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Originally Posted by df963
Hey, I am looking at buying a MKIV Supra, but with licence restrictions here in Australia (I haven't got my full licence yet) I cannot drive turbocharged cars. I thought about buying a NA then upgrading, but the cost would be rather high, as I have found out. Is there anyway to temporarily disengage the turbo, or remove it until later?
Sorry if this is a really n00b question, but it is something that I haven't found an answer for anywhere.
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Yes, you can limit the turbo to 'zero boost' (i.e. absolutely no additive power) by forcing the wastegate to stay wide open 100% of the time.
The easiest way would be to cap the vacuum nipple at the bottom of the actuator. Strictly speaking the turbos would still be boosting slightly, but they'd force open the wastegate as soon as any boost was made. A bit more difficult would be to disconnect the wastegate from the actuator, and then use safety wire to wire the wastegate wide open.
I don't know whether or not this would be sufficient for the vehicle to qualify as "untubocharged" under Aus. laws though ...