just wondering.......gt-2871, what else?

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Old 04-06-2006, 03:58 PM
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Default just wondering.......gt-2871, what else?

Patient: 200q20v

Just wondering what other parts I need to upgrade my stock turbo to GT-2871.

I saw some posts on motorgeek about it, but can't find any breakdown of what's needed.

034 has a kit for about $1800 but I know I would also need an exhaust manifold.

Another poster mentioned on audifans that forged internals and head studs are necessary for application over 4xx hp, compression dropping head gaskets.

Anyone in the northeast (ny/nj vicinity) install these? I'm looking for a ballpark dollar figure...... can anyone shed some light?

thanks

Chi
Old 04-06-2006, 04:38 PM
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Default Re: just wondering.......gt-2871, what else?

you might want to look for something a little bigger to get into the 400s unless you are talking about flywheel hp. even then the disco potato will be rather small with boost falling off.
Old 04-06-2006, 08:18 PM
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Default i'd disagree

you don't need a different exhaust manifold. that's the beauty of what 034 sells. it bolts up to the manifold. then you just need to orient things, and convert the oil and cooling lines.

I'd contact rockinv8q over on MG and talk to him. a lot of experience. and a 2871 should be good for 400+ HP and the stock everything is good for 500 CHP.
Old 04-06-2006, 08:42 PM
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Default I've got that exact turbo on my car from 034EFI... and its a 20020v! You are in luck!

Here is everything that you are going to need if you go non-034...

You'll need the turbo, (a new manifold... sport quattro or rs2... or some kind of custom what have you... I am still running the stock manifold, though I understand the rs2 is supposedly better for protection of #1 and #5 cylinders and apparently a slightly greater flow... whatever, I was cheap and in a rush though I kind of regret not doing it when I had the head off... I'm ranting), you'll need an oil supply and oil drain line (either custom or 034) as well as a coolant supply / drain line, oil restrictor fitting for the oil supply line, uh... the appropriate gaskets for both ends of the oil supply / return and coolant lines, you'll also want to get a multilayer steel gasket to go between the turbo and the down pipe, (a new manifold gasket if you change the manifold or remove it from the head for some reason) and a multilayer steel gasket between the turbo and the manifold. You'll also want to do your ECU software - I have the 2.5 bar software which isn't even close to enough... this puppy could flow 30 PSI, I am sure of it... I can hit 25 PSI without a problem - though I don't go above 21 PSI as my software doesn't care to support that. Rs2 software should work, or you could get custom software... minhea, lehmann, 034 (?) I can't remember all the tuners...

That should do the trick for you... I decided to go 034efi to reduce the headache of part hunting - Also, I like to support Javad and his company - only top of the line products, great support, and really good people - they are worth it to me.

And as far as installation goes - do it yourself - you'll be that much more proud of the result and the bragging rights of "I did this" are so much more gratifying than "I had this installed for me". I'll be happy to help you through every step of the way - the turbo install isn't too bad at all - a couple tight nuts in places - but what the hell, its an audi, right? One last thing - I am sure any shop is going to charge you up the *** to install this thing because they know you don't know what it takes to install it - you brought it to them.

Let me know if you want more details - as I said before, I'll tell you every little step you need to know - I have a mind like an iron trap for hands on projects.

Andrew
Old 04-06-2006, 08:45 PM
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Default Birdman - what IS your stance on the manifold debate?

By the way - I'm finally enjoying the turbo you MADE me buy... and trust me, it was worth the wait.

I still have the stocker manifold on there - what do you think about it? I got a chance to closely inspect an RS2 manifold - remarkably similar except that the runners all feed essentially into one collector as opposed to the way the stock guy is. Do you agree with the potential cylinder damage from a non-rs2? How about performance wise... think there is a difference?
Old 04-06-2006, 09:35 PM
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Default my stance is relative to how much boost someone would want to run.

i agree that the design of the rs2 is far superior. if you're going to push things, then it's a really good idea.

it should help spool up quicker, and give more even flow to the turbo. it's not out there just to be different or expensive!
Old 04-07-2006, 03:15 AM
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Default my biggest fear

<center><img src="http://forum.vwsport.com/pics/data/500/medium/h1.jpg"></center><p>is removing the exhaust manifold. I've heard that you are gauranteed to break at least one of the bolts and then have to somehow extract it/them.

I'm interested in the lovefab tubular header for which there is a $900 group buy going on.

It looks really nice, but there seems to be issues with stress cracking due to the weight of the turbo (not specifically the lovefab piece).

I'm going to use 034, but not sure if the RS2 EM will be less prone to cracking. It looks like it will all fit since aerohr is using the stock EM.<ul><li><a href="http://www.motorgeek.com/phpBB2/viewtopic.php?t=9259">Lovefab tubular exhaust manifold link</a></li></ul>
Old 04-07-2006, 03:35 AM
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Default Its tight - it BARELY fits and you'll be slamming your knuckles against things left and right...

and the clocking of the turbo (to be explained later if need be) sucks... gotta be pretty precise. I broke off one stud - which was not a problem since I was doing the head anyway and had the shop guy take it out for me - free!

Its not a bad idea to redo the head while you are at it depending on how many miles on the car... if you really wanted to do it right you'd put in some oversized valves and what have you to improve the flow. I just rebuilt the head at 159k - more preventative than anything else... plus it gave me an opportunity to: A.) put in a compression dropping head gasket (important if you are running high boost) and B.) head studs for rigidity and safety.

If you are going to be looking to get some serious powah out of this thing, studs and a metal HG are certainly not a bad idea.
Old 04-07-2006, 04:19 AM
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Default the rs2 EM is not prone to cracking.....it's a cast iron manifold.

where do people come up with this stuff?!?!?

"prone to cracking"...ok take a lever, say about 14 inches, hang it from a bunch of studs, add a 30lb turbo on the end of it, now go drive in any condition imaginable, of course it'll crack without bracing. the stock manifolds and rs2's keep the turbo closer to the head and in a better relative position. i don't see how/why it's a suprise that an aftermarket tubular manifold would be prone to cracking.

and going with one of those exhasut manifolds means changing WAY more stuff than you're thinking of.
Old 04-07-2006, 09:47 AM
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Default great info!

I didn't know you could use the stock EM and also didn't know the RS2 EM wasn't prone to cracking.

This is great for info gathering.

Thanks.

Looking for aerohr's turbo install write up.

the upgrade is looking cheaper for me.


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