Jim Green's 90q 20vt - 636whp 07k

virtuapete · Post by **virtuapete** » Thu Feb 02, 2006 8:20 pm

Toxcheap wrote:Damn I just saw the pics what the hell happened?

DITTO... kinda looks like your hotside went to the southside LOL

WAUG0806 · Post by **WAUG0806** » Thu Feb 02, 2006 8:21 pm

Toxcheap wrote:Damn I just saw the pics what the hell happened?

:stupid: Improvised Explosive Device??? :frustrated: :x :(

audifreakjim · Post by **audifreakjim** » Thu Feb 02, 2006 8:21 pm

So I was driving along doing 2nd gear pull after 2nd gear pull fine-tuning the car. It was running great at 24 psi of boost. I did a bunch of runs at this level because my knock light kept lighting up and I couldn’t figure out why. Finally narrowed it down to the coils had to much dwell and were tripping it. Cool. So I gave the schrapenalknobben a good turn. Sweet, 27 psi no knock. Damn, I didn’t have the logger going so let’s do it again, but with more boost. Another 1/2 turn later there’s sparks shooting out of the hood vent. WHOA! FECK, the turbo just let go. Lucky for me the car was still running, but with a large exhaust leak so I limped it home 3 blocks and found this:

So why did this happen? Well, who knows. I did just get done trasfering everything over to a new bearing housing because I was having problems with oil seeping out the back. Well it's still dry even after all this. It looks like the turbine just snapped off. I made sure everything went back on exactly how it came apart, and it's not like I haven't done this before..... I think I just overspun it. 30 psi is alot of boost at this altitude and I really had to crank on the boost controller to get it up there.

So now I have to decide to get a GT30R or GT35R. I really wish I could have hit the dyno with this, but after logging boost curves I think I can get a good plot of what it would have done. I think this turbo would have landed right between the two, which is where I want to be.

Toxcheap · Post by **Toxcheap** » Thu Feb 02, 2006 8:28 pm

Damn that sux man!!
Guess that motor just wants a bigger turbo. What are you thought on the two turbo your considing?

zepmoreau · Post by **zepmoreau** » Thu Feb 02, 2006 8:32 pm

Damn Jim! you'll have to agree that was a big surprise!! Crimany!!!

Post by **Marc** » Thu Feb 02, 2006 8:43 pm

swiss cheese, anyone??

Dayum jim!

Post by **Marc** » Thu Feb 02, 2006 8:54 pm

I almsot feel like I should post a folllowup saying sorry for your loss? Heck, the way we treat our turbos I dont think thats fitting

audifreakjim · Post by **audifreakjim** » Thu Feb 02, 2006 9:39 pm

Yea, it's funny, I'm pissed that it happened, but first thing I went up, grabbed the wife and said come look at this crazy shit! All the while laughing while taking pictures. She told me she's taking the new turbo money and committing me. I’ll pull it all apart tomorrow, but the turbo still spins free with little play and from what I can tell the compressor didn't even hit.

The new bearing housing was a last ditch effort to save this guy so I’ve been looking at new turbos for a while, kind of anticipating this. The GT30R is great at sea-level and no doubt I’d go with that if I lived down there. But the reality is it takes a pressure ratio of 3.9 to get there at my altitude. Toss in a 12,000 ft pass every now and then and I really start to fear for turbos up here. No wonder those K03’s fail all the time here. I’ve done a bunch of plots at work and I’ll post them tomorrow to see what you guys think. I really want to see how Hap’s car does on the dyno with the GT35R and I honestly might wait if he gets it on the road this weekend.

Then there’s the, how fast does this really need to be factor. It was frightening at 27 lbs of boost, and without the diff locked it was a real handful. I need to talk to my supplier and see what he thinks :wink:

pro_mtn_biker · Post by **pro_mtn_biker** » Thu Feb 02, 2006 10:12 pm

Damn!!!! That means no dyno on Saturday huh? If you car was anything like Javad's which was out 28 psi when I rode in it. I'd agree, its pretty frightening, but more could only be more fun! :woowoo:

virtuapete · Post by **virtuapete** » Thu Feb 02, 2006 10:22 pm

Ahhh well atleast ya kinda knew it was coming, just didnt get the invite for the date the party was taking place! lol

Sucks but good things are on the horizon man! LONG LIVE THE GINSTER! :-D

Gonna leave the hood as a battle scar? LOL

TheArchitect · Post by **TheArchitect** » Fri Feb 03, 2006 12:20 am

audifreakjim wrote:I need to talk to my supplier and see what he thinks :wink:

You mean your pusher?

