Nice chart.
MHI Turbine housing areas:

6 cm2 = 0.41 A/R
7 cm2 = 0.49 A/R
8 cm2 = 0.57 A/R Stock Syclone 8 CM,works great w/2100 stall
9 cm2 = 0.65 A/R
10 cm2 = 0.73 A/R Also works good w/2100 stall
11 cm2 = 0.81 A/R
12 cm2 = 0.89 A/R Takes a while to spool up needs closer to 2400
14 cm2 = 0.97 A/R Minimum 2600 w/lag, 2800 + Stall is better for fast spool-up
15 cm2 = 1.05 A/R
16 cm2 = 1.13 A/R
17 cm2 = 1.29 A/R
19 cm2 = 1.37 A/R

Wish it was easy to get one for every turbo manufacturer.

I think in the past you had said stock boost for the Cyclone is 12 or 15 psi. Buicks also run boost like that , stock. If Snow tries to do that to his 250, bad things will happen. He may progress to that point, but starting there will inevidibly end in failure. And disappointment.
This is his daily driver, not a weekend toy. He also has a tight, teenage budget.
Tom


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