11-05-2009, 12:52 AM
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#5
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Supra Owner
Join Date: Oct 2005
Location: GA, USA
Posts: 2,209
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Quote:
Originally Posted by 86.5supra
listen before you get into this project you need to fully understand how much money your going to spend to do either swap.
With that said it is always easier to swap a tranny than to built a turbo engine out of a naturally aspirated engine. Most people just think they can buy a bolt on kit, have some half-ass mechanic throw it on and take it out and race it. What they dont tell you is even at 5psi sooner or later it is going to blow. The problem is the internal componets are not and were never built to run boost or handle that kind of HP. The only way to do it correctly is to have the motor bored .40 over and have forged internals installed. Then you need headers, turbo, intercooler, piping, intake manifold, ecu, engine wireharness, oil lines for the turbo, and all the electronics to run everything.
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Agreed with pretty much everything you said. About the only thing I'd add is that the pistons need to be changed to lower-compression when taking the engine from an n/a to turbo.
__________________
Phil '94 Supra Turbo, 6spd, 'APU'+
Displacement is no replacement for boost.
Life begins at 30psi.
NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.
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