustrating haha.

[@BrunerTuner]

@@supercarmio Man it really is, that's one think I don't think I want to do myself haha! I'm sure you'll get it tho!

[@vadim2862]

Cool Bro!!! Waiting for the next episode of S4

[@americantaxpayer]

The plug wires above the downpipe are going to need heat shielding

[@supercarmio]

Yeah not a bad idea at all -- I was thinking about maybe a tube like this? www.bufkinengineering.com/L-DG65-17.jpg

[@shabadavtar9370]

Hey man in one of your past videos you put on a euro bumper. You were kind enough to share a link to it as well. Would you mind please sharing that again. I can’t seem to find that video anymore.😢

[@supercarmio]

Yeah dude for sure! For some reason I can't find it either, weird. Anyway, the bumper is produced by cool-wheels -> cool-wheels.com/tproduct/1-484485059911-audi-s6-c4-front-bumper-replica Available in US via U2R Classics -> u2rclassics.com/

[@shabadavtar9370]

What valve is that you used to increase the braking bias to the rear? I would love to do this to mine, but I don’t know how.

[@supercarmio]

It's a Wilwood proportioning valve -- was pretty easy to plumb in.

[@jo-qp7mz]

Boo euro stuff more fc3s Evo and fd boo euro. In all seriousness I'm super interested on how your turbo 6 port build was going

[@mushasho]

So no video on the Electric Ps and Vacuum Brake conversion????

[@supercarmio]

I didn't end up filming those -- it was pretty tough to get shots of the booster conversion hah. The EPS was almost exactly like this one I did: kzbin.info/www/bejne/jHiXYWiYaceSa7s

[@supercarmio]

But I will say the vacuum conversion was very straightforward EXCEPT I couldn't find the clevis specified in most of the conversion guides. I ended up modifying the OEM UrS one to work.

[@shabadavtar9370]

@@supercarmio are you going to be able to left foot brake while building boost on corner entry with the vacuum style braking? I’ve been really trying to get good at trail braking in my urs6 to get the boost up on corner exit. But maybe lag isn’t a big issue for you with that sized turbo and tubular manifold…

[@supercarmio]

@@shabadavtar9370 That's a great question. I'm probably not at your level of driving TBH haha. I guess a bigger/additional vacuum reservoir could help? But yea, the turbo is pretty modest in size, it seems to spool very quickly with this configuration.

[@shabadavtar9370]

@@supercarmio that’s awesome. It is a super balanced and super race car set up you have. With all that weight reduction it’s probably a hoot. Mine is a full interior daily car with big turbo so trail braking is super key up here at 9k feet of elevation. Once you start tracking it you’ll probably get super stoked on trail braking though. That was KEY for the IMSA GTO. Once the driver figured that out, it was game over for any other car. So much that IMSA had to demand severe power restrictions on it.

[@jo-qp7mz]

Wen Evo or fc3s or FD video?

[@supercarmio]

I am currently filming an Evo video -- installing standalone (MaxxECU.) Should be up next week. Thanks for watching!