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I have a 89 toyota supra turbo five speed targa i love it. when i was 16 i had an 87 turbo five speed no targa. im looking to slightly upgrade the engine wondering about boring 40 over on the pistons 1mm over on the heads keeping stock cams and intake 550 cc injectors and a upgraded ct-26 turbo intercooler, intercooler piping have most parts in mind but before i list wondering what works for everyone else. im new to this site and any help will be apprieciated.
 

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Boring wont help there is no need unless you have a problem and need to rebore. Basic upgrades to power are ic piping, 550 cc injectors with lexus afm. Up the boost usinng a boost controler. Get a turbo timer if you are going to drive the car hard. Get those mods first then build up from there.
 

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yea these engine come forged anyways, if i was you i'g get a bigger turbo, flywheel and cams with gears, thats just my opinion and welcome to the site, post some pics of ur mk3
 
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