Turbo Talk Pt. 2

**Seerlah** · 06-14-2008 01:24 PM

Ok, this is a sequal to the last Turbo talk thread.

I was wondering about the GT2876r yesterday. After reading that nicely placed together displacement thread by Crazyass (backwards), I did not know that to make the 06A block into a 2.0 liter all that would be needed was an MK4 crankshaft. No machining. As a noob, I know there will be other tads and bits to come along not mentioned, but at least it is not an extra (close to) a grand to get that extra .1 displacement for you 058 guys. At first, my plan was to just do rods and piston swap to run a bigger turbo. But after that thread, my mind changed.

So, back to that GT2876r. I am a noob when it comes to this stuff, but I learn (have to say thanks to all on this forum board for that). If a GT30r with a built motor on rods and pistons can get you close to 400whp, can a 2.0 liter engine with the GT2876r do the same thing? Or close to 375whp? Plus no new front end with paint job will be needed. Then side skirts and rear end to complimment it. That is ~$1000+ that just welcomed itself.

I just want some input to know what to research and which direction to head in. This of course will not be done for over a year from now, but it is good for me to get an idea of what to search for. Thanks in advance!

*the more posts (info) the better so I can add this to my subscription

**JumboBlack1.8** · 06-14-2008 01:52 PM

I pretty sure you still need to do machine work on an 06A block to make that AEG crank work.....IIRC, both the 058 and the 06A block require some overboring to 83mm, since the stock bore is 81mm. However, the 058 block requires some additional work that the 06A block doesn't need

Someone correct me if I'm wrong, since I don't have any personal experience

**20vpower** · 06-14-2008 02:59 PM

wait what does a paint job and side skirts have to do with building an engine

**Seerlah** · 06-14-2008 03:11 PM

Originally Posted by 20vpower

wait what does a paint job and side skirts have to do with building an engine

Absolutely nothing. But I am talking end result for entire job (price wise). I want to get it all done at once as my mechanic is a tuner and I think he works in conjunction with others shops for machining engines (but he does builds himself, just not machining). And one would not be able to house the bigger FMIC behind a stock bumper. But if one could achive those numbers with the GT2876r on a 2.0, then there will be no need for a new front bumper with paint job ($600), side skirts to match ($400), and rear bumper ($400). That is my main inquiry (Can one achieve close to 375 whp on a 2.0 w/GT2876r?)

**////D** · 06-14-2008 03:30 PM

Originally Posted by Seerlah

Absolutely nothing. But I am talking end result for entire job (price wise). I want to get it all done at once as my mechanic is a tuner and I think he works in conjunction with others shops for machining engines (but he does builds himself, just not machining). And one would not be able to house the bigger FMIC behind a stock bumper. But if one could achive those numbers with the GT2876r on a 2.0, then there will be no need for a new front bumper with paint job ($600), side skirts to match ($400), and rear bumper ($400). That is my main inquiry (Can one achieve close to 375 whp on a 2.0 w/GT2876r?)

if i were you i wouldnt worry about the any of the bumper stuff, just get a smaller fmic core to fit your stock bumper, you might need to trim it a lil but a bunch of guys run fmic with stock bumpers. and im sure those numbers are achievable with that setup

**mike-2ptzero** · 06-14-2008 06:34 PM

You can always take a look at the car GMG posted about, it had a 2.0 liter and a GT2876r. But you might want to search about that turbo, I dont think its going to make anywhere near the power a GT30r can make.

**Seerlah** · 06-14-2008 06:44 PM

I found that link, but it was more of bashing than informative. That is the first and maybe only link that there was for that turbo. He had it dynod with GIAC 91 octane and I plan on running with CTapp 93 and 104. Don't know if that (93 octane) makes that much of a difference, but I would assume though.

Correction:

Pump gas with a built 2.0t Motor 370HP @ 6500RPM
Race gas with a built 2.0t Motor 490HP @ 6600RPM
*GT2876

I am just not sure of those numbers are for the wheels. If so, then that answered my question (sort of overlooked those numbers). May I ask you Mike, do you know if those numbers are for the wheels? If so, that seems maybe the best route for me to take. I don't track and this would feed that adrenaline junky that hides inside of me.

But on the plus side, I am getting my mod thing started. Kind of a good feeling what I learned from this forum and applied to my car. I now have Labree HFC, Milltek exhaust and Ctapp flash. And sports supension w/Neuspeed rear sway bar. Nothing like 600 whp, but yeah

. Next stop should be my last. Fully built pushing around 400+ to the wheels.

**mike-2ptzero** · 06-14-2008 07:12 PM

Those are at the crank. That turbo isn't going to make 400whp on a quattro, to get that you would want a 30r.

**bassed** · 06-15-2008 09:04 AM

I have a 2.0L with a Hybrid Bullseye S256, SurferForever just finished up his 2.0L and is running a GT28RS Both of us 01.5's I think I was the first on here with a 01 to do a 2.0L and now have over 10k on the motor). I first ran a Full 2860rs with the 2.0L. Without a 30r you're not coming close to 400whp, as Mike indicated all ready. You're also going to need to part with everything you've gotten already exhaust wise and go 3" to achieve 400whp.

FYI I'm at 397 at the crank 310 at the wheels with my setup and only 18psi on Pump.

**AudiRacerS4** · 06-15-2008 09:26 AM

the GT2876r turbo is a not a very good streetable turbo and you will make no where close to 400whp. If you want that much power GT30r+ is what you need.

a little info about the GT2876r from 034...

In reality, this turbo is rather unbalanced, as that little turbine housing causes spoolup far faster than that big housing is ready for, causing surge. As such, Garrett recommends against using this turbo in most street performance applications. However, a high revving, very small displacement four cyl could make use of it, as could an asymmetric application (think single turbo V8, with only one bank feeding the turbo).

**mike-2ptzero** · 06-15-2008 09:42 AM

Originally Posted by AudiRacerS4

the GT2876r turbo is a not a very good streetable turbo and you will make no where close to 400whp. If you want that much power GT30r+ is what you need.

a little info about the GT2876r from 034...

In reality, this turbo is rather unbalanced, as that little turbine housing causes spoolup far faster than that big housing is ready for, causing surge. As such, Garrett recommends against using this turbo in most street performance applications. However, a high revving, very small displacement four cyl could make use of it, as could an asymmetric application (think single turbo V8, with only one bank feeding the turbo).

Yeah thats how most of the turbo world has felt about that turbo since its bascially a GT35r with a GT25 exhaust side. Just not a good match for the 2 sides. This turbo has been around for a long time and even when it first came out most people did not have anything good to say about it.

BTW guys I can now offer the new Borgwarner turbos since Full-race now offers them on their site.

**AudiRacerS4** · 06-15-2008 10:04 AM

Originally Posted by mike-2ptzero

Yeah thats how most of the turbo world has felt about that turbo since its bascially a GT35r with a GT25 exhaust side. Just not a good match for the 2 sides. This turbo has been around for a long time and even when it first came out most people did not have anything good to say about it.

BTW guys I can now offer the new Borgwarner turbos since Full-race now offers them on their site.

yeah I've never seen anyone post about using a GT2876r