Can i install a non turbo to turbo conversion kit in a 1990 Toyota Supra?

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Old 16 Mar 2014, 01:10 am   #1 (permalink)
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Default Can i install a non turbo to turbo conversion kit in a 1990 Toyota Supra?

I am buying a 1990 toyota supra and i was wondering how hard and expensive it would be to install a turbo conversion kit. Ive been looking around and i cant even find them for years before 1993 so let me know and hopefully you can help me out. Thanks
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Old 16 Mar 2014, 01:25 am   #2 (permalink)
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Dont... DYI turbo installs RARELY work right if it is the original motor it might be nearing 250k miles the motor wont last. Many turbo kits will cost thousands to do right yeah you can buy used but what is the turbo is bad or garbage?
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Old 16 Mar 2014, 01:39 am   #3 (permalink)
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Engines designed for a turbo have many internal differences to the non-turbo engines. Different Compression ratios, valve timing and usually piston coolers are used in turbo engines. Sticking a turbo on a non-turbo engine doesn't work very well. Prior to 1993 the Supra was offered with a single turbo option. You should try to find one of those engines complete.
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Old 16 Mar 2014, 01:55 am   #4 (permalink)
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there will be an un-aviodable issue. regardlees if the engine can accept the turbo or not. that is an engine with a sugnificant amount of miles on it (80-125K~ subjective), capable of accepting a turbo or not, will need some refurbishing.

specifically the valve seats/valves, maybe rings.

all of those parts, and others have been work hardened/wear mated to each other. restoring, let alone pumping combustion pressures past oem specs will result in at least valve seat burning. likely at first turn key. rings and other components, shortly there after.

minimum requirements are likely a valve re-lap. typically, more.

engine mod 101.
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