Originally Posted by Virdi
I've had it confirmed by a fella that builds turbos and cut back blades is a thing that is only really required for race/rally cars where the Turbo is constantly spinning and reaching extremely high temps......
On a road car it makes no real difference....

Bollocks, it makes the SAME difference on a road car as it does a race/rally car - as in it does what it is designed to (reducing back pressure, increasing flow, lowering temps etc), but at the expense of an increase in lag

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