MDUBZ Intro and B6 S4 Build Thread

Jake · December 8, 2019, 5:14pm

MDUBZ:

JimmyBones:

Nice man. The JHM intercooler really makes a big difference.

I have been there before.

It makes a huge difference. I actually didn’t realize until I spoke with Jason that he actually fabricated that intercooler. If I loaded it with ice I would have seen at least another pound of boost, maybe 2.

pwest15:

That’s epic man! If you’re free any time this week you should totally stop by my place so I can maybe get a ride

For sure man, you working on the car this weekend I’m assuming? I’ll roll by to help and go for a cruise.

happy2b5:

Yep, wonderful central cal summer weather. Dont miss it one bit. Car sounds strong.

Thanks man, yeah it sucks, but it was better conditions than I’ll ever see in Colorado.

sakimano:

what happened at the Sac dragstrip? How about the pikes peak airstrip event?

Ended up getting the car back Friday night rather than Wednesday afternoon. They applied a ceramic sealant to the engine so it’d stop chugging coolant which took a few days. I rolled into Sacramento around 8:30pm which left me with an hour and a half to unload my car, wait in line, and maybe get 1 run in. It was also going to cost nearly $100 for the 1 pass and waiting in line so I just gave up.

Pikes Peak Airstrip Attack was the next morning so I didn’t have enough time to make it. Got home around midnight on Saturday.

I’m going to try and make it back to Sacramento in November for the JHM Sacramento drag night

We have a drag night next week ;D

Jake · December 8, 2019, 5:14pm

A cool thing about that video is you are going up an incline too

MDUBZ · December 8, 2019, 5:15pm

Used the rest of my vacation time to come out there last month >:(

I should have enough by November though

justincredible · December 8, 2019, 5:15pm

wow your car was moving in that video. Sounded so good. Looks like your shifting is getting a little better. keep working at it and keep the updates coming

MDUBZ · December 8, 2019, 5:15pm

Thanks Justin. Still working on that 1-2 shift. I feel like I’m pretty good at nailing the 2-3 shift, just not quite perfect yet. It’s really hard to improve when you only drive 2,000 miles in a year and it’s all city driving. My cruising shifting is pretty damn good though Hoping to get some racing/track videos soon.

justincredible · December 8, 2019, 5:15pm

You look much improved from the one video I saw. Sounds like you had a few more rpms that you could have stayed in it for first but I dont think people understand how much tq these stage 2 cars make. I got to drive the local Rs4 stage 2 and its a lot of work and I know the S4 makes better down low tq then the S4.

Dont sweat the track. The post you made about trying to get down to the nov jhm event would be something cool. Anyways Im lovin the video and the updates keep em comming

evildsmr · December 8, 2019, 5:18pm

mec:

sakimano:

mec:

Stage 3 Rs4 ya say??? What is that? an even bigger supercharger?

not sure really. From conversations I’ve had with JHM people, here’s what I think is accurate:

stage 1 RS4 is the supercharger with no cooling system, running super low boost (6 psi). Good for around 400-425 whp (YDMV) and high 11s @ 116-118.

stage 1+ is the above with an intercooler…and I think a marginally smaller pulley/more boost. Not sure what that is good for. When this was on Dan’s car, he trapped in the low 120s and ran mid-high 11s.

stage 2 RS4 was supposed to be 9 psi and be good for 500 whp, and around 125 mph of trap, low 11s if driven well. This level of boost has been determined to cause some problems for the RS4’s engine, so JHM is hesitant to make this available for widescale retail release. I think if you want this on a stock engine, you will need to sign a pile of waivers that are about as thick as a rural phonebook.

stage 3 Rs4 is presumably built motor RS4 + lots of boost on the same blower. This is currently running on Dan’s car right now (the built motor) at lower boost but they will move that along over the coming months. This will be retarded strong.

stage 4 RS4 is built motor + bigger supercharger. Think about that for a minute. The V3Si they are using for stage 1-3 is good for around 650 whp. But it’s not big enough for stage 4.

Those 3 and 4 cars…not sure how many people will actually buy that, but I do know that what we see on forums is basically a tiny sliver of the market (grand scheme of things). For example we know of what…5 JHM RS4 supercharged cars on all of the forums (SAR in UK, Denis, Badtoyz, couple of others)…well JHM sold 5 superchargers in the last month, and have sold a few dozen and we have no idea who those people are. They have sold a pile of built motors for the B67 S4 but we know of exactly 2 (mdubz and the wagon from norcal). So we’re not seeing anywhere near the big picture.

Damn, everytime I turn around there is one more stage! Well that makes sense now why we haven’t seen many stage 3’s or why the kit isn’t really advertised either. I feel like if you shelled out the money to build the engine, you might as well take her the whole way, get all the horseponies.

