Awesome then ill hit up mike AGAIN lol to change the setup

Mega are you doing your install yourself? You need to let me know if your ever coming into central Texas for a show or something (San Antonio) so we can meet up.

Did Mike think boost creep would be an issue with that setup? I'm planning on running basically the same thing:

GT2860RS 0.84 A/R
Internal wastegates
GTM test pipes
FI 2.5" CBE (12" res)

No I'm not I'm gonna have a local shop here in mcallen called KMP do it for me I actually did wanted to do it myself but its my first Boosted car and I seriously don't want to be the one to blame that I messed it up lmao xD and Ive never been to a car show/meet in san antonio though I don't have alot of info on that :/

Mine Non Resd straight through from T.P through CBE that's why I chose the exhaust for this turbo setup but Im still in that debate because NUNBERS is important and mating a 3" downpipe from EW to a 2.5" cbe wont that restrict flow/power? (Or whatever its called)

*also mike told me that wasn't gonna be an issue with the "18G" turbos and I'm assuminh neither with those but I rather want to avoid it if I can no?

you wont get boost creep with the .86 AR (stage 2). originally I had .64 AR (stage 1) with internal wastegates and I had trouble running less than 13psi, I got custom 2" restrictor plates made up to put in my exhaust at the time and it worked great, basically adding back pressure prevented exhaust gasses from bypassing the small wastegate opening. I was able to run 10psi on that setup. Now i'm trying to dial in 17psi :driving:

Sounds like you are going with the exact same setup as myself :tup:

Is anyone else here going to need to have the BOV's recirculated (plumbed back)?

I know that I mentioned this to Mike a while back and he said that they would have an option for it because others had already asked about it but he didn't elaborate on what it would be. I don't believe that the standard Tial Q or Turbosmart Raceport BOV's can be recirculated so I would assume that they will send either the Tial QR or the Turbosmart Plumb Back.

Does anyone know more about this?

will there be boost creep issues with the .64ar running 2.5" all the way back, no cats?

It's entirely possible if you're planning on using internal wastegates. Either go external or step up a turbo size and you won't have to worry about it.

By step up a turbo size your reffering to like from .64 to .84?? Don't flame me I'm still in the learning process lol

That's correct.

Yesss!! Everyday you learn something and I finally got it right lmao so then I'm fine with my Exhaust setup that I have in my Signature its all Non-Resd with the .84 internal no need to change to external or would there be a liability on boost creep still? Reason I ask is I rather have room for safety than having trouble down the road :)

Boost creeping is fun! More boost!

More Boost More POOWWAA! Said No Blown Engine Ever :ughdance:

Go with external wastegate. my boost gauge was reading 8.8 PSI while the internal wastegate spring was 7 PSI.

1.8 PSI of boost creep is a lot if you ask me. Im not so sure if going with .86 housing will eliminate the boost creep or will just minimize it (which is still not good)

So just to be in safe side. go with external wastegate. you will have better boost response, better flow, more power, and last but not least, it will extend the life of turbo.

Yes you heard me right it will extend the life of turbo and will give better power and more power.

Please watch this video to learn more about external and internal :tiphat:

Yep. Other than cost, external is always better.

Thx now I'm SET FOR SURE. :)

Very informative video. Thanks for sharing.

How much is it for external $400.00 more I'm guessing?

That video was very informative. Thanks x

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Every factory turbocharged car in the world comes with internal wastegates, for the obvious reasons of: cost, weight, and clearance/space issues, so aside from those, I would say its a good idea to run externals just because internals have certain limitations.

Since the volumetric efficiency of our engine is so high, I would say if you have the extra money just go external so you avoid any boost creep issues with our engine. However, claiming that external wastegates are safer and give "better power" (whatever that means) and more power is just a joke.

The biggest problem typically encountered with internal wastegates is controlling higher amounts of boost (> 20psi). Theres 2 reasons for that, first most factory actuator springs are in the range of 7-14psi, so with an EBC solenoid at max duty cycle (about 90%) that would mean a maximum of 14-28psi. The second issue is the size of the wastegate openings. Internally gated turbos wastegate opening is limited by the size of the turbine housing itself, external wastegates do not have this limitation. This is why the .64 AR suffers from creep issues while the .86 does not.

I currently run 15psi and have no issues holding that to redline on internal gates with .86 housings.

Nice video

For the amount of money that is spent on a turbo kit especially your going to upgrade down the line witch at some point we all do. It is just better to get the External Gates and not have to deal with the issue that come along with internal gates.

Exactly. Don't paint yourself into a corner right off the bat.

I talked to Mike today and he said not to worry about boost creep with the .84 A/R and internal wastegates. I'm sticking with that setup.

Yeah but that's only if you want to stay under say 550 hp. Anything more and you ARE going to need to go external.

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Not necessarily but I won't be going for those power levels either way.

im going internal wastegates as well. im staying around 500hp, then when the need for more speed comes about, ill buy a gtr :)

Is the GTX2860 an upgradable option? Would this be a beneficial upgrade over the standard GT2860?

It would be for sure. I've thought about that too.

If I'm right with my somewhat limited knowledge, I would think the GTX-series, especially at our low boost applications, wouldn't be a crazy huge upgrade. I think the GTX-series would improve transient response, but as for efficiency, we would probably see no difference at the 8-11psi range, really.

Is everyone going to go Uprev? I'd like to go ecutek just to save a couple bucks on EBC if I can. What are the rest of you turn-key customers going to choose?

Can't wait to see these kits coming out and getting installed! Going to be a flood of dyno charts coming on here when this thing starts shipping.

I chose the ecutek option

Same here. Went with ecutek, and the GT2860RS with 0.86 housings. Yeah, it's going to be pretty awesome when everyone starts building...

theres virtually no benefits in upgrading to the GTX on the stock engine, look at the compressor maps. the gt2860 is good for about 580-620whp @ 18-20psi on pump gas with our engine, you could run a bit more boost with meth or e85 but its starting to overspin the turbo and will shorten its life.

if you were planning on running more than 20psi, thats when the GTX really shines, on our engine you could easily run 25-28psi on those turbos without going past its efficiency range, they are good for about 650-680whp. its like getting the response of a gt2860 with the top end of a gt2871r.

I am not sure they have actually gotten that functionality working in Ecutek. Just like the many other premature announcements around these parts.

I hear you, I have yet to hear anything about Ecutek finalizing this feature (boost control) on the VQ platforms. Once the E85 Flex Fuel option is offered on the VQ platform, that is when I'll make the switch.

I switched to Ecutek as well. I thought that it was all sorted out an functioning with the ebc software

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Nope. All of the functions that have been promised are now "coming before the end of the year" per dynotronics.

Good news,
I'll be looking forward to the results of how well this setup works.

There's no way I would do the ECUTEK when the user can't tune it himself. Th fact they have been sketchy here and over on the GTR forums also makes me suspect. Uprev is fine lots of tuners have way more experience. Uprev has great tech support with upgrades always coming.

This. The one thing you don't want to risk is the tuning. The benefits aren't there to take the risk with the unproven tuning software yet.