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33 - 34 Auto Transmissions

shy_s6
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shy_s6 Veteran

shy_s6

Posted
Posted

heya guys just wondering how hard it would be to change my mates tired r33 n/a box to a 34 gtt auto box

im looking at buying a 34gtt auto wreck to part out, (keeping the neo for my s14) and my mates 33 box is on its way out, so wondering how hard would it be for us to do the conversion considering i will have all the parts from the 34

will it bolt straight up? speedo cables? lengths the same as 33 box so just use the 33 tailshaft, ecu's etc etc

any info would be great guys!

whats a gtt auto box worth anyway?

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GTSBoy Grand Master

GTSBoy

Posted
Posted (edited)

The R34 engine ECU has an add on board in it to do the job of the separate TCU in the R33.

If you really really really want an R34 tiptronic trans, then the easiest way to get it would be to do a complete Neo+tranny transplant. That way you don't have to try to work out how the hell you're going to make the R33 TCU control the R34 trans.

whats a gtt auto box worth anyway?

Effectively nothing. I got one attached to my Neo engine and I sent it to the tip.

Edited by GTSBoy
bubba Grand Master

bubba

Posted
Posted

The R34 engine ECU has an add on board in it to do the job of the separate TCU in the R33.

If you really really really want an R34 tiptronic trans, then the easiest way to get it would be to do a complete Neo+tranny transplant. That way you don't have to try to work out how the hell you're going to make the R33 TCU control the R34 trans.

Effectively nothing. I got one attached to my Neo engine and I sent it to the tip.

This ^^

You pretty much would have to run a 34GTT ECU, which isn't such a bad thing as they can be NIStuned but would mean changing CAS, coilpacks?, afm?, injectors?

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Better to get a 33 auto - people here just dump them when they do a manual conversion as there is no market for them - I am sure you will be able to pick one up cheaply and save yourself a lot of headaches.

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