compound turbine housing sizing
This is a question I cannot seem to get a good answer on, so I figured I'd throw it out there and hopefully someone with a lot more knowledge than me can help me on this.
Trying to determine what size exhaust housing for my atmospheric turbo setup on my 4bt.
The hx30 up top is a 6cm
But the bottom turbo is an s256. .70 AR T3
I am concerned that it is too small. Before I build all the parts for it, I want to be on the right path.
I was thinking I need something bigger, but I don't have many options.
I can get a 1.0 or a 1.12 or 1.22 in a t4
I also believe there is a .82 in a t3 and t4
What is the difference? I mean is it just the flange size since the turbine wheel is the same regardless or is there more to it?
I had an he341 under it before, and it was choking pretty bad with the 9cm housing.
Was debating an 12 or 14 hx35, but decided to go with the BW turbo as it flows more.
Any info on this would be greatly appreciated.
Thanks!
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1995 f-150 3.9 VE 4bt, hx30 over HE341, 5 x .012 bosch tips, Colt stage 2 cam grind, 4" mandrel exhaust all the way back, 3" mandrel IC piping with 06 RAM IC
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