2056 is basically a big T3..
If you read the link at the top of the second page on page 2 it actually says the 2056 spools quicker that a stock t3. But I will look into that other turbo for sure.
And trevorbr, yea I'm not sure exactly how the compound boost pressures stacked up, I new they didn't multiply but adding didn't make sense ether. Basically I was going to start both turbos on a low psi and turn it up slowly and see where I got too. What I was saying with the psi numbers is that I want the big turbo to be running the majority of the pressure in the system as the small turbo compresses the atmospher given to it.
I know a lot of this is just guesstimation and I'm fine with that. It will probably be closer than my guess (as we figured out with the k03 and t3)
i drive a 2056 EVERY DAY...
i know how they perform...
they spool up as slow as a T3.. promise you..
i think you should shoot for a midsized turbo, and a big turbo..
not a big turbo, and a bigger turbo..
if you size your turbos too large, its gonna be just like running one big laggy turbo...
sure, the second turbo will help to spool the first, but to what degree? its not going to turn a large, semi-laggy turbo into an insta-spooler...
im just saying that i experience turbo lag quite a bit with my 2056 on my 1.6D
and yes, a GT2056 is close in comparison to a larger T3 turbo...
its not comparable, yes you do have a gt2056 but its the vnt model which i am 99% sure came with a different compressor wheel, and obviously a completely different exhaust side. everyone else that has run a straight gt2056 says it spools up faster than the vw t3. it's also atleast 10% more efficient on the compressor side and probably 15-20% more so on the turbine side. the 2056 is not at all larger than a t3, the compressor and turbine wheels are both smaller, the name of it even means that it would classified as a t2, g
t2056. it's just apples to oranges comparison to compare a gt2056v with an unsorted vnt actuator on a 1.6td to a gt2056 on an aaz in a compound setup. also from what i can tell a gt1856 is the same as a gt2056 but with a smaller exhaust side, it looks to have the same compressor. on the newer garrett stuff gt is the series, theres also gta gtb gtc gtx and i think a few more then the next 2 numbers have to do with the frame size and turbine 20, 22, 25, 28, and the next two are the exducer size of the compressor wheel.
