I took the BLUE Pill. Engine bay painted

quattro v1.0 · Post by **quattro v1.0** » Tue Aug 12, 2008 11:30 am

ok cool, I actually adjusted it a bit with the idle air screw last night when I got home. I was going the right way in row 2 - .9's but I didn't touch row one. I will fatten that up a bit.

85oceanic · Post by **85oceanic** » Wed Aug 13, 2008 5:12 am

I have to say, your URQ is one of my fav! It's my new background.

quattro v1.0 · Post by **quattro v1.0** » Thu Aug 14, 2008 4:08 pm

Thanks man.

I took alot of pics last weekend, but I couldn't resist taking a bunch of my own car since it was "all-new" with the hood and bumper etc...

quattro v1.0 · Post by **quattro v1.0** » Sat Aug 23, 2008 2:21 pm

Now that I have decompressed from the trip to UrQ25 - and the months leading up to it, I started to look around and check how things are holding together. I have to say I was pretty happy lying under the car, everything looks to be in order, just as when I buttoned it up.

One of the reasons I crawled under there in the first place was to switch wastegate caps and springs. I had a drilled cap, and a bit stronger spring - yea I want a lil BOOST now already...

I swapped them and took a lil ride. I added about 3-4 more lb boost, up to maybe 13-14, still very conservative - but it is also about 103 degrees outside today.

The biggest improvement was actually the cracking pressure of the wastegate itself. The original spring had to be letting go at only a few psi, power delivery was very linear but it didn't have much kick. With the extra preload of the new cap/spring combo it builds boost much quicker, I finally started to feel a loss for traction off the line.

I will probably drive it like this for a couple weeks until I figure out how I want to deliver my added boost: MBC vs N75. I have to up the boost soon, I don't want to be over-spinnin' the turbo and sending all that boost out the 'gate

I had my first hit off the boost crackpipe today - that 2871r has to be the best turbo for a street driven 20v out there... It doesn't even know what lag is.

quattro87 · Post by **quattro87** » Sat Aug 23, 2008 3:46 pm

The tube header, three inch downpipe, and 8lb flywheel probably doesn't hurt either.

quattro v1.0 · Post by **quattro v1.0** » Wed Dec 10, 2008 11:41 am

Not too much to report here lately, but something isn't right when a project thread falls back to page 10...

I had a little frustration building as I could hear an exhaust leak developing. I stoped driving the car for almost a month since it sounded like a piece of crap. the weather is far too nice to not drive the car so I broke down and went to work on it. I pulled off the grill and got it up on the ramps. Anyone that has seen my header / intake setup can imagine the nightmare that this could have been. The Audi Gods were shining down upon me that day, the first two nuts I touched were the culprit. There was no dark blowby and the gasket was intack so I could it in time. I was pretty relieved that when I started the car it was as quiet as ever. I had nightmares of cracked headers and broken studs...

I picked up a Hallman manual boost controller locally. It has the heavy spring and the ceramic ball, nice unit. I hope to get that plumbed once I get back in town from this trip.

Next on the list will be the 3" race CAT and the new muffler. I gotta keep it legal here in NV, and Im tired of changing exhaust systems twice in one day just to pass smog. I have a 3" Aero Turbine muffler replacing the Stebro unit.

Once the boost is up to where it's making some power I will take a run or two at the strip to see if my efforts on this rig have been worth it. If feels strong but I know a certain 5000CS that pulled pretty hard with a similar setup...

Post by **Hank** » Wed Dec 10, 2008 11:56 am

Let me get that exhaust yo!

That was rad Sean when you left a burnout in front of my house. The car sounds really good.!!!

quattro v1.0 · Post by **quattro v1.0** » Wed Dec 10, 2008 12:06 pm

I shoulda locked the diff's LOL

quattro87 · Post by **quattro87** » Wed Dec 10, 2008 8:51 pm

I like how you showed the green RS2ed S6 on the trailer just who was who around the neighborhood. The Urq looked and sounded good as usual. I guess with those kind of visits that eventually I will have to get going on the red Urq.

quattro v1.0 · Post by **quattro v1.0** » Thu Dec 11, 2008 12:23 pm

I have been searching threads about the MBC (manual boost controller) plumbing.

We chatted about this last weekend and we had some opposing thoughts on how to plumb it. I have the Hallman with the heavy spring and ceramic ball.

With the Audi wastegate which is the best way to utilize this MBC ? I had intended to apply boost back to the top of the wastegate via the MBC to act as having a heavier spring in the wastegate.

The other way we talked about running it was to install it in the large line running to the bottom of the wastegate. This would be limiting the boost that the bottom of the WG saw therefore letting the spring hold the pressure...

