Turbo Spec : 7cm or 8cm, 9 blade or 12 blade
Interested in your views and what do you have.
Thinking of speccing up a TD05-18G and wondering whether to go for a 7cm or 8cm exhaust housing and also whether to go for a 12 or 9 blade turbine wheel.
The housing makes no difference to price, but the turbine is more expensive for the 9 blade option.
The 7cm spools better but may suffer surge, the 8cm is a little laggier but will give more power.
I assume a 9 blade spools quicker as less mass and more aerodynamic design.
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