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Old 12-03-2003, 12:13 AM   #9
Scooby Specialist
Member#: 49087
Join Date: Nov 2003
Chapter/Region: RMIC
Location: Inside your carnot cycle
1998 RST V8 STi swap
'05 R6 '95 BMW V8 hotness


Actually, you should leave your wastegate control in the manifold because it more accurate reflects what the engine is needed. Your BOV definately needs to be tapped before the throttle plate becaues that's where the transients matter. You will have a more responsive turbo that is quicker to spool if the wastegate control is in the manifold, because if it is in a place where it is reading those transients, it will open much sooner dumping all that potential turbo spooling exhaust into a place where it's not needed. Yes you will shorten the life of your turbo... only if it is surging, and you can hear the sound of a turbo surging quite clearly... hard to explain, but you will definately know it... it's very icky. The only other thing that could wear out the turbo quickly is if you aren't running a BOV, and the blades will get quite a nasty shock when that 15lb transient hits the compressor wheel. If you are running a proper BOV, and don't hear any surging, the ammount of life you'll take off your turbo is very very miniscule, and close to non existant if you always let the turbo cool properly before shutting off the car.
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