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Originally Posted by Supra699
I am looking to buy a 93-95 supra NA
Is there a difference in the Engine block and head, or is it just the internals that differ?...
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Literally everything is different. The entire braking system is MUCH weaker, with fewer racing-oriented ABS features, for example. As was said, the transmission is different, along with the differential - both also much weaker than the TT version. The ecu that controls the engine is different - for example the na uses a distributor but the tt's ignition is all computer-controlled with a coil-on-plug setup. It goes on and on.
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Originally Posted by Supra699
...I plan on replacing all of the internals anyways....
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You wouldn't need to replace any internals if you start with a TT - they're good to 1000hp...really!
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Originally Posted by Supra699
...I also know that there are oil squirters for the crank that do not exist on the Ge. would they need to be installed and if so can it be done?...
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Depends on your horsepower goals. Oh and they're not a bolt-on - you'd have to get the n/a block drilled by a machinist in order to create the mounting points for the oil squirters.
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Originally Posted by Supra699
...I am aware of the difference in breaks, some sensors, internals, etc....
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Are you? In addition to the lack of four-piston calipers up front, the TT puts more braking power on the outside wheels if you brake while cornering. The n/a doesn't do that. Again, it's far more than just sensors - it's literally the entire powertrain front to back that's far weaker in the n/a.
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Originally Posted by Supra699
...Breaks will be upgraded. ...
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Will you upgrade the ABS ecu and the wiring harness too?
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Originally Posted by Supra699
...can I convert a 5spd manual or a auto 4spd to a 6spd manual tranny? and if so do I have to do anything other than just swap the tranny?...
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swap from 5spd manual to 6spd manual would be quite easy - just swap the tranny.
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Originally Posted by Supra699
...I will of course be upgrading the cooling system with an aftermarket radiator and a double fan shroud. new lines, everything....
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Why? The cooling system on the na is the same as the TT's...and the oem TT cooling system doesn't need to be upgraded unless you're going to be roadracing (extended 30+ minute full-on sessions) in the middle of summer, with bpu+++ or apu engine upgrades. In other words, the oem cooling system will probably meet your needs as-is.
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Originally Posted by Supra699
...then I would like to do a twin turbo setup....
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On an n/a engine? That would be horribly expensive. Every kit I've seen for the n/a is a single turbo.
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Originally Posted by Supra699
...any suggestions on good turbo combos are welcome and appreciated...
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Here's a couple of options for upgrade kits:
http://www.boostlogic.com/xcart/home.php?cat=19
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Originally Posted by Supra699
...It will be my first supra. the MKIV is my reason for getting into cars and I will give it my all. It will be a fully documented build with videos pics and a full writeup.
I am planning on using AEM plug-n-play standalone for engine management, using a wiring harness from a GTE and the necessary sensors....then I would like to do a twin turbo setup...
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Be sure not to get a used harness. With all of the heat the 2jz-gte generates, most used harnesses have several broken/cracked/brittle plastic connectors.
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Originally Posted by Supra699
...If there is ayone who has done this, any tips or suggestions would be greatly appreciated!!  |
A tip? Save a bit longer and start with a TT...Really.