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Old 09-16-2009, 10:17 AM   #61
mwsupra23
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ttviper im not sure but i think you have to have the cable. did you intsall a front facing intake manifold? i have been wondering the same thing i know it shifts with it unhooked cause i accidently ran mine unhooked once not sure if its good for it but it did shift.
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Old 09-18-2009, 02:25 AM   #62
ttviper
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thanks mwsupra23 no its a sc. how did it shift, was it sluggish or respondsive. did it feel like it slippedor crab hard. i know that its for fluid pressure though. i dont care if it shifts hard i just dont want it to slip.
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Old 09-18-2009, 09:04 AM   #63
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it didnt slip but i was running the boost logic na built trans so it shifted hard anyways not cause of the cable being off it was cause it was built.
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Old 10-25-2009, 11:26 PM   #64
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is the supra a341e torque convertor the same as the sc400 or ls400 or do they use smaller converters?
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Old 03-20-2010, 07:23 PM   #65
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sorry for the bump, but I have a 94 na car i just pulled the drivetrain from to go tt and I need an EXACT way to make my aristo tt transmission work in my car. i still have my n/a auto and driveshaft. easiest way, and I'd prefer not to swap tailshafts and internals... I'm utilizing the existing aristo harness and ecu and everything that came with the swap I ordered, so I do not see why I'd need to swap valvebodies, etc. Please explain.


Thanks in advance. This will go in my aristo write-up

Last edited by ReLoaDeD BuLLiTT : 03-20-2010 at 07:30 PM.
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Old 04-05-2010, 07:46 PM   #66
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so the 1JZ auto. is the same on both the n/a and tt cars?
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Old 05-07-2010, 07:21 PM   #67
szr.na-t
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Hi Dramon, thanks for the write up.
What is this valve-body upgrade kit that suprastore claim to allow up to 450hp? Do you think this would be achievable with a good transmission cooler and this upgrade?
Also if not, what would be your choice if you wanted to turbo a 93' Auto NA supra?
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Old 05-26-2010, 06:32 PM   #68
Dramon
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the valve body upgrade is probably just shims, but who knows. Its unlikely they'll tell you either. You're better off just going with an upgraded tranny for how much they want for that.
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Old 07-15-2010, 05:32 AM   #69
szr.na-t
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ok thanks. im planning on going na-t with a kit from Mark.
i have the N/A A340E auto and there is a few TT auto boxes around that i could buy fairly cheap.
then is it just a case of swapping all the mentioned pieces from this thread. Did you manage to complete this mod yourself? and how about the TT tailshaft, does it all mate up to the NA back end?
really appreciate your time, thanks.
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Old 07-18-2010, 07:58 PM   #70
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Sorry, the tailshafts are different, so you'll either need to get a custom driveshaft made or find a TT Driveshaft if you have a Supra, otherwise you'll need an SC400 driveshaft if this is going in an SC300.
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Old 07-25-2010, 02:02 PM   #71
szr.na-t
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so in basic form, i need to purchase:
TT auto transmission
TT driveshaft
tranny cooler and lines
Then...swap the components from NA to TT for more clutch packs, then install a cooler and bolt on the TT driveshaft.and in theory that will bolt straight on to the NA rear end and allow me 400bhp figures with the NA-t kit?
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Old 08-30-2010, 09:21 PM   #72
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Sorry to bring this back from the dead a little bit.

But say I were to want to build an Auto SC300. Basically I have a couple options.

1) Install a 1jz tranny as it is essentially the same things as a N/A tranny but with more clutch packs, which should make it ideal for more HP. Then in the future if I need more power, a company like BL can build it for lots of power.

2) Buy a Supra TT tranny/tq converter... and swap the manual valve controls from my old tranny, into the Supra one. Buy an SC400 driveshaft. And done. Then in the future if I need more power, a company like BL can build it for lots of power.

And with either of these choices, I can still retain the stock ECU, unmodded as there is still no electronic line control.

That's what I'm taking out of all of this, is that correct?
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Last edited by Halon : 08-30-2010 at 09:22 PM.
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Old 10-08-2010, 01:29 AM   #73
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ummm??? any more info...i'm planning to do a na-t in my 2001 lexus gs300...but i plan on wanting just around 300 whp...what do you guys recommend for me to do to the tranny? i'm completely lost?
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Old 10-28-2010, 08:12 AM   #74
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can someone who has done the mkiv usdm tt auto swap on a usdm auto n/a mkiv clarify what actually works and what was needed to make it work. there is bunch of mixed up information here!
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Old 11-02-2010, 11:48 AM   #75
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Quote:
Originally Posted by SupraGreg View Post
Quote:
Originally Posted by kauaian View Post
I have read your post dealing with your experience with this swap but wanted a few things clarified.

All right I got the tt auto trans en route.
Need the flexplate and bolts.

Swaping out the valve body out of the n/a trans in to the TT trans, will the TT trans be able to operate correctly? Will the n/a ecu be able to control it?

Yes the TT trans works just fine with the NA valvebody

As for the driveshaft, will I be able to use the front portion of the TT d.s and the rear section of the n/a d.s? or would my best bet be to swap the tail out of the n/a tranny into the TT tranny?

When i did this swap I was getting different answers from everyone..What i ended up doing was buying an SC400 DS, and getting the rear 1/2 shortened to fit by a driveshaft shop. I do not believe you can use half tt, half na.

I know you stated your swap did not last very long. Any reason why?

My TT trans didnt last but a year because when i upgraded my trans, I also got a complete new turbo kit..t67 DBB .82, Bl manifold, Tial 44..18-20 psi which was right around 500 rwhp..and thats more than enough power to kill a stock tt auto..It worked perfect for about 6 months though! haha

Thank you for posting up!
More info...
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Old 08-16-2011, 08:45 PM   #76
srt007
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why cant u see the pics on the write up?
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Old 10-04-2011, 12:52 AM   #77
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Quote:
Originally Posted by srt007 View Post
why cant u see the pics on the write up?
Same here?
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Old 10-31-2011, 05:43 PM   #78
samuel_mkiv
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the na valvebody has 17 bolts and tt has 20 bolts. will not leak any oil pressure?
I read a little on repare manuel on both gearboxes, and there are some that are different except valve body.
sorry for my bad english..
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Old 02-07-2013, 09:01 PM   #79
2jzget
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Anyone have the OP's original pics?
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Old 08-03-2014, 03:57 PM   #80
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sorry to bump this up but does anybody have the wiring diagram thats needed to wire up on the GE harness if im using a aem?
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Old 06-03-2017, 05:08 PM   #81
David2009
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Dramon,

I have tried to send you pm but the system won't let me?

I am interested to learn why it is necessary to replace the single GTE accumulator for the GE version?
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