Vgt turbo upgrade

MarkBroviak

DMax Junkie
Vendor/Sponsor
May 25, 2008
2,127
438
83
Danville Indiana
Mark is there a better drop in wheel for the 3794 without killing the low end or going to a 68mm?

I have a batmowheel for them that I changed the design of and made the hub smaller and the inducer taller. It is the wheel that comes in my BMW GT3794Va Stg2 turbo and is good for up to 740hp and has great manners.
 

rcr1978

Active member
Apr 1, 2007
790
26
28
Spring Creek, NV
Thanks, is there any difference on the turbine side over a stock turbo on size?
I thought it had the 10 blade turbine already just didn't know if it was any bigger?
 

Yngdmax92

Active member
Sep 26, 2013
962
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28
So the difference in price between a stg2 r 3794 68mm wheel vs the stg2r 68 that comes with vanes and standard 68 is very minimal. So in a case if someone had Interest in the choice of them two turbos, has a goal of 600hp-700hp, horsepower goal before I crack a piston and in the future for after lol. I don't want to have to upgrade, but I still want to be able to tow, but want a top end pull as well. (Don't want twins) love a strong turbo brake

What would be the best choice. Lol I know this seems ridiculous because it's probably coming off like I want it all, I'm trying to understand better on my future purchases:thumb:.

Like others said, seriously enjoying this help and info
 

MarkBroviak

DMax Junkie
Vendor/Sponsor
May 25, 2008
2,127
438
83
Danville Indiana
So the difference in price between a stg2 r 3794 68mm wheel vs the stg2r 68 that comes with vanes and standard 68 is very minimal. So in a case if someone had Interest in the choice of them two turbos, has a goal of 600hp-700hp, horsepower goal before I crack a piston and in the future for after lol. I don't want to have to upgrade, but I still want to be able to tow, but want a top end pull as well. (Don't want twins) love a strong turbo brake

What would be the best choice. Lol I know this seems ridiculous because it's probably coming off like I want it all, I'm trying to understand better on my future purchases:thumb:.

Like others said, seriously enjoying this help and info

In that power goal range and what your doing with it the 68mmStg2Reman http://www.danvilleperformance.com/dp-billet-68mm-stg2-reman/ or the 3794 68mm upgrade http://www.danvilleperformance.com/danville-performance-bmw-gt3794va-stage-2-new-turbo/ if you wanted it to be a brand new cart.
 

Yngdmax92

Active member
Sep 26, 2013
962
44
28
Wow, totally different then what I was even looking at, cheaper too! Haha thanks Mark, way better understanding now.... Again thank you!
 

Yngdmax92

Active member
Sep 26, 2013
962
44
28
Your not wrong for asking it here. Just dont ask facebook :lmao:


Sent from my iPhone using Tapatalk


Ahhh Facebook... Such garbage I tell you. Majority of the diesel "gods" on Facebook need it to keep their buisness going, because I have found out that there work doesn't speak loud enough.... But being a Facebook warrior will back them up.
 

Robby Avery

GM TECH @ FENDER GMC
Jul 31, 2008
820
2
18
Norman Park, Georgia
Not to high jack but Mark, what would a 72mm tct wheel flow vs a 72mm batmowheel flow in a vgt? Say modded stock vgt charger, 3794 vgt, 4094 vgt, for comparison? Just looking for flow rate and spool times information mainly. Thanks
 

MarkBroviak

DMax Junkie
Vendor/Sponsor
May 25, 2008
2,127
438
83
Danville Indiana
Not to high jack but Mark, what would a 72mm tct wheel flow vs a 72mm batmowheel flow in a vgt? Say modded stock vgt charger, 3794 vgt, 4094 vgt, for comparison? Just looking for flow rate and spool times information mainly. Thanks

Well, since Bullseye Manufactures my Billet 72mm vgt wheels they can't and won't produce a BMW or TCT version of it and same goes for the 68mm Billet wheel I have. The 72mm is for the guys looking for 1000++hp in compounds or triple setups. I do NOT recommend them for stock motor guys or to run as a single because it is designed to be force fed. All the fastest VGT powered trucks ran my 72mm VGT in their twin and triple setups. Hope this helps.
 

onebaddmaxxx

Active member
Feb 22, 2009
1,212
1
38
Cecil County Md
OP

You cant really go wrong with a 3794 or marks 68stg2r. My shop has the fastest 3794 turbo record with only a 65mm bmw. It drives 100% like stock, spools faster than stock, and will shred tires at 50mph with no issues. the 68stg2r is fun also, but more important to have a proper converter that wont blow through with how fast the power comes in.

If your more or less looking for a nice drop in upgrade, id go 3794
 

MarkBroviak

DMax Junkie
Vendor/Sponsor
May 25, 2008
2,127
438
83
Danville Indiana
Hey Mark, where does your new 68/71 vgt fall in comparison to the 3794 and the 68stg2r?

It's a touch bigger than the 68stg2R so the spool up depending on fuel will be a touch slower but it is capable of around 40hp more on top end than the stg2R making it a an 820hp capable turbo with the correct fueling and parts combination.
 

Yngdmax92

Active member
Sep 26, 2013
962
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28
Is it still a 68mm but with a bigger turbine?


Yes it is, the turbine is 71 which is larger then the 4094 stg2 r but it's also equipped with the lbz vane configuration. Made to be more of the big single of vgts, because like what mark said. The 72 was designed more for twin applications or triples.
 

Josh154

Well-known member
Sep 28, 2015
1,220
85
48
Sioux Falls SD
It's a touch bigger than the 68stg2R so the spool up depending on fuel will be a touch slower but it is capable of around 40hp more on top end than the stg2R making it a an 820hp capable turbo with the correct fueling and parts combination.

Interesting. What size is the turbine on a stock lly charger?
 

Josh154

Well-known member
Sep 28, 2015
1,220
85
48
Sioux Falls SD
That 68/71 sounds like it would be fun one to try. I liked my tct 63.5 but it had no where near the top end this 369sxe has. Although I’m sure had I switched to your tuning on the vgt I would have liked it more.