Seriously OP, why the hell would you do that? It takes 5 minutes to put the intercooler back on.... Here are a few reasons why it's an extremely bad idea:
1) Something can get sucked into your turbo and trash it
2) Something can get sucked into your intake and trash your engine
3) Your MAF sensor is sitting there with no airflow while your intake is wide open and your engine is sucking in air. Your ECU has no idea WTF to do. I seriously don't even know how it would react to this.
And that's just at idle. You said you wanted to test the clutch, I can't even imagine what the ECU would do with an essentially 0 airflow reading while you actually apply throttle.
Reset your ECU and see what happens.
Last edited by iNVAR; 10-08-2012 at 07:22 AM..