Which is better or more reliable? Im looking to start reaching towards 18lb and then tuning my way up to the 22lb range.

derracuda · Post by **derracuda** » Thu Dec 11, 2008 10:28 pm

plumb the MBC into the signal line on the bottom of the wastegate.

quattro v1.0 · Post by **quattro v1.0** » Sun Feb 15, 2009 6:58 pm

derracuda wrote:plumb the MBC into the signal line on the bottom of the wastegate.

...and so he did.

WoW.

I had a little time to spend in the garage in between trips. I began to eye-up a spot to mount the boost controller. This seemed like as good of place as any. I works fine here, it will be a test of character to see if I keep from moving within range of the drivers seat.

A shot of the engine bay, everything seems to be holding up well since finishing it up in August.

I dialed in the boost today, the WG was letting go early and holding maybe 13lb or so. I have had the boost controller for a couple months, but hadn't taken any time to install it. After mounting it I crept it up to about 22lb, I might have heard a bit of detonation but the A/F looked good at mid/12:1 on boost. I think it will be time to start working on the timing if Im gonna keep the pressure. I pulled it back down to a nice 20lb and it ran like a scalded cat. It makes boost SO quick. So quick that I blew off my lower charge pipe. Thats tuning right? Up the boost til something blows apart and then come down a pound or two?

s2 on the way · Post by **s2 on the way** » Sun Feb 15, 2009 7:06 pm

sounds about right to me

I bet that 20psi is much more fun......
mighty nice engine bay I might add :thumbsup:

quattro v1.0 · Post by **quattro v1.0** » Sun Feb 15, 2009 7:08 pm

I have been in some quick UrQ's - HANK!!

But this thing is pretty ferocious with this GT2871r spooling so quick - also the 4:11's WoW

I can't wait to line it up along side someone and GO

quattro87 · Post by **quattro87** » Sun Feb 15, 2009 8:45 pm

May I suggest that if you don't care who that someone is that you want to line up along side, that we go out next weekend and do just that. I'll run the Cayman S and you run the Urq. :-D That ought to be close enough that I would be able to give you a run for your money if I dumped the clutch at 5k and redlined all the gears. It sounds like a lot of fun and being that they are both your cars it would be a win win for you. Let me know what you think.

quattro v1.0 · Post by **quattro v1.0** » Sun Feb 15, 2009 8:58 pm

Well, the Cayman has gas in it from Dec 31, that can't be good right? I'd have to do something about that... Between being out of town half of the year so far, and driving the UrQ alot, the poorsche isn't gettin' much love.

cuatrokoop · Post by **cuatrokoop** » Sun Feb 15, 2009 9:08 pm

My friend that lives in town would probably drive the Cayman (or urq) for you :-)

quattro87 · Post by **quattro87** » Sun Feb 15, 2009 9:13 pm

Sounds like the TT at my house, but I'm not driving the Urq. It's the bike at my house that gets all the love. We could remedy that poor poorche not gettin any love and I would love to help. I wouldn't even feel bad if the Urq pulled me since I already would have a ready excuse of old bad gas.

Post by **Hank** » Sun Feb 15, 2009 11:28 pm

Looks good Sean!!!! i cant wait to get down to vegas and try it out!!! I am glad that the header and everything is holding up!!

SeStone · Post by **SeStone** » Tue Feb 17, 2009 3:26 pm

Might I suggest running a little richer than ~12:1 lest you're running meth injection or such? It is a 20v...

Sam

quattro v1.0 · Post by **quattro v1.0** » Tue Feb 17, 2009 8:20 pm

SeStone wrote:Might I suggest running a little richer than ~12:1 lest you're running meth injection or such? It is a 20v...

Sam

I hear ya, I do see ratio's in the high 11's through the range but it all happens too quickly to process by myself in the car. I really only did 2 or 3 quick runs so far. I will need a willing passenger next to me to go out and really get it dialed in.

I wonder if there is anyone in Vegas willing... 8)

RSCoupe · Post by **RSCoupe** » Tue Feb 17, 2009 9:35 pm

Time to put it on a dyno for some fine tuning. :-)

Post by **Hank** » Tue Feb 17, 2009 10:19 pm

I happen to know a guy with a dyno that lives a few minutes away from me.. In fact, he is a block away from your old house Sean!

quattro v1.0 · Post by **quattro v1.0** » Wed Feb 18, 2009 12:05 am

Hank, is he ready to start dyno'ing? Last time I saw him he wasn't quite set up yet.

quattro87 · Post by **quattro87** » Wed Feb 18, 2009 3:19 am

I wonder if there is anyone in Vegas willing...

I won't be much good next to you in the Caymen S. I think that with my eyes getting as bad as they are, I probably won't be able to see the laptop at that distance and speed. Sorry!!