You have not given us any idea of what you hope to achieve. Given, you want more power... Do you want it to be reliable? Is the car a daily driver? What is your budget? What are your power goals.Check out [ http://www.zfilms.org/Stories/Z32/index.html ] In a nutshell, the NA engine can be twin turboed. You can't run more than 8 or 9 PSI or the wrist pins will fail in a spectacular fashion. To properly tune the ECU will take custom tuning beyond just buying an aftermarket chip since the timing maps for an NA are different than a TT. And new fuel injectors are required. A stock NA is prone to detonation due to the higher compression ratio. And a turbocharged one will be living right on the edge. All that aside, the higher compression ratio will give excellent spool up and off the line performance. You will still need all the TT parts, IC's, IC piping, manifolds, radiator, A/C condenser, A/C lines, etc.. So later if you blow up the NA engine you can always swap in a TT block. KKrofft
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