@Audiophile- I've just spotted your car in one of my old GTR Magazines when it was still in Japan!
It's not really a full on article about the car but just a little feature, I think the whole feature is more on River Tec who I assume built the car originally?
It's all in Japanese so no idea what it says, you still want me to take a pic for you?
Class mateSmall update...
boy, gotta say this..its been a lot of thinking and rethinking what goes where etc...but things are shaping up
I have tested now the new fuel lines...and currently they hold together just fine...not a single drop of fuel. New setup has 3 fuel pumps instead of 2. one inside the tank and 2xDW300 inside surge tank.
Air filter will go to its normal position behind the front light..this is just a test..
There is a slight chance that we try to fire it up this week..stay tuned..
There are some confusing things you have mentioned which would help to clarify.Found out meanwhile that if this is going to be too restrictive I can actually put new GTX3584RS wheel to the existing setup. Its same size but the totally different design...anyone heard about this option?
There are some confusing things you have mentioned which would help to clarify.
Firstly, you said it's 62/62 which implies the 86HTA (which is ~75lb/min, from memory) then mention the 82HTA (which is a 60mm ~68lb/min turbo) - realistically both sounding like they are too small for your needs.
The GTX3584RS sits on the new generation 35RS turbine wheel which is a completely different wheel to what is used on your turbo, one which is meant to be suited to support ~90lb/min compressor flow. That ATP 1.06a/r divided turbine housing is also not a really big flowing thing despite what the a/r might suggest to you, the internal diameter is not particularly big which is part of why they seem very responsive.
The short version of that is that I think the turbine wheel/housing combination will be the choke point of your setup as it is already if you have the 62/86HTA - upgrading the compressor is not going to help that situation. You might find yourself struggling even to match the Audi's power because of that.
If you have fabricated everything around a T4 divided manifold and the power this turbo will support is not enough then unless you are looking at a LOT more power it might be the time to consider other turbo manufacturers, as realistically you need to go up to the 42-series Garretts to get to a good divided T4 footprint option these days.
A Borg Warner EFR8474 would work nice on this setup