Quote:
Originally Posted by shabby
A little clip on the turbine wheel wouldnt hurt if nothing bigger fits, this is normally done on dsm's with great success. Normally people go with a 10 degree clip on a 16g sized turbo, but apperantly buschur went with a 25 degree clip on his 20g turbo.
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Perhaps if it's nessicary, but I'll try to avoid it like the plague. Id rather cut it for a larger wheel.
Clipped Turbine Wheel
When an angle is machined on the turbine wheel exducer (outlet side), the wheel is said to be "clipped". Clipping causes a minor increase in the wheel's flow capability; however, it dramatically lowers the turbo efficiency. This reduction in efficiency causes the turbo to come up on boost at a later engine speed (ex. increased turbo lag). High performance applications should never use a clipped turbine wheel. All Garrett GT turbos use modern unclipped turbine wheels.