So how do you like being able to "see" 27 psi?

yodasfro · Post by **yodasfro** » Fri Feb 03, 2006 12:53 am

Good lord

So it looks like you need move up to a turbo from an airplane.

birdmanmt · Post by **birdmanmt** » Fri Feb 03, 2006 6:34 am

holy crap! man your lucky if it didn't do any damage to the engine! mmm....carnage...mmmm. :-D did it damage the exhaust mani at all?

quattro87 · Post by **quattro87** » Fri Feb 03, 2006 7:06 am

Just saw the pics

To bad, but could have been worse. By the way the 3071 survived with only bits and pieces of alluminum in the housing. I see that you have allready mentally skipped over the 3071 in favor of a GT30R or even a a35R! That beast must really breath. :-D

Audilard · Post by **Audilard** » Fri Feb 03, 2006 8:55 am

That's some serious power. And yes, being in Salt Lake, I understand the altitude problem.

audifreakjim · Post by **audifreakjim** » Fri Feb 03, 2006 9:01 am

TheArchitect wrote:
audifreakjim wrote:I need to talk to my supplier and see what he thinks :wink:

You mean your pusher?

So how do you like being able to "see" 27 psi?

LOL! Being able to tune up in that range is awesome. It's nice to just set the main scaler and crank up the boost. No more special tuning for the top row :woowoo:

Yes I'll be keeping the dents in the hood! My wife was more concerned about that than the turbo :wtf:

John, I looked at the 3071 just because of the insane pressure ratios it can hold, but the real fun in this motor is up top, and that's what I built it for.

I'm 99% sure I'm going with a GT35R. The compressor wheel and turbine are smaller in size than my current turbo. Add ball bearings into the equation and I can't see how I could be worse off response wise than I am right now.

Now I just need to decide what A/R housing to use. I'll probably stick with a .63 and use closed loop boost control to combat surge in higher gears.

Audilard · Post by **Audilard** » Fri Feb 03, 2006 9:26 am

Hey Jim, important car question for you.....

How did you get your wife to be concerned about your turbo???? Or your car for that matter???

Audilard · Post by **Audilard** » Fri Feb 03, 2006 9:28 am

I had my hood from my glacier blue 90 I would have given you when you come to Salt Lake, but our auto parts client came and got it. If you want a free hood I can see if I can get it back?

Derracuda · Post by **Derracuda** » Fri Feb 03, 2006 9:51 am

that dent is fixable, but he said he wants to keep it

sick sick man

audifreakjim · Post by **audifreakjim** » Fri Feb 03, 2006 9:54 am

She really doesn't care, but she was the only one around so I forced her to come see. Thanks for the hood offer, but one of these days I'll be doing a B4 hood with S2 bumper conversion :-D

TheArchitect · Post by **TheArchitect** » Fri Feb 03, 2006 10:01 am

So then is 4 bar enough?

Audilard · Post by **Audilard** » Fri Feb 03, 2006 10:06 am

audifreakjim wrote: Thanks for the hood offer, but one of these days I'll be doing a B4 hood with S2 bumper conversion :-D

Well, I don't have either of those lying around...but there is a certifit warehouse here in Salt Lake that might have a $80 B4 hood. Maybe give them a call.

WAUG0806 · Post by **WAUG0806** » Fri Feb 03, 2006 10:17 am

audifreakjim wrote:She really doesn't care, but she was the only one around so I forced her to come see. Thanks for the hood offer, but one of these days I'll be doing a B4 hood with S2 bumper conversion :-D

reminds me of my fiance.... blank stare and only response to showing her anything I am breaking or fixing is "can I go now" or "how much does it cost?"

Jim,

It looks like you'd have "holed" your hood if not for that heatshield...

I have replacement for same turbo coming (hopefully today) from Swanson Motors ... mine trashed the center seals/bearings in a much less spectacular way...although it's the biggest cloud of smoke i ever made with a car - I'll be going from 50 trim to 57... felt like the 50 trim was "out of breath" (700' -2500 elevation here) above 5000RPM and boost drops so hope the 57 can keep up better... imagine you do need bigger turbo as your 20V has almost every heavy breathing bit available + the thin air...

JShadzi · Post by **JShadzi** » Fri Feb 03, 2006 11:09 am

Holy bejesus!! Man, never done that, only with trannies

Good work, now onto some dual BB action

84urq20v · Post by **84urq20v** » Fri Feb 03, 2006 1:14 pm

pro_mtn_biker wrote::stupid:

:stupid: :stupid:

let me know I'm game for Audi geek stuff

Brandon