Maybe stage 4 can compete with this 830whp rs4 - https://www.youtube.com/watch?v=cbtiU-ZniNw

lol le jokes, actually the guy is a local and he owns the body shop that fixed my car when it was rear ended. that 830 whp is more like 350whp on a good day. Pretty sick setup though, cameras intergrated into the front and rear license plates, custom euro rs4 seats with matching back covers, crazy amp setup in the back. The meth kit looked like a pretty cool install too, one of a kind stop tech brake kit, but i think it was a pes blower, i don’t remember but it wasn’t 830whp fast.

I think this is the one I saw at 3zero3 last weekend ? Can you confirm?

pwest15 · December 8, 2019, 5:18pm

Haha yeah I can confirm, that was it. Pretty awesome Supercar article was written about it. IIRC it was tuned by Quattro GMBH or something ridiculous like that with the PES kit

pwest15 · December 8, 2019, 5:18pm

Found it http://www.superstreetonline.com/features/eurp-1104-2007-audi-rs4/

mec · December 8, 2019, 5:18pm

pretty sure it’s just your standard pes kit. I rode in it when my car was in his shop, not really crazy fast. But it was a crazy cat. Port injected meth, one of a kind bbk, paint matched euro rs4 seats, four point harnesses,and a sweet audio setup, I don’t know the details since I’m not crazy into audio.

evildsmr · December 8, 2019, 5:18pm

Yeah from the video that thing didn’t seem that fast. Hell Mdubz car flies through the gears, this rs4 not so much. Good build tho.

justincredible · December 8, 2019, 5:18pm

Even the best PES kit sucked. The stage 2 JHM cars are the read deal.

MDUBZ · December 8, 2019, 5:56pm

Finally got the car back today. Put a new bumper, fender, and rocker panel on. Installed the carbon fiber relak side skirts finally. When it got here it was dirtier than a cocaine fueled hooker so I took it for a wash and then, for the first time in over 3 months, got some groceries.

http://uploads.tapatalk-cdn.com/20160704/587ff98a775d9b32abd11187d3c9e5ff.jpg

http://uploads.tapatalk-cdn.com/20160704/eceb4613e75e273e6b460ef6c8d2fa85.jpg

http://uploads.tapatalk-cdn.com/20160704/7df6ac6d7d96d6d869097a0a8f0cb5b3.jpg

Also decided to rock the JHM Vortech sticker. It’s the only way to take full advantage of stage 2

vtgt · December 8, 2019, 5:56pm

Nice sticker ;D

pwest15 · December 8, 2019, 5:56pm

Excellent man! Glad you finally got her back! How’s she drive? Quicker than before?

Sent from my potato

JimmyBones · December 8, 2019, 5:56pm

The car looks good!

tymeks · December 8, 2019, 5:56pm

Looks great!

c0ntract_thrilla · December 8, 2019, 5:56pm

Where was the car? I have been missing the updates! Any plans to get it out to the strip? I would love to see what it can do with the stage 2.

justincredible · December 8, 2019, 5:56pm

http://uploads.tapatalk-cdn.com/20160704/7df6ac6d7d96d6d869097a0a8f0cb5b3.jpg

The car looks awesome. It looks as fast as it is thats one sweet car

MDUBZ · December 8, 2019, 5:56pm

Thanks, I actually kinda like it.

Just getting used to driving it again. Seems quicker yes, just need to get through all this 91 in the car and put some 93 in it.

Thanks Jimmy, just gotta get some carbon fiber door blades and interior trim and I think the car will be complete finally.

Thanks man.

I sent the car to JHM back in March for a few things. I had to get the electrical cam adjuster unit replaced because it failed. That also caused the OEM mechanical cam adjusters to get wallowed out even though they had less than 5000 miles on them so I had the JHM mechanical adjusters installed. The ECU somehow got wet and became rusted so I had to get a new one. My transmission needed to be rebuilt. I got the new JHM Carbon synchros installed. I was gonna get the new JHM front LSD installed, but with the surprises the bill just got too high so I ended up passing on it.

http://uploads.tapatalk-cdn.com/20160704/7c96cfef9eb93e0c5c6155142bfab88c.jpg

http://uploads.tapatalk-cdn.com/20160704/6f289757c1bec426928fe9ab5d893a37.jpg

I also got a full stage 2 93 octane tune for sea level flash. CV was also nice enough to write me a race gas tune so I can flash that on the car when I want. Today I also removed the mid pipes with the high flow cats and put the catless mid pipes in.

http://uploads.tapatalk-cdn.com/20160704/bb335a2796cef017c3c46895d7e02e2b.jpg

Gonna try and hit up Great Lakes Dragway next weekend with a bucket of ice and a drum of MS109.

Thanks Justin. The Relak side skirts really make the car look good. Gonna try and do the clear corner mod sooner than later.